ACS Applied Energy Materials最新文献_第6页

Mesh-Supported Porous Film as a Reservoir for Insoluble Additives and Facilitator of Stable Li Accommodation in Li-Metal Anodes

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-28 DOI: 10.1021/acsaem.4c0221910.1021/acsaem.4c02219

Eunji Kim, Sungho Choi* and Yongseon Kim*,

{"title":"Mesh-Supported Porous Film as a Reservoir for Insoluble Additives and Facilitator of Stable Li Accommodation in Li-Metal Anodes","authors":"Eunji Kim, Sungho Choi* and Yongseon Kim*, ","doi":"10.1021/acsaem.4c0221910.1021/acsaem.4c02219","DOIUrl":"https://doi.org/10.1021/acsaem.4c02219https://doi.org/10.1021/acsaem.4c02219","url":null,"abstract":"An anode structure is proposed for Li-metal secondary batteries. The anode structure comprises a porous film that serves as a reservoir to continuously supply electrolyte-insoluble additives and a mesh-type spacer that mechanically supports the film and also provides space for stable Li storage. Specifically, LiNO3, an effective additive for controlling the solid–electrolyte interphase (SEI) layer of the Li-metal anode but barely soluble in commercial electrolytes using carbonate-based ester solvents, is embedded in the polymer film for achieving its continuous supply. The film is prepared to be porous to ensure Li-ion transport. However, the increased film porosity and high additive content degrade the physical stability and flexibility of the film. To counteract this, a polymer mesh is integrated into the film as a mechanical support, realizing a high LiNO3 loading and high film porosity, which are crucial for sufficient LiNO3 supply and Li-ion transport kinetics. Additionally, the polymer mesh provides a fixed-height space for Li accommodation, maintaining a consistent electrode thickness during charge/discharge processes. This integrated anode structure, realized through a low-cost and simple process, addresses the technical challenges of SEI layer control and electrode thickness stabilization in Li-metal anodes, offering a practical solution for Li-metal secondary batteries.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"11873–11878 11873–11878"},"PeriodicalIF":5.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly Efficient Blade-Coated 1.67 eV p-i-n Perovskite Solar Cells Enabled by a Hybrid Self-Assembled Monolayer and Surface Passivation

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-28 DOI: 10.1021/acsaem.4c0108010.1021/acsaem.4c01080

Zixuan Huang, Xin Ge, Zhen Liu, Biao Shi, Pengyang Wang, Ying Zhao and Xiaodan Zhang*,

{"title":"Highly Efficient Blade-Coated 1.67 eV p-i-n Perovskite Solar Cells Enabled by a Hybrid Self-Assembled Monolayer and Surface Passivation","authors":"Zixuan Huang, Xin Ge, Zhen Liu, Biao Shi, Pengyang Wang, Ying Zhao and Xiaodan Zhang*, ","doi":"10.1021/acsaem.4c0108010.1021/acsaem.4c01080","DOIUrl":"https://doi.org/10.1021/acsaem.4c01080https://doi.org/10.1021/acsaem.4c01080","url":null,"abstract":"Wide-band-gap perovskite solar cells (PSCs) are considered an important part of multijunction tandem solar cells and have attracted extensive research in related fields. For blade-coated inverted wide-band-gap PSCs, nonradiative recombination losses in the perovskite/charge transport layer interface are serious. The performance of blade-coated wide-band-gap perovskite solar cells has hindered the industrialization of tandem solar cells, especially for two-terminal perovskite/silicon tandem solar cells (TSCs). To reduce these losses as much as possible, the choice of hole transport layers and perovskite films post-treatment is extremely important. Herein, we used two strategies: a hybrid self-assembled monolayer as the hole transport layer and surface passivation post-treatment to obtain highly efficient and stable PSCs by the blade-coating method. The champion device demonstrated an efficiency of 21.30% for p-i-n PSCs, which is one of the highest efficiencies for band gaps above 1.67 eV among all of the scalable preparation methods employed.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"11683–11690 11683–11690"},"PeriodicalIF":5.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanisms of UV-Induced Degradation in Wide-Bandgap Perovskite Solar Cells: Insights from Microscopic Analysis

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-28 DOI: 10.1021/acsaem.4c0249610.1021/acsaem.4c02496

Xiting Lang, Zhiyu Gao, Yue Zhao, Yongjie Jiang, Xirui Liu, Minghui Li, Yangyang Gou, Cong Chen, Dewei Zhao, Changlei Wang, Xiuxun Han*, Jichun Ye* and Chuanxiao Xiao*,

{"title":"Mechanisms of UV-Induced Degradation in Wide-Bandgap Perovskite Solar Cells: Insights from Microscopic Analysis","authors":"Xiting Lang, Zhiyu Gao, Yue Zhao, Yongjie Jiang, Xirui Liu, Minghui Li, Yangyang Gou, Cong Chen, Dewei Zhao, Changlei Wang, Xiuxun Han*, Jichun Ye* and Chuanxiao Xiao*, ","doi":"10.1021/acsaem.4c0249610.1021/acsaem.4c02496","DOIUrl":"https://doi.org/10.1021/acsaem.4c02496https://doi.org/10.1021/acsaem.4c02496","url":null,"abstract":"Wide-bandgap (WBG) perovskite solar cells (PSCs) show great potential as the top subcells in tandem devices, yet their vulnerability to ultraviolet (UV) radiation remains a significant barrier to commercialization. This study investigates the mechanisms of UV-induced degradation in WBG devices and films through comprehensive failure analysis. By integrating macroscopic electrical performance evaluations with detailed microscopic characterization, we focus on key aspects such as conductivity, leakage current pathways, defect evolution, and nanomechanical properties. Our results reveal that the primary causes of performance degradation are reductions in short-circuit current and fill factor, accompanied by increased hysteresis. This degradation appears to stem from a malfunctioning junction or increased interfacial recombination, due to high-energy UV photons damaging the junction interface or inducing shallow interfacial defects. Our observations indicate that UV irradiation causes up to a 90% reduction in conductivity and a 5-fold increase in leakage current, particularly at grain boundaries due to interfacial defects. Negative ions accumulate first at the grain boundaries, accompanied by a 75% decrease in the Young's modulus. These findings highlight the critical need to stabilize the light-facing interface or strengthen the near-surface region of perovskite materials to mitigate the harmful effects of UV exposure.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"11670–11677 11670–11677"},"PeriodicalIF":5.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prelithiation Mechanism of Silicon Anodes through the Interfacial Destabilization of Lithium Hydride

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-28 DOI: 10.1021/acsaem.4c0195710.1021/acsaem.4c01957

Natthapong Kamma, Kiettipong Banlusan*, Komsak Aranmala, Orapa Tamwattana, Wanwisa Limphirat, Chatree Saiyasombat, Jeffrey Nash, Pimpa Limthongkul* and Nonglak Meethong*,

{"title":"Prelithiation Mechanism of Silicon Anodes through the Interfacial Destabilization of Lithium Hydride","authors":"Natthapong Kamma, Kiettipong Banlusan*, Komsak Aranmala, Orapa Tamwattana, Wanwisa Limphirat, Chatree Saiyasombat, Jeffrey Nash, Pimpa Limthongkul* and Nonglak Meethong*, ","doi":"10.1021/acsaem.4c0195710.1021/acsaem.4c01957","DOIUrl":"https://doi.org/10.1021/acsaem.4c01957https://doi.org/10.1021/acsaem.4c01957","url":null,"abstract":"Prelithiation is an effective strategy to compensate for irreversible capacity loss caused by solid–electrolyte interphase (SEI) formation during initial cycling of silicon-based anodes. However, the mechanism is complicated due to dynamic phase evolution of metastable alloys based on thermodynamic variables. Prelithiation mechanisms between lithium hydride (LiH) and silicon (Si) anodes were studied. LiH can be easily controlled as a reactant due to its slow reactivity. The interfacial destabilization and reaction kinetics of prelithiation mechanisms are investigated. Interfacial chemical reactions play a critical role in the prelithiation mechanism, involving the release of hydrogen gas. These reactions enable a sacrificial lithium source to penetrate the Si structure, leading to formation of LixSi phases contributing to the prelithiation process efficiency. Additionally, LixSi phase compositions depend on LiH concentrations that are designed to compensate for active lithium loss. An optimized LiH concentration demonstrated more than a 54.9% capacity retention improvement after 100 cycles. LixSi materials can offset the irreversible capacity loss during the first cycle, thereby improving the initially low Coulombic efficiency (ICE), while enhancing the battery cycling stability. This research provides insights into interfacial destabilization and reaction kinetics of the prelithiation method and significantly improves the electrochemical performance of lithium-ion batteries.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"11775–11786 11775–11786"},"PeriodicalIF":5.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsaem.4c01957","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Triphasic Membrane-Free Redox Flow Battery in a Total Aqueous System

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-28 DOI: 10.1021/acsaem.4c0280510.1021/acsaem.4c02805

Junjie Liu, Jintao Deng, Yutong Hua, Chang Liu, Xianhao Zhang, Meixian Li and Yuanhua Shao*,

{"title":"A Triphasic Membrane-Free Redox Flow Battery in a Total Aqueous System","authors":"Junjie Liu, Jintao Deng, Yutong Hua, Chang Liu, Xianhao Zhang, Meixian Li and Yuanhua Shao*, ","doi":"10.1021/acsaem.4c0280510.1021/acsaem.4c02805","DOIUrl":"https://doi.org/10.1021/acsaem.4c02805https://doi.org/10.1021/acsaem.4c02805","url":null,"abstract":"The membrane-free redox flow battery (RFB) represents an innovative design philosophy that encompasses reduced costs, flexible design schemes, and enhanced overall performance. However, despite these advantages, membrane-free RFBs encounter several challenges including low Coulombic efficiency (CE), limited cycling stability, and elevated toxicity from organic solvents. Aiming at these issues, we constructed a triphasic membrane-free RFB using a total aqueous system. The electrolytes for both the anolyte and catholyte are extracted from the tetrabutylammonium chloride-Na2SO4–H2O salting-out system, while the other phase serves as the separator. A novel organic anolyte material, N,N′-di(ethyl butyrate)-4,4′-bipyridinium dichloride, significantly boosts battery performance when paired with a 2,2,6,6-tetramethylpiperidine-N-oxyl-4-sulfate potassium catholyte. Our static battery delivers an open-circuit voltage of 1.24 V, demonstrating a stable energy efficiency with a capacity loss of 0.064% per hour and an average CE of 98.6% over 493 h (345 cycles). Furthermore, we have conducted preliminary construction of a flow battery that exhibited stable energy efficiency, with a capacity decay of 0.035% per cycle and an average CE of 98.7%. These results provide promising evidence supporting the feasibility of this triphasic all-aqueous membrane-free RFB. We also identify primary intermediate species following extended cycling and elucidate two potential degradation pathways for the anolyte material. We anticipate that this novel anolyte material, combined with our innovative design scheme and comprehensive mechanistic analysis, will expand the research scope of RFBs.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"12131–12140 12131–12140"},"PeriodicalIF":5.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utilizing Solvent Repulsion between Dimethylformamide and Isopropanol to Manipulate Sn Distribution for Bifacial Cu₂ZnSn(S,Se)₄ Solar Cells. 利用二甲基甲酰胺和异丙醇之间的溶剂斥力操纵双面铜2锌锡（S,Se）4 太阳能电池的锡分布。

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-27 eCollection Date: 2024-12-23 DOI: 10.1021/acsaem.4c01905

Alice Sheppard, Raphael Agbenyeke, Jude Laverock, Laurence King, Jacques Kenyon, Nada Benhaddou, Nicole Fleck, Robert L Harniman, Andrei Sarua, Devendra Tiwari, Jake W Bowers, Neil A Fox, David J Fermin

{"title":"Utilizing Solvent Repulsion between Dimethylformamide and Isopropanol to Manipulate Sn Distribution for Bifacial Cu2ZnSn(S,Se)4 Solar Cells.","authors":"Alice Sheppard, Raphael Agbenyeke, Jude Laverock, Laurence King, Jacques Kenyon, Nada Benhaddou, Nicole Fleck, Robert L Harniman, Andrei Sarua, Devendra Tiwari, Jake W Bowers, Neil A Fox, David J Fermin","doi":"10.1021/acsaem.4c01905","DOIUrl":"10.1021/acsaem.4c01905","url":null,"abstract":"Rationalizing the role of chemical interactions in the precursor solutions on the structure, morphology, and performance of thin-film Cu2ZnSn(S,Se)4 (CZTSSe) is key for the development of bifacial and other photovoltaic (PV) device architectures designed by scalable solution-based methods. In this study, we uncover the impact of dimethylformamide (DMF) and isopropanol (IPA) solvent mixtures on cation complexation and rheology of the precursor solution, as well as the corresponding morphology, composition, and PV performance of CZTSSe thin-film grown on fluorine-doped tin oxide (FTO). We find that increasing the proportion of IPA leads to a nonlinear increase in dynamic viscosity due to the strong repulsion between DMF and IPA, which is characterized by an interaction cohesion parameter of 3.06. The repulsive solvent interaction not only leads to complex dependence on absorber thickness and surface roughness but also on composition disorder in the annealed CZTSSe films. Systematic studies involving Raman, scanning electron microscopy, SIMS, XPS, and energy-filtered photoemission of electron microscopy show that adding 25% of IPA to DMF leads to thin films with a high degree of structure and composition homogeneity in comparison to pure DMF-based precursors. Further increasing the IPA content promotes Sn surface segregation and secondary phases, which have a clear impact on the surface electronic landscape of the absorber layer. This analysis allows for the rationalization of the device performance with the stack configuration glass/F:SnO2/CZTSSe/CdS (50 nm)/i-ZnO (50 nm)/Al:ZnO (500 nm)/Ag (500 nm).","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"11766-11774"},"PeriodicalIF":5.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11672233/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142902383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utilizing Solvent Repulsion between Dimethylformamide and Isopropanol to Manipulate Sn Distribution for Bifacial Cu2ZnSn(S,Se)4 Solar Cells

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-27 DOI: 10.1021/acsaem.4c0190510.1021/acsaem.4c01905

Alice Sheppard, Raphael Agbenyeke, Jude Laverock, Laurence King, Jacques Kenyon, Nada Benhaddou, Nicole Fleck, Robert L. Harniman, Andrei Sarua, Devendra Tiwari, Jake W. Bowers, Neil A. Fox and David J. Fermin*,

{"title":"Utilizing Solvent Repulsion between Dimethylformamide and Isopropanol to Manipulate Sn Distribution for Bifacial Cu2ZnSn(S,Se)4 Solar Cells","authors":"Alice Sheppard, Raphael Agbenyeke, Jude Laverock, Laurence King, Jacques Kenyon, Nada Benhaddou, Nicole Fleck, Robert L. Harniman, Andrei Sarua, Devendra Tiwari, Jake W. Bowers, Neil A. Fox and David J. Fermin*, ","doi":"10.1021/acsaem.4c0190510.1021/acsaem.4c01905","DOIUrl":"https://doi.org/10.1021/acsaem.4c01905https://doi.org/10.1021/acsaem.4c01905","url":null,"abstract":"Rationalizing the role of chemical interactions in the precursor solutions on the structure, morphology, and performance of thin-film Cu2ZnSn(S,Se)4 (CZTSSe) is key for the development of bifacial and other photovoltaic (PV) device architectures designed by scalable solution-based methods. In this study, we uncover the impact of dimethylformamide (DMF) and isopropanol (IPA) solvent mixtures on cation complexation and rheology of the precursor solution, as well as the corresponding morphology, composition, and PV performance of CZTSSe thin-film grown on fluorine-doped tin oxide (FTO). We find that increasing the proportion of IPA leads to a nonlinear increase in dynamic viscosity due to the strong repulsion between DMF and IPA, which is characterized by an interaction cohesion parameter of 3.06. The repulsive solvent interaction not only leads to complex dependence on absorber thickness and surface roughness but also on composition disorder in the annealed CZTSSe films. Systematic studies involving Raman, scanning electron microscopy, SIMS, XPS, and energy-filtered photoemission of electron microscopy show that adding 25% of IPA to DMF leads to thin films with a high degree of structure and composition homogeneity in comparison to pure DMF-based precursors. Further increasing the IPA content promotes Sn surface segregation and secondary phases, which have a clear impact on the surface electronic landscape of the absorber layer. This analysis allows for the rationalization of the device performance with the stack configuration glass/F:SnO2/CZTSSe/CdS (50 nm)/i-ZnO (50 nm)/Al:ZnO (500 nm)/Ag (500 nm).","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"11766–11774 11766–11774"},"PeriodicalIF":5.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsaem.4c01905","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability Enhancement of Perovskite-Based Indoor Photovoltaics with Pulsed Laser-Ablated 2D-Layered Nanomaterials

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-27 DOI: 10.1021/acsaem.4c0289010.1021/acsaem.4c02890

Ifeanyichukwu C. Amaechi*, Ivy Asuo, Ibrahima Ka, Riad Nechache and Alain Pignolet*,

{"title":"Stability Enhancement of Perovskite-Based Indoor Photovoltaics with Pulsed Laser-Ablated 2D-Layered Nanomaterials","authors":"Ifeanyichukwu C. Amaechi*, Ivy Asuo, Ibrahima Ka, Riad Nechache and Alain Pignolet*, ","doi":"10.1021/acsaem.4c0289010.1021/acsaem.4c02890","DOIUrl":"https://doi.org/10.1021/acsaem.4c02890https://doi.org/10.1021/acsaem.4c02890","url":null,"abstract":"The primary challenge in organic–inorganic perovskite-based photovoltaics (PVs) mainly lies in losses attributed to trap-assisted nonradiative recombination and charge inhibition at the interface between the perovskite absorbing layer and the charge transport layers, which significantly contributes to instability and low photoconversion efficiency (PCE) of the PV. Here, a strategy to overcome the instability problem by incorporating a small quantity of pulsed laser-ablated two-dimensional (2D) layered material, bismuth titanate nanoparticles (BiT NPs) after postcrystallization of a mixed formamidinium (FA) and cesium (Cs)-based precursor solution is proposed. The properties of the devices obtained using this strategy are then compared to those of reference 3D as well as modified 3D, namely conventional 2D/3D heterostructures based on 2D organic octylammonium bromide (OABr). While the bilayered inorganic perovskite additive formed a 2D/3D bilayer at the interface, it also contributed significantly to the observed stable charge carrier dynamics, particularly in terms of the recombination rate across the interface. In contrast to the moderately stable characteristics observed for the unencapsulated reference 3D and 2D OABr-passivated devices, those based on pulsed laser-ablated BiT NPs showed excellent durability over a period of 1000 h, despite the slight compromise in terms of the PCE.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"12155–12164 12155–12164"},"PeriodicalIF":5.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Performance Based on the Synergistic Effect of Three-Phase Nanocomposite-rGO-ZnO Nanowires Embedded in the PVDF Matrix as a Power Source for Low-Powered Portable Electronic Devices

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-27 DOI: 10.1021/acsaem.4c0217910.1021/acsaem.4c02179

Pounomi Bera, Sovandeb Sen, Susmita Kundu and Shrabanee Sen*,

{"title":"Enhanced Performance Based on the Synergistic Effect of Three-Phase Nanocomposite-rGO-ZnO Nanowires Embedded in the PVDF Matrix as a Power Source for Low-Powered Portable Electronic Devices","authors":"Pounomi Bera, Sovandeb Sen, Susmita Kundu and Shrabanee Sen*, ","doi":"10.1021/acsaem.4c0217910.1021/acsaem.4c02179","DOIUrl":"https://doi.org/10.1021/acsaem.4c02179https://doi.org/10.1021/acsaem.4c02179","url":null,"abstract":"In this study, a piezoelectric–triboelectric hybrid nanogenerator based on poly(vinylidene fluoride) (PVDF), reduced graphene oxide (rGO), and zinc oxide nanowires (ZnONWs) has been developed. A comparison study with different weight percentages of rGO-ZnONWs in the PVDF matrix was done. Thereby, the optimized nanocomposite film used as a piezoelectric layer of the hybrid device showed the highest piezoelectric properties along with triboelectric properties. The synergistic combination of these two material features results in the enhanced output performance of the hybrid nanogenerator. The microstructural and morphological characteristics of rGO-ZnONWs and the composite films were thoroughly studied. The hybrid nanogenerator with 3 wt % of rGO-ZnONW exhibited an output voltage of 135 V, a maximum current of 73 μA, and a maximum power density of 586 μW/cm2. Due to the low cost, light weight, sustainability, biocompatibility, and excellent energy conversion efficiency of the optimized flexible device, it exhibited excellent application in portable wearable electronics and self-powered systems.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"11834–11851 11834–11851"},"PeriodicalIF":5.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving Thermoelectric Conversion Efficiency of Mg3(Sb, Bi)2-Based TE Materials via Interface Contact Layer Optimization

IF 5.4 3区材料科学

ACS Applied Energy Materials Pub Date : 2024-11-27 DOI: 10.1021/acsaem.4c0279410.1021/acsaem.4c02794

Raju Chetty, Jayachandran Babu and Takao Mori*,

{"title":"Improving Thermoelectric Conversion Efficiency of Mg3(Sb, Bi)2-Based TE Materials via Interface Contact Layer Optimization","authors":"Raju Chetty, Jayachandran Babu and Takao Mori*, ","doi":"10.1021/acsaem.4c0279410.1021/acsaem.4c02794","DOIUrl":"https://doi.org/10.1021/acsaem.4c02794https://doi.org/10.1021/acsaem.4c02794","url":null,"abstract":"Mg3(Sb, Bi)2-based compounds have recently attracted intense attention as thermoelectric (TE) materials for power generation and cooling applications because of their high TE performance. The contact interface layers play a crucial role in achieving a high conversion efficiency of TE devices. Iron contacts have often been used for the Mg3(Sb, Bi)2 compound; however, a large drawback for device fabrication is their incompatibility with solder. In this study, we developed cupronickel as a potential interface contact layer for Mg3(Sb, Bi)2. A crack-free interface with a low specific contact resistance of ∼5 μΩ cm2 enables a maximum conversion efficiency (ηmax) of ∼8% for the single-leg cupronickel/Mg3(Sb, Bi)2/cupronickel. Additionally, a ηmax of ∼7.8% is realized for a 2-pair module of Mg3(Sb, Bi)2 and MgAgSb at a temperature difference (ΔT) of 277 K. The optimization of the cupronickel contact layer in this study has the potential to enhance the conversion efficiency of Mg3(Sb, Bi)2-based compounds.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 24","pages":"12112–12118 12112–12118"},"PeriodicalIF":5.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0