APL EnergyPub Date : 2024-04-24DOI: 10.1063/5.0191316
Lijie Du, Weiran Zheng
{"title":"Catalyst deactivation during water electrolysis: Understanding and mitigation","authors":"Lijie Du, Weiran Zheng","doi":"10.1063/5.0191316","DOIUrl":"https://doi.org/10.1063/5.0191316","url":null,"abstract":"Electrocatalyst deactivation poses a significant obstacle to transitioning water electrolysis technology from laboratory-scale to industrial applications. To inspire more effort on this topic, this contribution explores the structural factors contributing to catalyst deactivation, elucidating the underlying mechanisms with detailed case studies of hydrogen and oxygen evolution reactions. In particular, the in situ assessment and characterization techniques are highlighted, which can offer a collective understanding of catalyst deactivation. Building on these insights, recent advances in mitigating catalyst deactivation are introduced, from innovative catalyst designs to advanced electrode engineering. The review concludes by emphasizing the necessity for universal test protocols for deactivation and integrating evidence from diverse in situ measurements, aiming to provide introductive guidance examining the complexities of electrocatalyst deactivation.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140663426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-04-10DOI: 10.1063/5.0193527
V. Kothalawala, Kosuke Suzuki, Xin Li, Bernardo Barbiellini, J. Nokelainen, I. Makkonen, Rafael Ferragut, Pekka Tynjälä, Petteri Laine, Juho Välikangas, Tao Hu, Ulla Lassi, Kodai Takano, N. Tsuji, Yosuke Amada, A. A. Sasikala Devi, Matti Alatalo, Yoshiharu Sakurai, Hiroshi Sakurai, Mohammad Babar, Venkatasubramanian Vishwanathan, H. Hafiz, Arun Bansil
{"title":"Determining effects of doping lithium nickel oxide with tungsten using Compton scattering","authors":"V. Kothalawala, Kosuke Suzuki, Xin Li, Bernardo Barbiellini, J. Nokelainen, I. Makkonen, Rafael Ferragut, Pekka Tynjälä, Petteri Laine, Juho Välikangas, Tao Hu, Ulla Lassi, Kodai Takano, N. Tsuji, Yosuke Amada, A. A. Sasikala Devi, Matti Alatalo, Yoshiharu Sakurai, Hiroshi Sakurai, Mohammad Babar, Venkatasubramanian Vishwanathan, H. Hafiz, Arun Bansil","doi":"10.1063/5.0193527","DOIUrl":"https://doi.org/10.1063/5.0193527","url":null,"abstract":"X-ray Compton scattering experiments along with parallel first-principles computations were carried out on LiNiO2 to understand the effects of W doping on this cathode material for Li-ion batteries. By employing high-energy x rays exceeding 100 keV, an insight is gained into the fate of the W valence electrons, which are adduced to undergo transfer to empty O 2p energy bands within the active oxide matrix of the cathode. The substitution of W for Ni is shown to increase the electronic conductivity and to enhance the total magnetization per Ni atom. Our study demonstrates that an analysis of line shapes of Compton scattered x rays in combination with theoretical modeling can provide a precise method for an atomic level understanding of the nature of the doping process.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140719925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-04-02DOI: 10.1063/5.0197277
R. Soref, Francesco De Leonardis, G. Daligou, O. Moutanabbir
{"title":"Directed high-energy infrared laser beams for photovoltaic generation of electric power at remote locations","authors":"R. Soref, Francesco De Leonardis, G. Daligou, O. Moutanabbir","doi":"10.1063/5.0197277","DOIUrl":"https://doi.org/10.1063/5.0197277","url":null,"abstract":"Transferring energy without transferring mass is a powerful paradigm to address the challenges faced when the access to, or the deployment of, the infrastructure for energy conversion is locally impossible or impractical. Laser beaming holds the promise of effectively implementing this paradigm. With this perspective, this work evaluates the optical-to-electrical power conversion that is created when a collimated laser beam illuminates a silicon photovoltaic solar cell that is located kilometers away from the laser. The laser is a CW high-energy Yb-doped fiber laser emitting at a center wavelength of 1075 nm with ∼1 m2 of effective beam area. For 20 kW illumination of a solar panel having 0.6 m2 of area, optical simulations and thermal simulations indicate an electrical output power of 3000 W at a panel temperature of 550 K. Our investigations show that thermo-radiative cells are rather inefficient. In contrast, an optimized approach to harvest laser energy is achieved by using a hybrid module consisting of a photovoltaic cell and a thermoelectric generator. Finally, practical considerations related to infrared power beaming are discussed and its potential applications are outlined.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140753381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-03-01DOI: 10.1063/5.0194976
Zhuo-Hao Zhou, Cheng-Yu He, Xiang-Hu Gao
{"title":"Recent advances of spectrally selective absorbers: Materials, nanostructures, and photothermal power generation","authors":"Zhuo-Hao Zhou, Cheng-Yu He, Xiang-Hu Gao","doi":"10.1063/5.0194976","DOIUrl":"https://doi.org/10.1063/5.0194976","url":null,"abstract":"With the increasing development of photothermal techniques in various fields, particularly concentrated solar power (CSP) systems and solar thermoelectric generators (STEGs), the demand for high-performance spectrally selective absorbers (SSAs) has grown significantly. These SSAs are essential in achieving high solar absorption and minimal infrared thermal loss, thereby significantly enhancing solar utilization efficiency. This need becomes particularly critical in CSP systems, where high temperatures are pivotal for improved efficiency. However, the necessity for high temperatures imposes stringent requirements on the fabrication of SSAs, given the inherent trade-off between optical performance and thermal stability. SSAs typically require nanoscale thin films, but they are prone to oxidation and diffusion at high temperatures. Recent developments in photothermal materials, including ceramic composites, MXenes, high-entropy materials, and graphene, offer promising solutions to enhance SSAs’ performance. This review article provides a comprehensive evaluation of the latest advancements in these emerging photothermal materials. We summarize the strategies for integrating these advanced materials with already established nanostructures, which is a highly promising approach for the development of advanced SSAs. Additionally, the review explores the application of SSAs in CSP systems and STEGs to boost power generation efficiency. We conclude by summarizing the challenges and opportunities in the field of high-temperature SSAs, offering valuable insights into the development of high-performance SSAs and their role in solar-thermal power generation systems.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140089470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-03-01DOI: 10.1063/5.0193601
Mritunjaya Parashar, Mohin Sharma, D. K. Saini, Todd A. Byers, Joseph M. Luther, I. R. Sellers, A. Kirmani, Bibhudutta Rout
{"title":"Probing elemental diffusion and radiation tolerance of perovskite solar cells via non-destructive Rutherford backscattering spectrometry","authors":"Mritunjaya Parashar, Mohin Sharma, D. K. Saini, Todd A. Byers, Joseph M. Luther, I. R. Sellers, A. Kirmani, Bibhudutta Rout","doi":"10.1063/5.0193601","DOIUrl":"https://doi.org/10.1063/5.0193601","url":null,"abstract":"Mixed organic–inorganic halide perovskite-based solar cells have attracted interest in recent years due to their potential for both terrestrial and space applications. Analysis of interfaces is critical to predicting device behavior and optimizing device architectures. Most advanced tools to study buried interfaces are destructive in nature and can induce further degradation. Ion beam techniques, such as Rutherford backscattering spectrometry (RBS), is a useful non-destructive method to probe an elemental depth profile of multilayered perovskite solar cells (PSCs) as well as to study the inter-diffusion of various elemental species across interfaces. Additionally, PSCs are becoming viable candidates for space photovoltaic applications, and it is critical to investigate their radiation-induced degradation. RBS can be simultaneously utilized to analyze the radiation effects induced by He+ beam on the device, given their presence in space orbits. In the present work, a 2 MeV He+ beam was used to probe the evidence of elemental diffusion across PSC interfaces with architecture glass/ITO/SnO2/Cs0.05(MA0.17FA0.83)0.95Pb(I0.83Br0.17)3/spiro-OMeTAD/MoO3/Au. During the analysis, the device active area was exposed to an irradiation equivalent of up to 1.62 × 1015 He+/cm2, and yet, no measurable evidence (with a depth resolution ∼1 nm) of beam-induced ion migration was observed, implying high radiation tolerance of PSCs. On the other hand, aged PSCs exhibited indications of the movement of diverse elemental species, such as Au, Pb, In, Sn, Br, and I, in the active area of the device, which was quantified with the help of RBS.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140274739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-03-01DOI: 10.1063/5.0176450
Sayak Roy, Ummiya Qamar, A. A. Sasikala Devi, Santanu Das
{"title":"Recent progresses on Janus electrocatalysts for water electrolysis: A critical review","authors":"Sayak Roy, Ummiya Qamar, A. A. Sasikala Devi, Santanu Das","doi":"10.1063/5.0176450","DOIUrl":"https://doi.org/10.1063/5.0176450","url":null,"abstract":"Newly emerged Janus materials showed the vast potential for catalysis and photocatalysis owing to their multifunctional properties, attracting attention as next-generation functional materials. This Review focuses on various synthesis processes for developing a novel class of Janus materials for applications in electrocatalysis and photo-electrocatalysis via water electrolysis. Starting with summarizing the different designs and preparation of Janus particles, this Review analyzed the compositions and categories of Janus materials. Furthermore, this Review discusses various synthesis processes of Janus materials, followed by classifications of different synthesis routes for Janus materials with a detailed review of the respective process parameters, multifunctional properties, and present status of their development. This Review also summarizes the comprehensive properties of the Janus material, subjected to their applications toward catalytic hydrogen evolution reactions, oxygen evolution reactions, and photo-electrocatalysis. Finally, a thorough summary is presented on the synthesis and applications of Janus particle, while the respective challenges and outlooks are also discussed.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140279507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-03-01DOI: 10.1063/5.0186028
D. E. Parsons, G. Koutsourakis, J. Blakesley
{"title":"Performance measurements for indoor photovoltaic devices: Classification of a novel light source","authors":"D. E. Parsons, G. Koutsourakis, J. Blakesley","doi":"10.1063/5.0186028","DOIUrl":"https://doi.org/10.1063/5.0186028","url":null,"abstract":"There is an increasing interest in using indoor photovoltaic (IPV) devices to power Internet of Things applications, low power communications, and indoor environmental sensing. For the commercialization of IPV technologies, device performance measurements need to conform to the relevant standardized specifications. We present a novel IPV device measurement system that incorporates digital light processing (DLP) to deliver a spectrally invariant light source at all required illuminance levels, as specified by the indoor standard testing conditions in IEC TS 62607-7-2:2023. We evaluated the DLP system according to requirements for spectral coincidence, temporal stability, and non-uniformity at the sample plane. We demonstrate the measurements to define the classification status of the system and the unique benefits of the DLP system that allow a stable spectral profile and high levels of uniformity across all illuminance levels. This is the first reported measurement system for IPV device testing based on DLP technology, and the classification methodology of this work can be used as an example for the classification of indoor light simulators in laboratory environments based on the latest IEC TS 62607-7-2:2023.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140272808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-03-01DOI: 10.1063/5.0190465
Shivam Singh, Ellen Moons
{"title":"Impact of photoinduced phase segregation in mixed-halide perovskite absorbers on their material and device stability","authors":"Shivam Singh, Ellen Moons","doi":"10.1063/5.0190465","DOIUrl":"https://doi.org/10.1063/5.0190465","url":null,"abstract":"Mixed-halide perovskites enable bandgap engineering for tandem solar cell and light-emitting diode applications. However, photoinduced halide phase segregation introduces a compositional instability, that is, formation of I-rich and Br-rich phases, which compromises photovoltaic efficiency and stability. While optical and structural studies of the photoinduced phase segregation in mixed-halide perovskites have been reported, its impact on the material stability is missing. Here, a detailed compositional analysis of mixed-halide perovskite films using x-ray and ultraviolet photoelectron spectroscopy (UPS) was carried out to determine how their stability in various environments depends on the halide ratio. A series of perovskite thin films were fabricated with the composition CH3NH3Pb(IxBr1−x)3, where x = 0.00, 0.25, 0.50, 0.75, and 1.00, and analyzed under different conditions, such as exposure to light in ambient and in nitrogen atmosphere, as well as storage in the dark. From the spectroscopy results, complemented with structural and optical properties, it was found that the deletion of halide ions from the surface is facilitated in mixed-halide perovskites in comparison with pure halide perovskites. A higher stability was found for the mixed-halide perovskite containing less than 25% Br, and it decreases with increasing Br content. This study also established the effect of the Br/I ratio on the energy landscape of the materials. The UPS spectra reveal that photoinduced degradation results in a mismatch of the energy levels at the perovskite/transport layer interface, which may limit the collection of charge carriers. These findings correlate well with the photovoltaic device stability under similar degradation conditions.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140401185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-03-01DOI: 10.1063/5.0188166
H. Phirke, S. Gharabeiki, A. Singh, A. Krishna, S. Siebentritt, A. Redinger
{"title":"Quantifying recombination and charge carrier extraction in halide perovskites via hyperspectral time-resolved photoluminescence imaging","authors":"H. Phirke, S. Gharabeiki, A. Singh, A. Krishna, S. Siebentritt, A. Redinger","doi":"10.1063/5.0188166","DOIUrl":"https://doi.org/10.1063/5.0188166","url":null,"abstract":"Identifying sources of nonradiative recombination and quantifying charge carrier extraction in halide perovskite solar cells are important in further developing this thin-film technology. Steady-state and time-resolved photoluminescence (TRPL), in combination with analytical modeling, have emerged as non-destructive tools to achieve the desired results. However, the exact location of the recombination and charge carrier extraction losses in devices is often obscured by various competing processes when photoluminescence measurements are analyzed. Here, we show via absolute-photon-calibrated hyperspectral photoluminescence and TRPL imaging how surface passivation and inhomogeneities at interfaces impact the photoluminescence quantum yields and minority carrier lifetimes. Laser illumination from the perovskite and glass/TiO2 sides allows us to disentangle changes in surface recombination velocity from the charge carrier extraction at the electron transport layer. We find that charge extraction is spatially modulated due to an inhomogeneous mesoporous (mp)-TiO2 film thickness. Our results show that the mp-TiO2 layer is not fully optimized since the electronic properties are spatially modified, leading to lateral changes in quasi-Fermi-level splitting, minority carrier lifetime and, consequently, a reduction in open-circuit voltage.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140272122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL EnergyPub Date : 2024-02-27DOI: 10.1063/5.0193955
Shanmuga Priya Karmegam, P. Murugavel
{"title":"Lead-free BaTiO3-based relaxor ferroelectric thin film rendering rapid discharge rate for pulsed power energy application","authors":"Shanmuga Priya Karmegam, P. Murugavel","doi":"10.1063/5.0193955","DOIUrl":"https://doi.org/10.1063/5.0193955","url":null,"abstract":"Ferroelectric thin film capacitors have large application potential in pulsed-power electronic and electrical systems due to their high-power density and rapid discharge capabilities. Although lead-based dielectrics are promising, the pursuit of eco-friendly, lead-free alternatives is gaining research attention. Here, the Bi and Li co-doped BaTiO3 thin film exhibiting relaxor ferroelectric properties was investigated for its energy storage properties. The fabricated polycrystalline Ba0.85(Bi0.5Li0.5)0.15TiO3 thin film by pulsed laser deposition revealed good breakdown strength (∼4 MV cm−1), a slim ferroelectric loop, and low leakage characteristics suitable for energy storage applications. The film exhibits a significant value of recoverable energy density (∼70 J cm−3) with better frequency and thermal stability. Notably, the better overall performance parameters of the film, including a sizable power density (261 MW cm−3) and a fast discharge rate (150 ns), along with good energy density and breakdown strength, make the material suitable for pulsed-power energy applications.","PeriodicalId":505149,"journal":{"name":"APL Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140424107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}