Solar RRL最新文献

{"title":"Flexible Epitaxial Lift-Off InGaP/GaAs/InGaAs Triple-Junction Solar Cells Integrated with Micro/Nanostructured Polymer Film","authors":"Ye-Chan Kim,&nbsp;Thuy Thi Nguyen,&nbsp;Noren Pan,&nbsp;Chris Youtsey,&nbsp;Ho Kwan Kang,&nbsp;Hyun-Beom Shin,&nbsp;Jae-Hyung Jang","doi":"10.1002/solr.202400413","DOIUrl":"10.1002/solr.202400413","url":null,"abstract":"<p>Epitaxial lift-off (ELO) InGaP/GaAs/InGaAs inverted metamorphic triple-junction solar cells are encapsulated with a micro/nanostructured polydimethylsiloxane (PDMS) film. The microprism array (MPA) is realized on the PDMS film to redirect the light incident on the metal grid line to the active area. Subwavelength structures (SWSs) are also introduced onto the PDMS film to suppress the Fresnel optical reflection loss. Triangular and hemicylindrical shapes are considered for the MPA. The optical responses of the two MPAs are calculated by using ray-tracing methods. The triangular MPA performs better than the hemicylindrical MPA in terms of light-redirection efficiency. It is confirmed that 82.0% of the light incident on the metal grid can be harvested by the effect of the triangular MPA and the Fresnel optical reflection loss is reduced effectively by the SWSs. These effects contribute to photocurrent enhancement. The short-circuit current density and power conversion efficiency of the flexible ELO triple-junction solar cells integrated with the micro/nanostructured PDMS film improve by 7.0% and 7.1%, respectively, compared with those of the solar cells without the PDMS film. By using the flexible PDMS film for light management, the flexibility of the ELO solar cells is preserved.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 17","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements and Challenges in Wide-Bandgap Perovskite Solar Cells: From Single Junction to Tandem Solar Cells","authors":"Lu Liu,&nbsp;Dexu Zheng,&nbsp;Minyong Du,&nbsp;Jishuang Liu,&nbsp;Jieqiong Liu,&nbsp;Zhipeng Li,&nbsp;Xinrui Dong,&nbsp;Chang Xu,&nbsp;Yiyang He,&nbsp;Kai Wang,&nbsp;Shengzhong (Frank) Liu","doi":"10.1002/solr.202400359","DOIUrl":"10.1002/solr.202400359","url":null,"abstract":"<p>The exceptional optoelectronic performance and cost-effectiveness of manufacturing have propelled organic–inorganic hybrid perovskite solar cells (PSCs) into the spotlight within the photovoltaic community. Currently, the single-junction PSCs have achieved a certified power conversion efficiency surpassing 26%, edging closer to the illustrious Shockley–Queisser theoretical limit. To further enhance device performance, researchers are currently directing their attention toward the integration of wide-bandgap (WBG) perovskites (Eg &gt; 1.60 eV) as top subcells in conjunction with narrow-bandgap materials, such as perovskite, crystalline silicon, and copper indium gallium selenium, to construct multijunction tandem devices that maximize solar spectral utilization and minimize thermal losses. However, WBG perovskites encounter challenges associated with suboptimal crystal quality, high defect density, and severe phase separation, leading to significant voltage losses and inferior performance. In this regard, extensive research has been conducted, yielding significant findings. This review article summarizes the advancements in composition engineering, additive engineering, and interface engineering of WBG PSCs. Furthermore, the applications of WBG PSCs in various tandem solar cells and their development are discussed. Finally, future prospects for the development of WBG PSCs are outlined.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 17","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermally Stable Perovskite Solar Cells with Fluoropolymer Coating","authors":"Yuki Fujita,&nbsp;Dai Semba,&nbsp;Badamgarav Purev-Ochir,&nbsp;Nozomi Nakamura,&nbsp;Telugu Bhim Raju,&nbsp;Toshinori Matsushima,&nbsp;Chihaya Adachi","doi":"10.1002/solr.202400342","DOIUrl":"10.1002/solr.202400342","url":null,"abstract":"<p>Halide perovskites are promising as the light absorbers of solar cells with efficient solar power conversion. However, why the degradation of perovskite solar cells (PSCs), especially at high temperatures, happens has not been completely understood to date. Herein, it is shown that evaporation of 4-<i>tert</i>-butylpyridine (4-tBP) from the hole transport layer (HTL) of 2,2',7,7'-tetrakis(<i>N</i>,<i>N</i>-di-<i>p</i>-methoxyphenylamino)-9,9'-spirobifluorene (spiro-OMeTAD) is one of possible degradation mechanisms in PSCs at a high temperature of 85 °C. In fresh PSCs, the chemical doping of the spiro-OMeTAD HTL with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) is not so efficient because of the formation of a LiTFSI:4-tBP complex in the HTL. When PSCs are placed at 85 °C, 4-tBP gradually evaporates from the HTL, resulting in the dissociation of the LiTFSI:4-tBP complex. This 4-tBP evaporation enhances the chemical doping of spiro-OMeTAD by LiTFSI and makes the hole transport level of the spiro-OMeTAD HTL deeper, thereby impeding hole extraction at the perovskite/spiro-OMeTAD/Au interfaces. Herein, the 4-tBP evaporation by covering PSCs with a fluoro-polymer CYTOP layer, significantly improving the high-temperature durability of PSCs, is suppressed. The basic understanding obtained in this study would help promote the spread of more thermally durable PSC products in the future.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical Design Guidelines to Inhibit Fracture in Perovskite Solar Cells","authors":"Thomas William Colburn,&nbsp;Kuan Liu,&nbsp;Abigail Carbone,&nbsp;Omar Elsafty,&nbsp;Reinhold Horst Dauskardt","doi":"10.1002/solr.202400321","DOIUrl":"10.1002/solr.202400321","url":null,"abstract":"<p>Perovskite (PVSK) solar cells offer significant benefits over conventional silicon cells including low-cost solution processibility, minimal materials usage related to strong photon absorption in thin-film cell architectures, and a tunable bandgap. However, PVSK films are mechanically fragile, and fracture of PVSK layers and adjacent interfaces are a significant concern during fabrication, encapsulation, and operation. Herein, a thin-film mechanics fracture analysis tailored for p–<i>i</i>–n and n–<i>i</i>–p PVSK solar cells on both soda lime glass and polyimide substrates fabricated with three PVSK crystallization methods is presented. The role of thermal processing of each cell layer is explored to determine the maximum allowable temperature below which fracture is inhibited. In the analysis, the mechanics basis for processing and materials selection guidelines for preventing fracture in PVSK solar cells is provided.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 20","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141779029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"All-Small-Molecule Ternary Organic Solar Cell with 16.35% Efficiency Enabled by Chlorinated Terminal Units","authors":"Fernando García Guijarro,&nbsp;Maria Privado,&nbsp;Shyam Shankar S.,&nbsp;Juan Angel Organero,&nbsp;Pilar de la Cruz,&nbsp;Ganesh Datt Sharma,&nbsp;Fernando Langa","doi":"10.1002/solr.202400420","DOIUrl":"10.1002/solr.202400420","url":null,"abstract":"<p>In the last few years, there have been notable developments in organic solar cells using both small molecule donor and acceptor. It has been noted that adding halogens to the end groups of small molecules could enhance the film structure and, consequently, the performance of the devices. In this study, three novel small molecule donors are created. The molecules include a vinyl-CPDT oligomer with three units, with end-caps made up of indanedione groups and containing four H, four Cl, and four F substituents. The purpose of the study is to investigate how the halogen substituent affects the photovoltaic characteristics of binary devices made with the non-fullerene acceptor (NFA) TOCR2 as the acceptor. Having the halogen in the device enhances its effectiveness, and FG5, which has 4-Cl substituents in the end groups, shows the highest efficiency among all devices with a PCE of 14.39%. Incredibly, the ternary device that is created in normal atmospheric conditions with chloro-substituted FG5 as the donor, TOCR2 as the acceptor, and the wide band gap NFA DICTF as the third element shows significantly improved efficiency, achieving PCE values of up to 16.35%.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 17","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141797989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultra-Lean Silver Screen-Printing for Sustainable Terawatt-Scale Photovoltaic","authors":"Yuchao Zhang,&nbsp;Sisi Wang,&nbsp;Li Wang,&nbsp;Zhenyu Sun,&nbsp;Yuan-Chih Chang,&nbsp;Ran Chen,&nbsp;Catherine Chan,&nbsp;Kuninori Okamoto,&nbsp;Yiwei Ao,&nbsp;Dongliang Wang,&nbsp;Marwan Dhamrin,&nbsp;Tsuji Kosuke,&nbsp;Brett Hallam","doi":"10.1002/solr.202400478","DOIUrl":"10.1002/solr.202400478","url":null,"abstract":"<p>As the photovoltaics industry approaches the terawatt (TW) manufacturing scale, the consumption of silver in screen-printed contacts must be significantly reduced for all cell architectures to avoid risks of depleting the global silver supply and substantial cost inflations. With alternative metallization techniques (e.g., plating) facing their own challenges for mass production, advancements in the mainstream screen-printing technology to accelerate the pace of silver reductions are urgently needed. This work presents a silver-lean screen-printed contact scheme, providing scope for substantial reductions in silver consumption based on existing industrial screen-printing capabilities. The initial testing of such a design leads to the fabrication of 24.04% efficient large-area TOPCon solar cells with 9 mg W⁻¹ silver consumption compatible with existing soldering-based interconnection technologies, corresponding to a 25%_rel reduction in silver usage compared to standard industrial screen-printed TOPCon solar cells. Upon further optimization in pattern designs and fabrication processes, this silver-lean design offers a promising pathway toward ultra-low silver consumption of less than 2 mg W⁻¹ for screen-printed TOPCon solar cells without sacrificing efficiency.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 17","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400478","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141798293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diketopyrrolopyrrole-Dioxo-Benzodithiophene-Based Multifunctional Conjugated Polymers for Organic Field-Effect Transistors and Perovskite Solar Cells","authors":"Kakaraparthi Kranthiraja,&nbsp;Waner He,&nbsp;Hao-Wei Yu,&nbsp;Zhen Feng,&nbsp;Naoya Nozaki,&nbsp;Hidetoshi Matsumoto,&nbsp;Ming-Hsuan Yu,&nbsp;Yong Li,&nbsp;Sergei Manzhos,&nbsp;Mats R. Andersson,&nbsp;Chu-Chen Chueh,&nbsp;Tsuyoshi Michinobu,&nbsp;Prashant Sonar","doi":"10.1002/solr.202470143","DOIUrl":"10.1002/solr.202470143","url":null,"abstract":"<p><b>Organic Field-Effect Transistors</b>\u0000 </p><p>Dual-acceptor-type multifunctional conjugated polymers based on diketopyrrolopyrrole-dioxo-benzodithiophene have been effectively employed as electron transport layer dopant in high-performance perovskite solar cells and as active channel semiconductor for ambipolar organic field-effect transistors. More in article number 2400185, Chu-Chen Chueh, Tsuyoshi Michinobu, Prashant Sonar, and co-workers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 14","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202470143","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141779037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simple Encapsulation Method for Flexible Perovskite Solar Cells with Transparent Electrode-Integrated Barrier Films","authors":"Nara Han,&nbsp;Songyeon Han,&nbsp;Ji-Ho Eom,&nbsp;Tae-Yeon Cho,&nbsp;Joon Young Oh,&nbsp;Woo Jin Choi,&nbsp;Seong-Keun Cho,&nbsp;Dong Seok Ham","doi":"10.1002/solr.202470141","DOIUrl":"10.1002/solr.202470141","url":null,"abstract":"<p><b>Flexible Perovskite Solar Cells</b>\u0000 </p><p>In article number 2400243, Seong-Keun Cho, Dong Seok Ham, and co-workers suggest a transparent electrode-integrated flexible barrier substrate as an encapsulation material for protecting perovskite solar cells (PSCs) from air and moisture penetration. The encapsulated PSCs preserved 90% of initial device performance under harsh conditions (60 °C and 90RH%) for over 400 h.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 14","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202470141","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141779035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identifying the Nature and Location of Defects in n–i–p Perovskite Cells with Highly Sensitive Sub-Bandgap Photocurrent Spectroscopy","authors":"Bas T. van Gorkom,&nbsp;Stacey H. W. Fun,&nbsp;Tom P. A. van der Pol,&nbsp;Willemijn H. M. Remmerswaal,&nbsp;Guus J. W. Aalbers,&nbsp;Martijn M. Wienk,&nbsp;René A. J. Janssen","doi":"10.1002/solr.202400316","DOIUrl":"10.1002/solr.202400316","url":null,"abstract":"<p>Defects that exist in perovskite semiconductors and at their interfaces with charge transport layers limit the performance of perovskite solar cells (PSCs). Highly sensitive photocurrent measurements reveal at least two sub-bandgap defect states in n–<i>i</i>–p PSCs that use tin oxide covered with [6,6]-phenyl-C₆₁-butyric acid methyl ester (PCBM) as the electron transport layer and tris(4-carbazoyl-9-ylphenyl)amine (TCTA) as the hole transport layer. Semitransparent PSCs with an optical spacer-mirror bilayer on top are used to modulate the interference of light. By varying the thickness of the optical spacer and analyzing the changes in the photocurrent spectra using optical simulations, the defect states that produce photocurrent with sub-bandgap excitation are found to be located near the PCBM-perovskite interface. This conclusion is supported by quasi-Fermi level splitting measurements on perovskite n–<i>i</i>–p half stacks. The observations are explained by an enhanced extraction of trapped electrons from the perovskite at the interface with PCBM.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400316","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141779031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Perovskite Subcell Breakdown on the Performance of Perovskite/Perovskite/Silicon Triple-Junction Solar Cells","authors":"Maryamsadat Heydarian,&nbsp;Alexander J. Bett,&nbsp;Christoph Messmer,&nbsp;Johanna Aulich,&nbsp;Oliver Fischer,&nbsp;Minasadat Heydarian,&nbsp;Yashika Gupta,&nbsp;Patricia S. C. Schulze,&nbsp;Juliane Borchert,&nbsp;Florian Schindler,&nbsp;Martin C. Schubert,&nbsp;Stefan W. Glunz","doi":"10.1002/solr.202400376","DOIUrl":"10.1002/solr.202400376","url":null,"abstract":"<p>Perovskite-based triple-junction solar cells have recently gained significant attention and are rapidly developing, thanks to the insights gained from the advancement in its dual-junction counterparts. However, employing perovskite materials in multijunction solar cells with more than two junctions brings new challenges that have not yet been addressed. One aspect is the possibility of reverse bias breakdown of perovskite subcells during operation of the triple–junction device. This is more relevant for triple-junction solar cells because a higher reverse voltage might drop at perovskite subcells compared to the case of dual-junction solar cells. Herein, the breakdown voltages of the two perovskite subcells in perovskite/perovskite/silicon triple-junction solar cells are determined by progressively increasing the reverse bias applied to the subcells in a single-junction architecture during current–voltage measurements and monitoring the appearance of shunts using illuminated lock-in thermography measurements. Furthermore, to analyze the effect on the final triple–junction solar cell, the triple-junction device is brought in different current limitation conditions. It is shown that the subcell breakdown can happen during the operation of the triple-junction solar cell, especially for the case where the perovskite top cell is limiting the overall current of the device. This effect is less severe when the middle perovskite cell limits the current due to the absence of a direct contact with the silver metallization which has shown to be the major degradation site during reverse biasing of perovskite solar cells. Finally, there is no concern regarding breakdown of the silicon bottom cell due to the higher breakdown voltage of silicon compared to perovskite.</p>","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"8 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400376","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}