دورية أكاديمية
10.3% Efficient Green Cd-Free Cu 2 ZnSnS 4 Solar Cells Enabled by Liquid-Phase Promoted Grain Growth
| العنوان: | 10.3% Efficient Green Cd-Free Cu 2 ZnSnS 4 Solar Cells Enabled by Liquid-Phase Promoted Grain Growth |
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| المؤلفون: | Yuan, Xiaojie, Li, Jianjun, Huang, Jialiang, Yan, Chang, Cui, Xin, Sun, Kaiwen, Cong, Jialin, He, Mingrui, Wang, Ao, He, Guojun, Mahboubi Soufiani, Arman, Jiang, Junjie, Zhou, Shujie, Stride, John A., Hoex, Bram, Green, Martin, Hao, Xiaojing |
| بيانات النشر: | John Wiley and Sons Inc |
| سنة النشر: | 2022 |
| المجموعة: | The Hong Kong University of Science and Technology: HKUST Institutional Repository |
| مصطلحات موضوعية: | Carrier collection, Cd-free, Grain growth, Hole transport, Kesterite solar cells |
| الوصف: | Small grain size and near-horizontal grain boundaries are known to be detrimental to the carrier collection efficiency and device performance of pure-sulfide Cu2ZnSnS4 (CZTS) solar cells. However, forming large grains spanning the absorber layer while maintaining high electronic quality is challenging particularly for pure sulfide CZTS. Herein, a liquid-phase-assisted grain growth (LGG) model that enables the formation of large grains spanning across the CZTS absorber without compromising the electronic quality is demonstrated. By introducing a Ge-alloyed CZTS nanoparticle layer at the bottom of the sputtered precursor, a Cu-rich and Sn-rich liquid phase forms at the high temperature sulfurization stage, which can effectively remove the detrimental near-horizontal grain boundaries and promote grain growth, thus greatly improving the carrier collection efficiency and reducing nonradiative recombination. The remaining liquid phase layer at the rear interface shows a high work function, acting as an effective hole transport layer. The modified morphology greatly increases the short-circuit current density and fill factor, enabling 10.3% efficient green Cd-free CZTS devices. This work unlocks a grain growth mechanism, advancing the morphology control of sulfide-based kesterite solar cells. © 2022 The Authors. Small published by Wiley-VCH GmbH. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1613-6810 1613-6829 |
| العلاقة: | https://repository.hkust.edu.hk/ir/Record/1783.1-122932Test; Small, v. 18, (50), 1 November 2022, article number 2204392; https://doi.org/10.1002/smll.202204392Test; http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=1613-6810&rft.volume=&rft.issue=&rft.date=2022&rft.spage=&rft.aulast=Yuan&rft.aufirst=&rft.atitle=10.3%25+Efficient+Green+Cd-Free+Cu2ZnSnS4+Solar+Cells+Enabled+by+Liquid-Phase+Promoted+Grain+Growth&rft.title=SmallTest; http://www.scopus.com/record/display.url?eid=2-s2.0-85141401714&origin=inwardTest; http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000877261100001Test |
| DOI: | 10.1002/smll.202204392 |
| الإتاحة: | https://doi.org/10.1002/smll.202204392Test https://repository.hkust.edu.hk/ir/Record/1783.1-122932Test http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=1613-6810&rft.volume=&rft.issue=&rft.date=2022&rft.spage=&rft.aulast=Yuan&rft.aufirst=&rft.atitle=10.3%25+Efficient+Green+Cd-Free+Cu2ZnSnS4+Solar+Cells+Enabled+by+Liquid-Phase+Promoted+Grain+Growth&rft.title=SmallTest http://www.scopus.com/record/display.url?eid=2-s2.0-85141401714&origin=inwardTest http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000877261100001Test |
| رقم الانضمام: | edsbas.952BB3D8 |
| قاعدة البيانات: | BASE |
| تدمد: | 16136810 16136829 |
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| DOI: | 10.1002/smll.202204392 |