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50-μm thick flexibl...
50-μm thick flexible dopant-free interdigitated-back-contact silicon heterojunction solar cells with front MoOx coatings for efficient antireflection and passivation
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- Lu, Na (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.
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- Lei, Qiyun (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.
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- Xu, Xinan (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.
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- Yang, Liu (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.;Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China.
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- Yang, Zhenhai (författare)
- Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS, Ningbo 315201, Peoples R China.
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- Liu, Zunke (författare)
- Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS, Ningbo 315201, Peoples R China.
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- Zeng, Yuheng (författare)
- Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS, Ningbo 315201, Peoples R China.
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- Ye, Jichun (författare)
- Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS, Ningbo 315201, Peoples R China.
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- He, Sailing (författare)
- KTH,Elektroteknisk teori och konstruktion,Zhejiang-KTH Joint Research Center of Photonics, JORCEP,Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.;Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China.
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Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.;Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China. (creator_code:org_t)
- Optica Publishing Group, 2022
- 2022
- Engelska.
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Ingår i: Optics Express. - : Optica Publishing Group. - 1094-4087. ; 30:12, s. 21309-21323
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We demonstrate experimentally a flexible crystalline silicon (c-Si) solar cell (SC) based on dopant-free interdigitated back contacts (IBCs) with thickness of merely 50 µm for, to the best of our knowledge, the first time. A MoOx thin film is proposed to cover the front surface and the power conversion efficiency (PCE) is boosted to over triple that of the uncoated SC. Compared with the four-time thicker SC, our thin SC is still over 77% efficient. Systematic studies show the front MoOx film functions for both antireflection and passivation, contributing to the excellent performance. A double-interlayer (instead of a previously-reported single interlayer) is identified at the MoOx/c-Si interface, leading to efficient chemical passivation. Meanwhile, due to the large workfunction difference, underneath the interface a strong built-in electric field is generated, which intensifies the electric field over the entire c-Si active layer, especially in the 50-µm thick layer. Photocarriers are expelled quickly to the back contacts with less recombined and more extracted. Besides, our thin IBC SC is highly flexible. When bent to a radius of 6 mm, its PCE is still 76.6% of that of the unbent cell. Fabricated with low-temperature and doping-free processes, our thin SCs are promising as cost-effective, light-weight and flexible power sources.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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- ref (ämneskategori)
- art (ämneskategori)
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