Ultra-stable all-inorganic silver bismuth sulfide colloidal nanocrystal photovoltaics using pin type architecture
| Autor: | Whikun Yi, You-Hyun Seo, Cheong Beom Lee, Koen Bertens, Hyeok Kim, Hochan Song, Sanchari Shome, Swarup Biswas, Seok-In Na, Seungjin Lee, Bo Ram Lee, Su Ryong Ha, Jonghee Yang, Hyun-Mo Lee, Jae Taek Oh, Younghoon Kim, Edward H. Sargent, Jin-Seong Park, Hyosung Choi, Sung Yong Bae |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Materials science Renewable Energy Sustainability and the Environment business.industry Nickel oxide Non-blocking I/O Energy conversion efficiency Energy Engineering and Power Technology Polymer Colloid Nanocrystal chemistry Photovoltaics Optoelectronics Electrical and Electronic Engineering Physical and Theoretical Chemistry business Layer (electronics) |
| Zdroj: | Journal of Power Sources. 514:230585 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2021.230585 |
| Popis: | Silver bismuth sulfide (AgBiS2) colloidal nanocrystals (NCs) have emerged as an environmentally friendly light absorber for next-generation photovoltaics. Classical AgBiS2 NC photovoltaics with nip-architecture have been mandated to use a combination of polymer and molybdenum oxide as a hole transport layer (HTL), which are vulnerable to oxygen, heat and water. In this work, we develop all-inorganic AgBiS2 NC photovoltaics with pin-architecture, serving a nickel oxide (NiO) as HTL. We also employ a cascade-energy-level alignment by introducing 3-mercaptopropionic acid-treated AgBiS2 NC layer, enabling enhanced hole collection with minimized interfacial recombination. As a result, the pin type AgBiS2 NC photovoltaics demonstrate a power conversion efficiency of 5.59% as well as excellent stability even under extreme conditions such as heat and water exposures, attributed to superior chemical robustness of the inorganic HTL. This work is the first report on AgBiS2 NC device with all-inorganic components and achieves the highest device efficiency in pin type AgBiS2 NC photovoltaics. |
| Databáze: | OpenAIRE |
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