Modulation-doped ZnO as high performance electron-selective layer for efficient silicon heterojunction solar cells
文献类型:期刊论文
作者 | Wang, Dan; Wang, Zilei; Yang, Yang; Zhang, Longfei; Lin, Hao; Zhang, Zhi; Peng, Shanglong; He, Deyan; Ye, Jichun; Gao, Pingqi |
刊名 | NANO ENERGY |
出版日期 | 2018 |
文献子类 | 期刊论文 |
英文摘要 | It has been a long-time dream for photovoltaic (PV) researchers to achieve high performance silicon (Si) heterojunction solar cells (SCs) relying only on low-temperature and solution-based processes. A newly emerging PV technique of carrier-selective contacts, which comprise high performance hole- and electron-selective layers (HSL and ESL) for both polarities on Si substrate, is highly expected to meet this dream. Here, we report a precise control of the doping level in solution-processed ZnO thin films and their successful application as ESLs for organic/Si heterojunction SCs. We show that addition of Li in ZnO (Li-ZnO) allows for the accurate tuning of its work function from 4.15 to 3.85 eV. In case of Si/ZnO/Al heterocontact, presence of the Li-ZnO layer with optimized Li concentration results in a remarkable enhancement in extraction of electrons, showing by a big reduction of contact resistivity (rho(c)) from 100 to 18 m Omega cm(2). When used in combination with an interfacial passivation layer of intrinsic amorphous silicon (a-Si:H), the bilayer ESL of a-Si:H/Li-ZnOhelps to yield an open-circuit voltage (V-oc) of 643 mV and an efficiency up to 15.1%, both remarkable for an organic/Si SC fabricated using solution-based processes. Progress in tuning the Li-ZnO properties to yield improved interfaces between Si and rear-sided electrode may open up a new direction of exploring more functional materials for high performance ESLs via effectively solution-based method. |
语种 | 英语 |
源URL | [http://ir.siat.ac.cn:8080/handle/172644/14893] |
专题 | 深圳先进技术研究院_其他 |
推荐引用方式 GB/T 7714 | Wang, Dan,Wang, Zilei,Yang, Yang,et al. Modulation-doped ZnO as high performance electron-selective layer for efficient silicon heterojunction solar cells[J]. NANO ENERGY,2018. |
APA | Wang, Dan.,Wang, Zilei.,Yang, Yang.,Zhang, Longfei.,Lin, Hao.,...&Gao, Pingqi.(2018).Modulation-doped ZnO as high performance electron-selective layer for efficient silicon heterojunction solar cells.NANO ENERGY. |
MLA | Wang, Dan,et al."Modulation-doped ZnO as high performance electron-selective layer for efficient silicon heterojunction solar cells".NANO ENERGY (2018). |
入库方式: OAI收割
来源:深圳先进技术研究院
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