https://scholars.lib.ntu.edu.tw/handle/123456789/631329
標題: | Thiophene-Based Polyelectrolyte Boosts High-Performance Quasi-2D Perovskite Solar Cells with Ultralow Energy Loss | 作者: | Huang, Hsin Hsiang Yang, Tso An Su, Li Yun Chen, Chiung Han Chen, Yu Ting Ghosh, Dibyajyoti Lin, King Fu Tretiak, Sergei CHU-CHEN CHUEH Nie, Wanyi Tsai, Hsinhan LEE-YIH WANG |
關鍵字: | OPTICAL-PROPERTIES; TOLERANCE FACTOR; CATIONS; FORMAMIDINIUM; EFFICIENCY; LAYERS | 公開日期: | 1-五月-2023 | 出版社: | AMER CHEMICAL SOC | 卷: | 5 | 期: | 5 | 起(迄)頁: | 1384 | 來源出版物: | ACS Materials Letters | 摘要: | The rise of quasi-2D perovskite structures holds great promise for highly efficient and stable perovskite solar cells (PCSs). As such, fabricating large-area quasi-2D perovskite solar cells (PCSs) with high power conversion remains under active exploration. We identified that maintaining the homogeneous crystalline orientation upon scaling up is a key challenge. Thus, we introduce a thiophene-based polyelectrolyte as the hole transporting layer (HTL) to facilitate large area quasi-2D PCSs fabrication with high performance. The HTL with carboxyl acid anchoring groups can be attached to various conducting metal oxide substrates, enabling a conformal self-assembled monolayer (SAM). This SAM surface facilitates the quasi-2D perovskite crystal growth vertically aligned to the substrate. Along with a favorable energy alignment, a high open-circuit voltage (VOC) of 1.24 V was achieved, approaching the Shockley-Queisser optimal limit (VOC = 1.34 V). Remarkably, the device maintained over 80% of its initial efficiency after operating at the maximum power point under simulated AM1.5G solar irradiation for 1000 h at a relative humidity of 60%. These findings offer new fabrication strategies, paving the way to scalable quasi-2D PCS production with high efficiencies. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/631329 | ISSN: | 2639-4979 | DOI: | 10.1021/acsmaterialslett.2c01104 |
顯示於: | 化學工程學系 |
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