Synergistic Cascade Carrier Extraction via Dual Interfacial Positioning of Ambipolar Black Phosphorene for High‐Efficiency Perovskite Solar Cells
Synergistic Cascade Carrier Extraction via Dual Interfacial Positioning of Ambipolar Black Phosphorene for High‐Efficiency Perovskite Solar Cells
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DOI：
10.1002/adma.202000999
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发表时间：
2020-05
影响因子：
29.4
通讯作者：
Meng Zhang;M. Ye;Wenlong Wang;Chunyuan Ma;Shun Wang;Qiliang Liu;T. Lian;Jinsong Huang;
中科院分区：
文献类型：
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作者：
Meng Zhang;M. Ye;Wenlong Wang;Chunyuan Ma;Shun Wang;Qiliang Liu;T. Lian;Jinsong Huang;
2D黑磷烯（BP）具有一组恒星的物理特性，例如可调的带隙和极高的光载载体迁移率，可用于光电设备，在此处，BP的定位和量身定制的厚度可与双功能的纳米材料相互划分，并同时构成均匀的运输层，并在此处进行均匀的厚度。稳定的钙钛矿太阳能据报道，通过同时定位，有利的带能量对齐和一致的级联干扰载体提取，从而逐渐增强了功率转换效率，从16.95％的人中提高了19.83％理性BP作为双功能传输材料的实施，用于多种光电设备，包括光电视，传感器，发光二极管等。
2D black phosphorene (BP) carries a stellar set of physical properties such as conveniently tunable bandgap and extremely high ambipolar carrier mobility for optoelectronic devices. Herein, the judicious design and positioning of BP with tailored thickness as dual‐functional nanomaterials to concurrently enhance carrier extraction at both electron transport layer/perovskite and perovskite/hole transport layer interfaces for high‐efficiency and stable perovskite solar cells is reported. The synergy of favorable band energy alignment and concerted cascade interfacial carrier extraction, rendered by concurrent positioning of BP, delivered a progressively enhanced power conversion efficiency of 19.83% from 16.95% (BP‐free). Investigation into interfacial engineering further reveals enhanced light absorption and reduced trap density for improved photovoltaic performance with BP incorporation. This work demonstrates the appealing characteristic of rational implementation of BP as dual‐functional transport material for a diversity of optoelectronic devices, including photodetectors, sensors, light‐emitting diodes, etc.