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DOI | 10.1039/d0ee03487h |
Dynamic halide perovskite heterojunction generates direct current | |
Ma C.; Kim B.; Kim S.-W.; Park N.-G. | |
发表日期 | 2021 |
ISSN | 17545692 |
起始页码 | 374 |
结束页码 | 381 |
卷号 | 14期号:1 |
英文摘要 | Here, we demonstrate a dynamic perovskite device capable of converting mechanical energy into direct current (DC) electrical energy, combining two concepts: carrier generation from the triboelectric effect and carrier separation through band energy level difference. By analyzing and comparing different perovskite (FAPbI3, MAPbI3, MAPbBr3, PEA2PbI4, etc.) and charge transport layer (CTL) materials (spiro-MeOTAD, PTAA, TiO2, SnO2, etc.), the key rules for determining DC output and performances are identified: (1) a suitable band alignment (band position and bandgap) between perovskite and CTL can separate the carrier transfer; (2) a large difference in work function between two layers leads to high electrical potential difference; and (3) a high carrier concentration can enhance the DC power-generating performances. Furthermore, it is found that the light illumination acts as a stimulus to current output to a large extent, which is due to the coupling effect from triboelectric and photovoltaic effects. This study provides a set of key rules to explain the mechanism and to further improve the performance of the dynamic perovskite/CTL heterojunction. © The Royal Society of Chemistry. |
英文关键词 | Carrier transport; Dynamics; Heterojunctions; Perovskite; Photovoltaic effects; Titanium dioxide; Carrier generation; Carrier separation; Carrier transfer; Electrical energy; Electrical potential; Halide perovskites; Light illumination; Mechanical energies; Carrier concentration; comparative study; halide; mechanical property; performance assessment; perovskite |
语种 | 英语 |
来源期刊 | Energy & Environmental Science |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/190814 |
作者单位 | School of Chemical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea; School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, South Korea |
推荐引用方式 GB/T 7714 | Ma C.,Kim B.,Kim S.-W.,et al. Dynamic halide perovskite heterojunction generates direct current[J],2021,14(1). |
APA | Ma C.,Kim B.,Kim S.-W.,&Park N.-G..(2021).Dynamic halide perovskite heterojunction generates direct current.Energy & Environmental Science,14(1). |
MLA | Ma C.,et al."Dynamic halide perovskite heterojunction generates direct current".Energy & Environmental Science 14.1(2021). |
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