期刊
ACS PHOTONICS
卷 6, 期 4, 页码 967-975出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.8b01653
关键词
Perovskite light emission; room temperature; switchable photovoltaic effect; light-emitting electrochemical cells; vertically aligned carbon nanotubes
类别
资金
- Swiss National Science Foundation [513733]
- ERC Advanced Grant PICOPROP [670918]
Based on the reported ion migration under an electric field in hybrid lead halide perovskites we have developed a bright, light-emitting electrochemical cell with CH3NH3PbBr3 single crystals directly grown on vertically aligned carbon nanotube forests as contact electrodes. Under the applied electric field, charged ions in the crystal drift and accumulate in the vicinity of the electrodes, resulting in an in operando formed p-i-n heterojunction. The decreased interface energy barrier and the strong charge injection due to the CNT tip enhanced electric field result in a bright green light emission up to 1800 cd/m(2) at room temperature (average approximate to 60 cd/m(2)). Beyond the light emission, this original device architecture points to the possibility of implementing vertically aligned CNTs as electrodes in operationally stable perovskite-based optoelectronic devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据