期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 18, 页码 15920-15925出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b00592
关键词
organo-halide perovskite; infrared imaging; up-conversion; organic light-emitting diode; photovoltaic
资金
- Nanoholdings LLC
Direct integration of an infrared (IR) photodetector with an organic light-emitting diode (OLED) enables low cost, pixel-free IR imaging. However, the operation voltage of the resulting IR-to-visible up-conversion is large because of the series device architecture. Here, we report a low-voltage near-IR (NIR)-to-visible up-conversion device using formamidinium lead iodide as a NIR absorber integrated with a phosphorescent OLED. Because of the efficient photo carrier injection from the hybrid perovskite layer to the OLED, we observed a sub-band gap turn-on of the OLED under NIR illumination. The device showed a NIR-to-visible up-conversion efficiency of 3% and a luminance on/off ratio of 10(3) at only 5 V. Finally, we demonstrate pixel-free NIR imaging using the up-conversion device.
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