材料科学
钙钛矿(结构)
光致发光
光电子学
亮度
卤化物
量子产额
发光二极管
二极管
铅(地质)
量子效率
蓝光
深蓝色
发光
光学
光化学
无机化学
荧光
结晶学
物理
化学
地质学
地貌学
作者
Siyu Yan,Wanli Tian,Hua Chen,Kaixin Tang,Tingting Lin,Gaoyu Zhong,Longzhen Qiu,Xiaoyong Pan,Wei Zhi Wang
标识
DOI:10.1002/adom.202001709
摘要
Abstract The perovskite light‐emitting diode (PeLED) based on lead has the advantages of excellent purity, high efficiency, and good brightness. In order to develop a highly luminescent and deep blue lead halide perovskite light emitting diode, here, a two‐dimensional layered lead perovskite owning the high deep blue photoluminescence quantum yield 80% at 445 nm is reported. In addition, the maximum recording brightness and the peak external quantum efficiency of the PeLED is 1315 cd m −2 and 3.08%, respectively, which outdoes that of previously reported deep blue lead PeLEDs. The half‐life of the device reaches 3.5 h at 5 V. This work clearly shows that the layered lead perovskite will provide a route to fabricate stable and high‐performance deep blue emission PeLEDs.
科研通智能强力驱动
Strongly Powered by AbleSci AI