Pure Formamidinium‐Based Perovskite Light‐Emitting Diodes with High Efficiency and Low Driving Voltage. Issue 4 (23rd November 2016)

• Record Type: Journal Article
• Authors: Meng, Lei; Yao, En‐Ping; Hong, Ziruo; Chen, Huajun; Sun, Pengyu; Yang, Zhanlue; Li, Gang; Yang, Yang
• Is Part Of: Advanced materials. Volume 29:Issue 4(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-11-23
• Subjects: formamidinium -- light‐emitting diodes -- perovskites -- sub‐bandgap emissions; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201603826
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : A formamidinium(FA)‐based perovskite showns superior optoelectronic properties including better stability than methylammonium‐based counterparts. Pure FA‐perovskite‐based light‐emitting diodes (LEDs) with high efficiency are reported. Interestingly, the LED clearly shows a sub‐bandgap emission at 1.7 V (bandgap 2.3 eV). This important discovery provides further insights of the charge transport mechanism in perovskite‐based optoelectronic devices.