Pure Formamidinium‐Based Perovskite Light‐Emitting Diodes with High Efficiency and Low Driving Voltage
- 23 November 2016
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 29 (4)
Abstract
A formamidinium(FA)-based perovskite has shown superior optoelectronic properties including better stability than methylammonium-based counterparts. Here, 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.Keywords
Funding Information
- Air Force Office of Scientific Research (FA9550‐15‐1‐0333)
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