Abstract
Room-temperature electroluminescence (EL) is demonstrated from a light-emitting diode (LED) based on two-dimensional lead halide perovskites, (C6H5NH3)2PbI4. The device has a multilayer structure of ITO/Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)/(C6H5CH2NH3)2PbI4/Bathophenanthroline/Al. The EL emission peaks at 526 nm with a narrow full width at half maximum of 15 nm, which origins from perovskite exciton emission. The LED device exhibits a maximum luminance of ∼9 cd m-2 at a bias of 5 V.
| Original language | English |
|---|---|
| Article number | 151101 |
| Journal | Applied Physics Letters |
| Volume | 109 |
| Issue number | 15 |
| DOIs | |
| State | Published - 10 Oct 2016 |
| Externally published | Yes |
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