Bright Visible-Infrared Light Emitting Diodes Based on Hybrid Halide Perovskite with Spiro-OMeTAD as a Hole-Injecting Layer
By Jaramillo-Quintero, Oscar A.; Sanchez, Rafael S.; Rincon, Marina & Mora-Sero, Ivan
Published in The Journal of Physical Chemistry Letters
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2015
Abstract
Hybrid halide perovskites that are currently intensively studied for photovoltaic applications, also present outstanding properties for light emission. Here, we report on the preparation of bright solid state light emitting diodes (LEDs) based on a solution-processed hybrid lead halide perovskite (Pe). In particular, we have utilized the perovskite generally described with the formula CH3NH3PbI3-xClx and exploited a configuration without electron or hole blocking layer in addition to the injecting layers. Compact Tio? and Spiro-OMeTAD were used as electron and hole injecting layers, respectively. We have demonstrated a bright combined visible-infrared radiance of 7.1 W·sr-1·m-2 at a current density of 232 mA·cm-2, and a maxim
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