Controlled Homoepitaxial Growth of Hybrid Perovskites.
basic_science · Level V
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- Record sourced from PubMed, PMID 29611280.
- Also identified by DOI 10.1002/adma.201705992.
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Abstract
Organic-inorganic hybrid perovskites have demonstrated tremendous potential for the next-generation electronic and optoelectronic devices due to their remarkable carrier dynamics. Current studies are focusing on polycrystals, since controlled growth of device compatible single crystals is extremely challenging. Here, the first chemical epitaxial growth of single crystal CH<sub>3</sub> NH<sub>3</sub> PbBr<sub>3</sub> with controlled locations, morphologies, and orientations, using combined strategies of advanced microfabrication, homoepitaxy, and low temperature solution method is reported. The growth is found to follow a layer-by-layer model. A light emitting diode array, with each CH<sub>3</sub> NH<sub>3</sub> PbBr<sub>3</sub> crystal as a single pixel, with enhanced quantum efficiencies than its polycrystalline counterparts is demonstrated.