Organic-inorganic hybrid perovskites have demonstrated tremendous potential for next-generation electronic and optoelectronic devices due to their remarkable carrier dynamics. However, current studies of electronic and optoelectronic devices have been focused on polycrystalline materials, due to the challenges in synthesizing device compatible high quality single crystalline materials.
Researchers at UC San Diego have accomplished epitaxial growth of single crystal hybrid perovskites with controlled locations, morphologies, and orientations. The invention uses combined strategies of lithography, homoepitaxy, and low temperature solution methods. The crystals grow following a layer-by-layer model under controlled growth parameters. The process is robust and can be readily scaled up. The as-grown epitaxial single crystals were integrated in an array of light emitting diodes, each crystal as a pixel with enhanced quantum efficiencies. This capability opens up new opportunities for designing and fabricating a diverse range of high performance electronic and optoelectronic devices using crystalline hybrid perovskites.
Potential uses include, solar cell, light emitting diode, optical sensor
This invention represents the ﬁrst patterned epitaxial growth of perovskite single crystals—a critical advancement in device integration of organic–inorganic hybrid perovskite materials.
A prototype has been developed.
This technology is patent pending and available for licensing and/or research sponsorship.
Hybrid perovskites, hybrid halides, epitaxial growth, optoelectronics, organic-inorganic