Direct GaAs Nanowire Growth and Monolithic Light?Emitting Diode Fabrication on Flexible Plastic Substrates

The growth of self-catalyzed GaAs nanowires (NWs) and monolithic light-emitting diode (LED) directly on flexible plastic substrates is reported. Dense NW forest attained in mode using metalorganic vapor phase epitaxy. NWs are shown to be crystalline with a zinc-blende phase. optical properties the found promising both photoluminescence emission light-trapping based reflectance transmittance measurements. LED fabricated from p-type by depositing Au as Ohmic contact TiO2/ITO an electron-selective contact. demonstrated fabrication represent significant step toward low-cost, industrially feasible III–V optoelectronic applications, inexpensive, steps compatible roll-to-roll processing.