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- W2549648611 abstract "The increasing demand for miniature autonomous sensors requires low cost integration methods, but to date, material limitations have prevented the direct growth of optically active III–V materials on CMOS devices. We report on the deposition of GaAs nanowires on polycrystalline conductive films to allow for direct integration of optoelectronic devices on dissimilar materials. Undoped, Si-doped, and Be-doped nanowires were grown at Ts = 400 °C on oxide (indium tin oxide) and metallic (platinum and titanium) films. Be-doping is shown to significantly reduce the nanowire diameter and improve the nanowire aspect ratio to 50:1. Photoluminescence measurements of Be-doped nanowires are 1–2 orders of magnitude stronger than undoped and Si-doped nanowires and have a thermal activation energy of 14 meV, which is comparable to nanowires grown on crystalline substrates. Electrical measurements confirm that the metal-semiconductor junction is Ohmic. These results demonstrate the feasibility of integrating nanowire-based optoelectronic devices directly on CMOS chips." @default.
- W2549648611 created "2016-11-30" @default.
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- W2549648611 date "2016-11-11" @default.
- W2549648611 modified "2023-09-25" @default.
- W2549648611 title "The effect of doping on low temperature growth of high quality GaAs nanowires on polycrystalline films" @default.
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- W2549648611 doi "https://doi.org/10.1088/0957-4484/27/49/495605" @default.
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- W2549648611 hasPublicationYear "2016" @default.
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