4.8 Article

Temperature Dependence of the Piezotronic and Piezophototronic Effects in a-axis GaN Nanobelts

Journal

ADVANCED MATERIALS
Volume 27, Issue 48, Pages 8067-8074

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201504534

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Funding

  1. U.S. Department of Energy, Office of Basic Energy Sciences [DE-FG02-07ER46394]

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The temperature dependence of the piezotronic and piezophototronic effects in a-axis GaN nanobelts from 77 to 300 K is investigated. The piezotronic effect is enhanced by over 440% under lower temperatures. Two independent processes are discovered to form a competing mechanism through the investigation of the temperature dependence of the piezophototronic effect in a-axis GaN nanobelts.

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