Journal
MATERIALS RESEARCH BULLETIN
Volume 46, Issue 10, Pages 1734-1737Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2011.05.032
Keywords
Semiconductors; Chemical synthesis; Electrical properties; Optical properties
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Funding
- Defense Research and Development Organization (DRDO), New Delhi [ERIP/ER/0503504/M/01/1007]
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A metal-semiconductor-metal photoconductive detector was fabricated using high quality Ga-doped ZnO film epitaxially grown onto alumina substrate by spray pyrolysis. The photocurrent increases linearly with incident power density for more than two orders of magnitude. Reflectance and photocurrent measurements were carried out to study optoelectronic properties of Ga-doped ZnO thin film. Both spectra are consistent with each other showing good response in UV than visible region. Peak responsivity of about 1187 A/W at 5 V bias for 365 nm light was obtained in UV region. (C) 2011 Elsevier Ltd. All rights reserved.
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