Journal
NANO LETTERS
Volume 10, Issue 6, Pages 2117-2120Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl1006432
Keywords
Silicon; nanowire; photodetector; visible; infrared
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Funding
- Agiltron, Inc. contract with the Department of Energy
- National Science Foundation
- Samsung SMD
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Nanowire photodetectors can perform exceptionally well due to their unique properties arising from the nanowire geometry. Here we report on the phenomenal responsivity and extended spectral range of scalable, vertically etched, silicon nanowire photodetector arrays defined by nanoimprint lithography. The high internal gain in these devices allows for detection at below room temperatures of subfemtowatt per micrometer visible illumination and picowatt infrared illumination resulting from band to surface state generation.
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