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Giant Enhancement in UV Response of ZnO Nanobelts by Polymer Surface-Functionalization
Abstract
High sensitivity photodetectors are of great significance in developing a new generation of optoelectronic devices in sensing, imaging, and other applications. In this Communication, highly sensitive UV detectors based on ZnO nanobelts (NBs) are achieved by polymer surface-functionalization. The UV-induced photoconductance in ZnO NBs increases by 5 orders of magnitude after functionalizing, using a polymer that exhibits large UV absorption. The huge increase in photoconductance is attributed to an electron−hole generation process as assisted by the energy states in the polymer. This study suggests that, by selecting polymers with different wavelengths of UV absorption, highly sensitive UV detectors with a large range of detection wavelengths can be fabricated using ZnO NBs.
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Citations
Cites
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Metadata
- Authors
- Lao, C. S., Park, M.-C., Kuang, Q., Deng, Y., Sood, A. K., Polla, D. L., & Wang, Z. L.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-09-19
- Volume
- 129
- Issue
- 40
- Pages
- 12096-12097
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1987727780
- Cited by
- 323
- References
- 1
- FWCI
- 8.59
- Type
- journal article
- Language
- en
- Open access
- closed
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