Please use this identifier to cite or link to this item:
https://doi.org/10.1186/1556-276X-8-415
DC Field | Value | |
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dc.title | ZnO nanoneedle/H2O solid-liquid heterojunctionbased self-powered ultraviolet detector | |
dc.contributor.author | Li, Q | |
dc.contributor.author | Wei, L | |
dc.contributor.author | Xie, Y | |
dc.contributor.author | Zhang, K | |
dc.contributor.author | Liu, L | |
dc.contributor.author | Zhu, D | |
dc.contributor.author | Jiao, J | |
dc.contributor.author | Chen, Y | |
dc.contributor.author | Yan, S | |
dc.contributor.author | Liu, G | |
dc.contributor.author | Mei, L | |
dc.date.accessioned | 2020-11-10T00:33:02Z | |
dc.date.available | 2020-11-10T00:33:02Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Li, Q, Wei, L, Xie, Y, Zhang, K, Liu, L, Zhu, D, Jiao, J, Chen, Y, Yan, S, Liu, G, Mei, L (2013). ZnO nanoneedle/H2O solid-liquid heterojunctionbased self-powered ultraviolet detector. Nanoscale Research Letters 8 (1) : 1-7. ScholarBank@NUS Repository. https://doi.org/10.1186/1556-276X-8-415 | |
dc.identifier.issn | 19317573 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/183213 | |
dc.description.abstract | ZnO nanoneedle arrays were grown vertically on a fluorine-doped tin oxide-coated glass by hydrothermal method at a relatively low temperature. A self-powered photoelectrochemical cell-type UV detector was fabricated using the ZnO nanoneedles as the active photoanode and H2O as the electrolyte. This solid-liquid heterojunction offers an enlarged ZnO/water contact area and a direct pathway for electron transport simultaneously. By connecting this UV photodetector to an ammeter, the intensity of UV light can be quantified using the output short-circuit photocurrent without a power source. High photosensitivity, excellent spectral selectivity, and fast photoresponse at zero bias are observed in this UV detector. The self-powered behavior can be well explained by the formation of a space charge layer near the interface of the solid-liquid heterojunction, which results in a built-in potential and makes the solid-liquid heterojunction work in photovoltaic mode. | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.source | Unpaywall 20201031 | |
dc.subject | Electrolytes | |
dc.subject | Electron transport properties | |
dc.subject | Heterojunctions | |
dc.subject | II-VI semiconductors | |
dc.subject | Liquids | |
dc.subject | Nanocomposites | |
dc.subject | Nanoneedles | |
dc.subject | Photodetectors | |
dc.subject | Photoelectrochemical cells | |
dc.subject | Photons | |
dc.subject | Photovoltaic effects | |
dc.subject | Temperature | |
dc.subject | Tin oxides | |
dc.subject | Zinc oxide | |
dc.subject | Fluorine doped tin oxide | |
dc.subject | Hydrothermal methods | |
dc.subject | Short-circuit photocurrent | |
dc.subject | Solid-liquid | |
dc.subject | Space charge layers | |
dc.subject | Spectral selectivity | |
dc.subject | Ultra-violet photodetectors | |
dc.subject | ZnO nanoneedles | |
dc.subject | Phase interfaces | |
dc.type | Article | |
dc.contributor.department | ELECTRICAL AND COMPUTER ENGINEERING | |
dc.description.doi | 10.1186/1556-276X-8-415 | |
dc.description.sourcetitle | Nanoscale Research Letters | |
dc.description.volume | 8 | |
dc.description.issue | 1 | |
dc.description.page | 1-7 | |
Appears in Collections: | Staff Publications Elements |
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