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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Li, Xiaodong Gao, Caitian Duan, Huigao Lu, Bingan Wang, Youqing Chen, Lulu Zhang, Zhenxing Pan, Xiaojun Xie, Erqing |
| Description | Author Affiliation: Li X ( School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, Gansu, PR China. lixd04@163.com) |
| Abstract | TiO2/SnO2 branched heterojunction nanostructure with TiO2 branches on electrospun SnO2 nanofiber (B-SnO2 NF) networks serves as a model architecture for efficient self-powered UV photodetector based on a photoelectrochemical cell (PECC). The nanostructure simultaneously offers a low degree of charge recombination and a direct pathway for electron transport. Without correcting 64.5% loss of incident photons through light absorption and scattering by the F-doped tin oxide (FTO) glass, the incident power conversion efficiency reaches 14.7% at 330 nm, more than twice as large as the nanocrystalline TiO2 (TiO2 NC, 6.4%)-film based PECC. By connecting a PECC to an ammeter, the intensity of UV light is quantified using the output short-circuit photocurrent density (J(sc)) without a power source. Under UV irradiation, the self-powered UV photodetector exhibits a high responsivity of 0.6 A/W, a high on/off ratio of 4550, a rise time of 0.03 s and a decay time of 0.01 s for J(sc) signal. The excellent performance of the B-SnO2 NF-based PECC type self-powered photodetector will enable significant advancements for next-generation photodetection and photosensing applications. |
| File Format | HTM / HTML |
| ISSN | 16136810 |
| Issue Number | 11 |
| Journal | Small |
| Volume Number | 9 |
| e-ISSN | 16136829 |
| Language | English |
| Publisher | Wiley-VCH |
| Publisher Date | 2013-06-10 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Nanotechnology Nanostructures Chemistry Photochemistry Methods Tin Compounds Titanium Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Nanoscience and Nanotechnology Medicine Biomaterials Engineering Biotechnology |
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