A simple and cheap way to produce porous ZnO ribbons and their photovoltaic response |
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| Affiliation: | 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;2. Micro-Nano Technologies Research Center and National Key Lab of CBSC, Hunan University, Changsha 410082, China;1. Chemical Engineering Department, Vishwakarma Institute of Technology, Pune, MS, India;2. Department of Chemical Engineering National Institute of Technology, Warangal 506004, AP, India;1. Equipment Manufacturing College, Hebei University of Engineering, Handan 056038, China;2. School of Science, Hebei University of Engineering, Handan 056038, China;1. National Technical University “Kharkiv Polytechnic Institute”, 21, Frunze str., 61002 Kharkiv, Ukraine;2. All-Russian Research Institute for Electrification of Agriculture (VIESH), 2, 1-st Veschnyakovsky proezd, 109456 Moscow, Russian Federation;3. National Taras Shevchenko University, 62, Volodymyrska str., 03680 Kyiv, Ukraine;1. Research Center for Functional Materials and Nanomolecular Science, Jacobs University Bremen Campus Ring 1, 28759 Bremen, Germany;2. Malibu GmbH and Co. KG, Böttcherstr. 7, 33609 Bielefeld, Germany;3. Department of Materials Science and Engineering, Geballe Laboratory for Advanced Materials, Stanford University, 476 Lomita Mall, Stanford, CA 94305, USA |
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| Abstract: | A simple and cheap method is proposed to achieve porous ZnO ribbons by oxidation of ZnS ribbons in the air. ZnS has a fully transformation to ZnO at an annealing temperature of 700°C from energy dispersive X-ray spectra and X-ray diffraction patterns. Scanning electron microscopy images indicate that ZnO ribbons keep the original shapes of ZnS, but produce some ordered and uniform pores on their surfaces. The photovoltage spectrum of ZnO/N3 indicates such dye-porous ZnO ribbons may be used in the dye-sensitized solar cells. The porous ZnO ribbons may also find potential applications in catalyst, sensor, and molecular selection. This technique to produce porous ribbons may also be applied to prepare other porous metal oxide ribbons. |
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