Balance on the charge generation, separation and transfer performance of different TiO{sub 2} nanostructures in quantum dot sensitized solar cells
- Key Laboratory of Efficient & Clean Energy Utilization, The Education Department of Hunan Province, School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410111 (China)
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, and School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070 (China)
Graphical abstract: QDSSCs with different structure: (a) J-V curves, (b) TRPL spectra. - Highlights: • Charge generation, separation and transfer performance have been balanced by different structures. • Excellent charge separation and transfer performance have been exhibited for nano-array structure. • Nanotube array structure relative better charge generation, excellent charge separation and transfer performance of QDSSCs. - Abstract: TiO{sub 2} nanoparticle and nano-array structures including nanorods, nanowires and nanotubes are prepared for the photo-electrodes of CuInS{sub 2} quantum dot sensitized solar cells, which are investigated the balance on charge generation, separation and transfer performance in solar cells. The optical absorption properties and PL spectra of different photo-electrodes are investigated, which indicates better charge generation property for nanoparticle structure and better charge separation property for nano-arrays structure. With the grain boundary of nanoparticle films and excellent charge transfer performance of nano-arrays films, higher short-circuit current density value has been performed for all the nano-array structure based solar cells. Due to the relative large surface area of three nano-arrays structure for charge generation, excellent charge separation and transfer performance, the TiO{sub 2} nanotube based CuInS{sub 2} quantum dot sensitized solar cells exhibits greater photovoltaic efficiency than other nanostructures, which can support the progress for further photovoltaic performance enhancement on quantum dot sensitized solar cells.
- OSTI ID:
- 22730429
- Journal Information:
- Materials Research Bulletin, Vol. 94; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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