Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 21, Pages 13384-13391Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b01508
Keywords
TiO2; nanowire arrays; solvothermal synthesis; dye-sensitized solar cells; charge recombination
Funding
- National 863 Project [2013AA031502]
- National Science and Technology Support Program [2015BAI01B05]
- National Natural Science Foundation of China [21203175, 51202046, 51125015, 51502056]
- Fundamental Research Funds for the Central Universities [HIT.NSRIF.2013006, HIT.BRETIII.201403]
- China Postdoctoral Science Foundation [2012M510087, 2013T60366]
- Natural Science Foundation of Heilongjiang Province of China [F2016013]
- Key Laboratory for Photonic and Electric Bandgap Materials, Ministry of Education, Harbin Normal University, China
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Vertically aligned rutile TiO2 nanowire arrays (NWAs) with lengths of similar to 44 mu m have been successfully synthesized on transparent, conductive fluorine-doped tin oxide (FTO) glass by a facile one-step solvothermal method. The length and wire-to-wire distance of NWAs can be controlled by adjusting the ethanol content in the reaction solution. By employing optimized rutile TiO2 NWAs for dye-sensitized solar cells (DSCs), a remarkable power conversion efficiency (PCE) of 8.9% is achieved. Moreover, in combination with a light-scattering layer, the performance of a rutile TiO2 NWAs based DSC can be further enhanced, reaching an impressive PCE of 9.6%, which is the highest efficiency for rutile TiO2 NWA based DSCs so far.
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