Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 188, Issue 2-3, Pages 364-370Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2006.12.037
Keywords
hybrid solar cells; TiO2; nanostructure; surface relief gratings
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Funding
- Ministry of Education, Science & Technology (MoST), Republic of Korea [gist-06] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [R0A-2005-000-10077-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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For use in hybrid solar cells consisting of TiO2 and poly[2-methoxy, 5-(2'-ethyl-hexyloxy)-1,4-phenylenevinylene] (MEH-PPV), a TiO2 nanostructure which has periodic hexagonal hole arrays was fabricated using surface relief gratings on azobenzene-functionalized polymer films as a template in the sol-gel reaction of a Ti-precusor. The ordered bulk heterojunction solar cells, prepared with the TiO2 nanostructure and MEH-PPV, have a higher power conversion efficiency of 0.21% compared to bilayer and random bulk heterojunction solar cells fabricated with thin-dense TiO2 films and randomly networked TiO2 nanoparticles, respectively, under one sun with air mass 1.5 global illumination. (C) 2007 Elsevier B.V. All rights reserved.
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