Journal
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
Volume 56, Issue 3, Pages 813-817Publisher
KOREAN PHYSICAL SOC
DOI: 10.3938/jkps.56.813
Keywords
Dye-sensitized solar cells; ZnO; Nanowire; Nanotube; Recombination rate
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Funding
- Ministry of Education, Science and Technology [(2009-0075729]
- Chonbuk National University in 2009
- National Research Foundation of Korea [2009-0075729] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We demonstrate for the first time novel perforated ZnO nanotube /TiO2 electrode-based dye-sensitized solar cells (DSSCs). From the current-voltage characteristics, the open-circuit voltage V-OC, short-circuit current; density J(SC), and the fill factor FF were determined to be similar to 0.84 V, similar to 4.82 mA/cm(2), and 0.60, respectively. We obtained a power conversion efficiency, eta, of similar to 2.4% under air mass 1.5 global solar conditions. This represented an improvement of approximately 2 times as compared to ZnO nanowire/TiO2 electrode-based DSSCs. The superior photovoltaic performance and J(SC) value are attributed to high dye loading and high light harvesting via the high surface area of the ZnO nanotubes.
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