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Effect of oxygen plasma treatment of indium tin oxide for organic solar cell
Author(s) -
Hashimoto Yuichi,
Hamagaki Manabu
Publication year - 2006
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20313
Subject(s) - indium tin oxide , photocurrent , oxygen , indium , materials science , solar cell , ion , tin , electrode , oxide , electron , work function , stacking , inorganic chemistry , analytical chemistry (journal) , chemistry , nanotechnology , layer (electronics) , optoelectronics , metallurgy , environmental chemistry , physics , organic chemistry , quantum mechanics
We have investigated the contribution of oxygen ions and electrons in the oxygen plasma treatment of an indium tin oxide (ITO) electrode for organic solar cell (ITO/CuPc/C 60 /CuPc/Al). The cell characteristics were markedly improved by the treatments using positive oxygen ions and electrons. In the case of treatment by positive oxygen ions, short‐circuit photocurrent density increased markedly. The enhancement of photocurrent was explained in terms of a lowering of the total resistance between the CuPc layer and ITO due to an increase in the work function and highly oriented stacking in CuPc molecular configurations during the growth process. In the case of treatment by electrons, on the other hand, the fill factor showed a high value of about 0.5. However, further studies are needed for confirmation of this phenomenon. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 154(4): 1–7, 2006; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20313