Effect of indium and tin contamination on the efficiency and electronic properties of organic bulk hetero-junction solar cells
作者： Anirudh Sharma , Scott E Watkins , David A Lewis , Gunther Andersson , None
DOI: 10.1016/J.SOLMAT.2011.07.012
关键词:
摘要: Abstract Organic photovoltaic devices using an electrode of indium tin oxide (ITO) coated with a buffer layer poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) exposed to controlled humidity during fabrication showed 65–75% decrease in efficiency and displayed S-shaped J–V curves, changes, which are attributed different levels migration into the PEDOT:PSS film. A distinct shift secondary electron cut-off UV Photoelectron spectra (UPS) ITO/PEDOT:PSS samples indicate increase dipole at interface, could explain appearance curves. Additionally, density low binding energies is reduced for suggesting second mechanism decreased device performance.
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