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caoxiafei专家顾问 (著名写手)
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Work Function of FTO and ITO 已有1人参与
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Work function of fluorine doped tin oxide Abstract: Fluorine doped tin oxide FTO is a commonly used transparent conducting oxide in optoelectronic device applications. The work function of FTO is commonly cited as 4.4 eV, which is incommensurate with recent device performance results. Using x-ray photoelectron spectroscopy, the authors measured the work function of commercial FTO to be 5.0 eV. UV ozone treatment was found to increase the work function by 0.1 eV due to surface band bending. The origins of the much lower work function previously reported are also discussed and are found to be a result of carbon contamination and UV induced work function lowering. Work function of indium tin oxide transparent conductor measured by photoelectron spectroscopy Abstract: We used ultraviolet and x-ray photoelectron spectroscopy XPS and UPS techniques to directly measure absolute values of vacuum work function of indium tin oxide ITO thin films. We obtained a work function of 4.4–4.5 eV which is lower than the commonly cited value. These values do not change substantially by heating and Ar ion sputtering. The atomic concentrations of each element in ITO, measured with XPS, are also quite stable under heat treatment and ion sputtering. [ 来自科研家族 新能源家族 ] |
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caoxiafei
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2楼2011-11-15 12:19:42