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Post deposition purification of PTCDA thin films

机译:PTCDA薄膜的沉积后纯化

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摘要

The decomposition of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) molecules during evaporation of unpurified raw material in ultra high vacuum was studied. The fragments were identified by mass spectrometry and the influence of these fragments and further contaminations, of the raw material on the electronic structure of PTCDA thin films was measured by photoemission spectroscopy. Annealing of contaminated PTCDA films was tested as cheap and easy to perform method for (partial) post deposition purification of the contaminated films. (c) 2005 Elsevier B.V. All rights reserved.
机译:研究了未纯化原料在超高真空下蒸发过程中of 3,4,9,10-四羧酸二酐(PTCDA)分子的分解。通过质谱鉴定碎片,并通过光发射光谱法测量这些碎片和进一步污染原材料对PTCDA薄膜的电子结构的影响。污染的PTCDA薄膜的退火测试是一种廉价且易于执行的(部分)沉积后污染薄膜净化方法。 (c)2005 Elsevier B.V.保留所有权利。

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