Energy shift of photoemission spectra for organics-passivated CdSe nanoparticles: The final-state effect

Pin Jiun Wu, Ku Ding Tsuei*, Kung-Hwa Wei, Keng S. Liang

*此作品的通信作者

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

Size-dependent energy shift of photoemission spectra with respect to bulk sample has been examined for colloidally prepared CdSe nanoparticles with a series of particle sizes. The core-level shifts are well described by a theoretical calculation based on a final-state effect model, whereas an additional initial-state effect due to quantum confinement is required to elucidate the valence-band edge shifts. The results indicate that the interaction between the photohole and the dielectric background in the final state has to be considered in photoemission measurements for organics-passivated nanoparticles. The calculated results in the literature appear to overestimate the initial-state effect compared to our experimental observation.

原文English
頁(從 - 到)6-11
頁數6
期刊Solid State Communications
141
發行號1
DOIs
出版狀態Published - 1 一月 2007

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