期刊
CHEMPHYSCHEM
卷 16, 期 12, 页码 2602-2608出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201500337
关键词
gold; interfaces; nanoparticles; photoelectron spectroscopy; semiconductors
资金
- European Commission [263073]
- Helmholtz Energy Alliance Hybrid Photovoltaics
The interaction of gold nanoparticles (AuNPs) with prototypical organic semiconductors used in optoelectronics, namely, tris(8-hydroxyquinoline)aluminium (Alq(3)) and 4,4-bis[N-(1-naphthyl)-N-phenylamino]diphenyl (-NPD), is investigated in situ by X-ray photoelectron spectroscopy (XPS). These AuNPs-on-molecule experiments are compared with the reversed molecule-on-Au cases. The molecules-on-Au systems show only weak interactions, and the evolution of the XP spectra is dominated by final-state effects. In contrast, in the AuNPs-on-molecules cases, both initial-state effects and final-state effects occur. Spectral features arising for both molecules and metal indicate charge transfer and the formation of organometallic complexes (initial-state effects). The energy shift in the metal emission underlines the size-induced nanometric nature of the molecule/Au interaction (final-state effects). Consequently, the chemical interaction between metals and organic semiconductors likely depends strongly on the deposition sequence in general.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据