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Electronic Structure of α-sexithiophene Ultrathin Films Grown On

Electronic Structure of α-sexithiophene Ultrathin Films Grown On

Shinya Ohno, Hiroya Tanaka, Kazuma Tanaka, Kazutoshi Takahashi, Masatoshi Tanaka

Phys Chem Chem Phys. 2018 Jan 3;20(2):1114-1126.

PMID: 29239429

Abstract:

We investigated the electronic states of α-sexithiophene (α-6T) on by means of angle-resolved photoelectron spectroscopy using synchrotron radiation. The characteristic features of π states are observed in the valence region. The increase in the population of the S1 band, assigned to the surface state of , upon deposition of α-6T was measured and the change in the electron density was evaluated. The band diagram was constructed based on the measurement of the HOMO level and work function. The work function was found to change with the α-6T thickness in a characteristic manner. We constructed a model of the electron transfer at each growth stage based on the core levels of the substrate (Si 2p, Ag 3d) and α-6T molecule (C 1s, S 2p), as well as the valence state and work function change.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP88493554	α-Sexithiophene		88493-55-4	Price

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