Fullerene Van der Waals Oligomers as Electron Traps
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- 作者：Tatyana E. Shubina ; Dmitry I. Sharapa ; Christina Schubert ; Dirk Zahn ; Marcus Halik ; Paul A. Keller ; Stephen G. Pyne ; Sreenu Jennepalli ; Dirk M. Guldi ; Timothy Clark
- 刊名：Journal of the American Chemical Society
- 出版年：2014
- 出版时间：August 6, 2014
- 年：2014
- 卷：136
- 期：31
- 页码：10890-10893
- 全文大小：308K
- ISSN：1520-5126
文摘
Density functional theory calculations indicate that van der Waals fullerene dimers and larger oligomers can form interstitial electron traps in which the electrons are even more strongly bound than in isolated fullerene radical anions. The fullerenes behave like 鈥渟uper atoms鈥? and the interstitial electron traps represent one-electron intermolecular 蟽-bonds. Spectroelectrochemical measurements on a bis-fullerene-substituted peptide provide experimental support. The proposed deep electron traps are relevant for all organic electronics applications in which non-covalently linked fullerenes in van der Waals contact with one another serve as n-type semiconductors.