A First-Principles Study on Electron Donor and Acceptor Molecules Adsorbed on Phosphorene
A First-Principles Study on Electron Donor and Acceptor Molecules Adsorbed on Phosphorene
复制标题
磷烯上吸附电子供体和受体分子的第一性原理研究
DOI:
10.1021/jp5116564
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发表时间:
2015-01
影响因子:
3.7
通讯作者:
Yang Jinlong
中科院分区:
文献类型:
--
作者:
Zhang Ruiqi;Li Bin;Yang Jinlong
Density functional theory calculations have been carried out to investigate single-layer phosphorene functionalized with two kinds of organic molecules, i.e., an electrophilic molecule tetracyano-p-quinodimethane (TCNQ) as electron acceptor and a nucleophilic molecule tetrathiafulvalene (TTF) as electron donor. The TCNQ molecule introduces shallow acceptor states in the gap of phosphorene close to the valence band edge, which makes the doped system become a p-type semiconductor. However, when the TTF molecule is adsorbed on the phosphorene, the occupied molecular states introduced into the gap are of deep donor states so that effective n-doping for transport cannot be realized. This disadvantageous situation can be amended by applying an external out-of-plane electric field with direction from phosphorene to TTF, or an in-plane tensile strain, or their combination, under which the conduction band edge of the phosphorene moves closer to the TTF-derived donor states, and then the TTF-adsorbed phosphorene sy...
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影响因子:
3
作者:
Grimme, Stefan
通讯作者:
Grimme, Stefan
影响因子:
3.7
作者:
Tang, Qing;Zhou, Zhen;Chen, Zhongfang
通讯作者:
Chen, Zhongfang
影响因子:
3.7
作者:
Zacharia, R;Ulbricht, H;Hertel, T
通讯作者:
Hertel, T
DOI:
10.1063/1.3226572
发表时间:
2009-09
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Shaobin Tang;Z. Cao
通讯作者:
Shaobin Tang;Z. Cao
影响因子:
5.7
作者:
D. Kilin;D. Micha
通讯作者:
D. Kilin;D. Micha