The modulation of g-C3N4 energy band structure by excitons capture and dissociation
The modulation of g-C3N4 energy band structure by excitons capture and dissociation
复制标题
激子捕获和解离对g-C3N4能带结构的调制
DOI:
10.1016/j.materresbull.2019.110685
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发表时间:
2020-02
影响因子:
5.4
通讯作者:
Ao Xia
中科院分区:
文献类型:
--
作者:
Dan Zhang;Guoqiang Tan;Min Wang;Bin Li;Mingyue Dang;Huijun Ren;Ao Xia
The nitrogen vacancy g-C3N4obtained by the thermal polymerization urea possessed the largest exciton binding energy, and the nitrogen vacancies would capture excitons and promote them to dissociate into the free electrons and the holes at energy disordered areas. The accumulation of numerous free electrons in the nitrogen vacancy g-C3N4led to raise its Fermi level, which meant that the conduction band potential of nitrogen vacancy g-C3N4would be more negative. Additionally, the enhancement of the confinement effect endowed it a more positive valence band potential. Eventually, it gave nitrogen vacancy g-C3N4the widest band gap (2.62 eV) and the strongest redox ability (ECB: -1.260 V, EVB: 1.360 V).
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影响因子:
4.6
作者:
Tongay, Sefaattin;Suh, Joonki;Ataca, Can;Fan, Wen;Luce, Alexander;Kang, Jeong Seuk;Liu, Jonathan;Ko, Changhyun;Raghunathanan, Rajamani;Zhou, Jian;Ogletree, Frank;Li, Jingbo;Grossman, Jeffrey C.;Wu, Junqiao
通讯作者:
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DOI:
10.1016/j.apcatb.2018.05.003
发表时间:
2018-11
期刊:
Applied Catalysis B: Environmental
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3.3
作者:
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