A novel energy-dependent p-semiconductor-metal-n-semiconductor heterojunction for selectively steering charge flow in a Z-scheme photocatalyst

被引：8

作者：

Li, Xiyu ^{[1
]}

Eshete, Mesfin ^{[1
]}

Li, Xin ^{[1
]}

Xie, Tian ^{[2
]}

Zhang, Guozhen ^{[1
]}

Xie, Liyan ^{[1
]}

Jia, Chuanyi ^{[3
]}

Luo, Yi ^{[1
]}

Jiang, Jun ^{[1
]}

机构：

[1] USTC, Hefei Natl Lab Phys Sci Microscale, Sch Chem & Mat Sci, CAS Ctr Excellence Nanosci,CAS Key Lab Mech Behav, Hefei 230026, Anhui, Peoples R China

[2] Wengfu Grp, State Key Lab Efficient Utilizat Low Grade Phosph, Guiyang 550014, Guizhou, Peoples R China

[3] Guizhou Educ Univ, Inst Appl Phys, Guizhou Prov Key Lab Computat Nanomat Sci, Guiyang 550018, Guizhou, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2019年 / 7卷 / 25期

基金：

美国国家科学基金会;

关键词：

WATER; HYBRID; CATALYST; JUNCTION; GRADIENT; SHEETS; CU2O;

D O I：

10.1039/c9ta03482j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using first-principles methods, we proposed a p-m-n heterojunction as an efficient Z-scheme photocatalyst design with energy-dependent charge delivery, where the opposite band-bending trends at the p-m and m-n interfaces would enable the selective steering of low-energy charges from two semiconductors to the intermediate metal, while keeping the high-energy electrons and holes in the individual semiconductors for driving reduction and oxidation reactions separately.

引用

页码：15036 / 15041

页数：6

共 47 条

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