Sensitization of Perovskite Strontium Stannate SrSnO3 towards Visible-Light Absorption by Doping

被引：15

作者：

Chen, Hungru ^{[1
]}

Umezawa, Naoto ^{[1
,2
,3
]}

机构：

[1] Natl Inst Mat Sci, Environm Remediat Mat Unit, Tsukuba, Ibaraki 3050044, Japan

[2] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

[3] Tianjin Univ, Sch Mat Sci & Engn, TU NIMS Joint Res Ctr, Tianjin 300072, Peoples R China

来源：

INTERNATIONAL JOURNAL OF PHOTOENERGY | 2014年 / 2014卷

基金：

日本科学技术振兴机构;

关键词：

INORGANIC MATERIALS;

D O I：

10.1155/2014/643532

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：

Perovskite strontium stannate SrSnO3 is a promising photocatalyst. However, its band gap is too large for efficient solar energy conversion. In order to sensitize SrSnO3 toward visible-light activities, the effects of doping with various selected cations and anions are investigated by using hybrid density functional calculations. Results show that doping can result in dopant level to conduction band transitions which lie lower in energy compared to the original band gap transition. Therefore, it is expected that doping SrSnO3 can induce visible-light absorption.

引用

页数：3

共 18 条

[1] SPECTROSCOPIC PROPERTIES OF SEMICONDUCTOR CRYSTALS WITH DIRECT FORBIDDEN ENERGY-GAP
AGEKYAN, VT
[J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1977, 43 (01): : 11 - 42
[2] PROJECTOR AUGMENTED-WAVE METHOD
BLOCHL, PE
[J]. PHYSICAL REVIEW B, 1994, 50 (24): : 17953 - 17979
[3] SrSnO3 nanostructures:: Synthesis, characterization, and photocatalytic properties
Chen, Di
Ye, Jinhua
[J]. CHEMISTRY OF MATERIALS, 2007, 19 (18) : 4585 - 4591
[4] GOODENOUGH JB, 1980, SURF SCI, V101, P531, DOI 10.1016/0039-6028(80)90647-0
[5] Structure of the n=2 and n=∞ member of the Ruddlesden-Popper series, Srn+1SnnO3n+1
Green, MA
Prassides, K
Day, P
Neumann, DA
[J]. INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 2000, 2 (01): : 35 - 41
[6] Hybrid functionals based on a screened Coulomb potential
Heyd, J
Scuseria, GE
Ernzerhof, M
[J]. JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (18) : 8207 - 8215
[7] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS
HOFFMANN, MR
MARTIN, ST
CHOI, WY
BAHNEMANN, DW
[J]. CHEMICAL REVIEWS, 1995, 95 (01) : 69 - 96
[8] Rh-Doped SrTiO3 Photocatalyst Electrode Showing Cathodic Photocurrent for Water Splitting under Visible-Light Irradiation
Iwashina, Katsuya
Kudo, Akihiko
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (34) : 13272 - 13275
[9] Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
Kresse, G
Furthmuller, J
[J]. PHYSICAL REVIEW B, 1996, 54 (16): : 11169 - 11186
[10] TRANSITION-METAL DOPANTS FOR EXTENDING THE RESPONSE OF TITANATE PHOTOELECTROLYSIS ANODES
MARUSKA, HP
GHOSH, AK
[J]. SOLAR ENERGY MATERIALS, 1979, 1 (3-4): : 237 - 247

← 1 2 →