Photocurrent enhancement of wide bandgap Bi2O3 by Bi2S3 over layers

被引：43

作者：

Sirimanne, PM

Takahashi, K

Sonoyama, N

Sakata, T

机构：

[1] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Engn, Dept Elect Chem, Midori Ku, Yokohama, Kanagawa 227, Japan

[2] Toyota Technol Inst, Semicond Lab, Tempa Ku, Nagoya, Aichi 4688511, Japan

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2002年 / 73卷 / 02期

关键词：

Bi2O3; Bi2S3; sulfurization; semiconductor sensitization;

D O I：

10.1016/S0927-0248(01)00123-4

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Sintered Bi2O3 pellets exhibited insulating properties at room temperature. Partial reduction of sintered Bi2O3 pellets increased the conductivity. Reduced Bi2O3 pellets exhibited n-type semiconductor properties. Microcrystals of Bi2S3 were formed on sintered Bi2O3 pellets by sulfurizing them in H,S atmosphere. The direct band-gap and indirect band-gap of Bi2S3 were evaluated as 1.2 and 0.4eV, respectively. A high incident photon to current conversion efficiency in the near IR region was observed on Bi2S3 Bi2O3 electrodes. Photocurrent generation of Bi2S3\Bi2O3 electrodes was explained from the viewpoint of semiconductor sensitization. The flat band potential of Bi2S3 was evaluated as -1.1 V vs. Ag1AgCl in aqueous polysulfide redox electrolyte (1 M OH-, 1 M S2-, 10(-2) M S). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：175 / 187

页数：13

共 19 条

[1] SEMICONDUCTOR SENSITIZATION BY RUS2 COLLOIDS ON TIO2 ELECTRODES [J].

ASHOKKUMAR, M ;

KUDO, A ;

SAITO, N ;

SAKATA, T .

CHEMICAL PHYSICS LETTERS, 1994, 229 (4-5) :383-388

[2] SEMICONDUCTOR LIQUID JUNCTION SOLAR-CELL BASED ON CHEMICALLY DEPOSITED BI2S3 THIN-FILM AND SOME SEMICONDUCTING PROPERTIES OF BISMUTH CHALCOGENIDES [J].

BHATTACHARYA, RN ;

PRAMANIK, P .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1982, 129 (02) :332-335

[3] ELECTRICAL AND OPTICAL PROPERTIES OF SOME M2V-BN3VI-B SEMICONDUCTORS [J].

BLACK, J ;

CONWELL, EM ;

SEIGLE, L ;

SPENCER, CW .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1957, 2 (03) :240-251

[4] SENSITIZATION OF TITANIUM-DIOXIDE AND STRONTIUM-TITANATE ELECTRODES BY RUTHENIUM(II) TRIS(2,2'-BIPYRIDINE-4,4'-DICARBOXYLIC ACID) AND ZINC TETRAKIS(4-CARBOXYPHENYL)PORPHYRIN - AN EVALUATION OF SENSITIZATION EFFICIENCY FOR COMPONENT PHOTOELECTRODES IN A MULTIPANEL DEVICE [J].

DABESTANI, R ;

BARD, AJ ;

CAMPION, A ;

FOX, MA ;

MALLOUK, TE ;

WEBBER, SE ;

WHITE, JM .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (07) :1872-1878

[5] SOME SEMICONDUCTING PROPERTIES OF BISMUTH TRISULFIDE [J].

GILDART, L ;

KLINE, JM ;

MATTOX, DM .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1961, 18 (04) :286-289

[6] DESCRIPTIONS OF OUTER D ELECTRONS IN THIOSPINELS [J].

GOODENOUGH, JB .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1969, 30 (02) :261-+

[7] CHARGE-TRANSFER PROCESSES IN COUPLED SEMICONDUCTOR SYSTEMS - PHOTOCHEMISTRY AND PHOTOELECTROCHEMISTRY OF THE COLLOIDAL CDS-ZNO SYSTEM [J].

HOTCHANDANI, S ;

KAMAT, PV .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (16) :6834-6839

[8] POLYMORPHISM OF BISMUTH SESQUIOXIDE .I. PURE BI2O3 [J].

LEVIN, EM ;

ROTH, RS .

JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION A-PHYSICS AND CHEMISTRY, 1964, A 68 (02) :189-+

[9] ELECTROCHEMICAL RECTIFICATION IN CDSE+TIO2 COUPLED SEMICONDUCTOR-FILMS [J].

LIU, D ;

KAMAT, PV .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 347 (1-2) :451-456

[10] SENSITIZATION IN PHOTOCHEMISTRY AND PHOTOVOLTAICS [J].

MCEVOY, AJ ;

GRATZEL, M .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1994, 32 (03) :221-227

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