Preparation and Comparison of the Photoelectronic Properties of Sr2Nb2O7 and Ba0.5Sr0.5Nb2O6

J. Hormadaly; S. N. Subbarao; R. Kershaw; K. Dwight; A. Wold

doi:10.1016/0022-4596(80)90544-7

Preparation and Comparison of the Photoelectronic Properties of Sr₂Nb₂O₇ and Ba_0.5Sr_0.5Nb₂O₆

J. Hormadaly, S. N. Subbarao, R. Kershaw, K. Dwight, A. Wold

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The two alkaline earth niobates Sr₂Nb₂O₇ and Ba_0.5Sr_0.5Nb₂O₆ have been prepared, their electronic properties measured, and their photoresponses compared. The indirect band gap in Sr₂Nb₂O₇ is 3.86 eV compared with 3.38 eV for Ba_0.5Sr_0.5Nb₂O₆. Hence, photoanodes composed of Sr₂Nb₂O₇ respond to much less of the "white" light spectrum than those made from Ba_0.5Sr_0.5Nb₂O₆. Nevertheless, their electrical outputs at an anode potential of 0.8 eV with respect to SCE in 0.2 M sodium acetate under "white" xenon arc irradiation of 1.25 W/cm² are comparable.

Original language	English
Pages (from-to)	27-32
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	33
Issue number	1
DOIs	https://doi.org/10.1016/0022-4596(80)90544-7 https://doi.org/10.1016/0022-4596(80)90541-1
State	Published - Jun 1980
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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title = "Preparation and Comparison of the Photoelectronic Properties of Sr2Nb2O7 and Ba0.5Sr0.5Nb2O6",

abstract = "The two alkaline earth niobates Sr2Nb2O7 and Ba0.5Sr0.5Nb2O6 have been prepared, their electronic properties measured, and their photoresponses compared. The indirect band gap in Sr2Nb2O7 is 3.86 eV compared with 3.38 eV for Ba0.5Sr0.5Nb2O6. Hence, photoanodes composed of Sr2Nb2O7 respond to much less of the {"}white{"} light spectrum than those made from Ba0.5Sr0.5Nb2O6. Nevertheless, their electrical outputs at an anode potential of 0.8 eV with respect to SCE in 0.2 M sodium acetate under {"}white{"} xenon arc irradiation of 1.25 W/cm2 are comparable.",

author = "J. Hormadaly and Subbarao, {S. N.} and R. Kershaw and K. Dwight and A. Wold",

note = "Funding Information: The Office of Naval Research, Arlington, Virginia, supported the work of S. N. Subbarao and K. Dwiphl, Acknowledgment is made of the support of the S&r Energy Research Institute, Golden, Colarado, of J. Hormadaly. In addition, the authors would like to acknowledge the support of the Materials Research Laboratory Program at Brown University. The authors also wish to express their thanks to Dr. Lothar Brixner of E. I. DuPont de Nemours & Company, Wilmington, Delaware, for several helpful discussions.",

year = "1980",

month = jun,

doi = "10.1016/0022-4596(80)90544-7",

language = "English",

volume = "33",

pages = "27--32",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Preparation and Comparison of the Photoelectronic Properties of Sr2Nb2O7 and Ba0.5Sr0.5Nb2O6

AU - Hormadaly, J.

AU - Subbarao, S. N.

AU - Kershaw, R.

AU - Dwight, K.

AU - Wold, A.

N1 - Funding Information: The Office of Naval Research, Arlington, Virginia, supported the work of S. N. Subbarao and K. Dwiphl, Acknowledgment is made of the support of the S&r Energy Research Institute, Golden, Colarado, of J. Hormadaly. In addition, the authors would like to acknowledge the support of the Materials Research Laboratory Program at Brown University. The authors also wish to express their thanks to Dr. Lothar Brixner of E. I. DuPont de Nemours & Company, Wilmington, Delaware, for several helpful discussions.

PY - 1980/6

Y1 - 1980/6

N2 - The two alkaline earth niobates Sr2Nb2O7 and Ba0.5Sr0.5Nb2O6 have been prepared, their electronic properties measured, and their photoresponses compared. The indirect band gap in Sr2Nb2O7 is 3.86 eV compared with 3.38 eV for Ba0.5Sr0.5Nb2O6. Hence, photoanodes composed of Sr2Nb2O7 respond to much less of the "white" light spectrum than those made from Ba0.5Sr0.5Nb2O6. Nevertheless, their electrical outputs at an anode potential of 0.8 eV with respect to SCE in 0.2 M sodium acetate under "white" xenon arc irradiation of 1.25 W/cm2 are comparable.

AB - The two alkaline earth niobates Sr2Nb2O7 and Ba0.5Sr0.5Nb2O6 have been prepared, their electronic properties measured, and their photoresponses compared. The indirect band gap in Sr2Nb2O7 is 3.86 eV compared with 3.38 eV for Ba0.5Sr0.5Nb2O6. Hence, photoanodes composed of Sr2Nb2O7 respond to much less of the "white" light spectrum than those made from Ba0.5Sr0.5Nb2O6. Nevertheless, their electrical outputs at an anode potential of 0.8 eV with respect to SCE in 0.2 M sodium acetate under "white" xenon arc irradiation of 1.25 W/cm2 are comparable.

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SN - 0022-4596

VL - 33

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JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 1

ER -

Preparation and Comparison of the Photoelectronic Properties of Sr₂Nb₂O₇ and Ba_0.5Sr_0.5Nb₂O₆

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