New visible light absorbing materials for solar fuels, Ga(Sb x)N1-x

Swathi Sunkara; Venkat Kalyan Vendra; Jacek Bogdan Jasinski; Todd Deutsch; Antonis N. Andriotis; Krishna Rajan; Madhu Menon; Mahendra Sunkara

doi:10.1002/adma.201305083

New visible light absorbing materials for solar fuels, Ga(Sb _x)N_1-x

Swathi Sunkara
, Venkat Kalyan Vendra
, Jacek Bogdan Jasinski
, Todd Deutsch
, Antonis N. Andriotis
, Krishna Rajan
, Madhu Menon
, Mahendra Sunkara

Department of Materials Design and Innovation

University of Louisville
National Renewable Energy Laboratory
Institute of Electronic Structure and Laser
University of Kentucky

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

34 Scopus citations

Abstract

A novel visible-light-absorbing dilute alloy, Ga(Sb_x)N _1-x is synthesized by metal organic chemical vapor deposition (MOCVD) for solar hydrogen production. Significant bandgap reduction of GaN, from 3.4 eV to 1.8 eV, is observed, with a low (2%) incorporation of antimonide, and the lattice expansion is in agreement with our first-principles calculations. The band edges of Ga(Sb_x)N_1-x are found to straddle the water redox potentials showing excellent suitability for solar water splitting.

Original language	English
Pages (from-to)	2878-2882
Number of pages	5
Journal	Advanced Materials
Volume	26
Issue number	18
DOIs	https://doi.org/10.1002/adma.201305083
State	Published - May 14 2014

Keywords

density functional theory (DFT)
GaN alloys
photoelectrochemical water splitting
solar fuels

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title = "New visible light absorbing materials for solar fuels, Ga(Sb x)N1-x",

abstract = "A novel visible-light-absorbing dilute alloy, Ga(Sbx)N 1-x is synthesized by metal organic chemical vapor deposition (MOCVD) for solar hydrogen production. Significant bandgap reduction of GaN, from 3.4 eV to 1.8 eV, is observed, with a low (2\%) incorporation of antimonide, and the lattice expansion is in agreement with our first-principles calculations. The band edges of Ga(Sbx)N1-x are found to straddle the water redox potentials showing excellent suitability for solar water splitting.",

keywords = "density functional theory (DFT), GaN alloys, photoelectrochemical water splitting, solar fuels",

author = "Swathi Sunkara and Vendra, \{Venkat Kalyan\} and Jasinski, \{Jacek Bogdan\} and Todd Deutsch and Andriotis, \{Antonis N.\} and Krishna Rajan and Madhu Menon and Mahendra Sunkara",

year = "2014",

month = may,

day = "14",

doi = "10.1002/adma.201305083",

language = "English",

volume = "26",

pages = "2878--2882",

journal = "Advanced Materials",

issn = "0935-9648",

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TY - JOUR

T1 - New visible light absorbing materials for solar fuels, Ga(Sb x)N1-x

AU - Sunkara, Swathi

AU - Vendra, Venkat Kalyan

AU - Jasinski, Jacek Bogdan

AU - Deutsch, Todd

AU - Andriotis, Antonis N.

AU - Rajan, Krishna

AU - Menon, Madhu

AU - Sunkara, Mahendra

PY - 2014/5/14

Y1 - 2014/5/14

N2 - A novel visible-light-absorbing dilute alloy, Ga(Sbx)N 1-x is synthesized by metal organic chemical vapor deposition (MOCVD) for solar hydrogen production. Significant bandgap reduction of GaN, from 3.4 eV to 1.8 eV, is observed, with a low (2%) incorporation of antimonide, and the lattice expansion is in agreement with our first-principles calculations. The band edges of Ga(Sbx)N1-x are found to straddle the water redox potentials showing excellent suitability for solar water splitting.

AB - A novel visible-light-absorbing dilute alloy, Ga(Sbx)N 1-x is synthesized by metal organic chemical vapor deposition (MOCVD) for solar hydrogen production. Significant bandgap reduction of GaN, from 3.4 eV to 1.8 eV, is observed, with a low (2%) incorporation of antimonide, and the lattice expansion is in agreement with our first-principles calculations. The band edges of Ga(Sbx)N1-x are found to straddle the water redox potentials showing excellent suitability for solar water splitting.

KW - density functional theory (DFT)

KW - GaN alloys

KW - photoelectrochemical water splitting

KW - solar fuels

UR - https://www.scopus.com/pages/publications/84900000678

U2 - 10.1002/adma.201305083

DO - 10.1002/adma.201305083

M3 - Article

AN - SCOPUS:84900000678

SN - 0935-9648

VL - 26

SP - 2878

EP - 2882

JO - Advanced Materials

JF - Advanced Materials

IS - 18

ER -

New visible light absorbing materials for solar fuels, Ga(Sb _x)N_1-x

Abstract

Keywords

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