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Title: Predicting a quaternary tungsten oxide for sustainable photovoltaic application by density functional theory

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4936929· OSTI ID:1236148

A quaternary oxide, CuSnW2O8 (CTTO), has been predicted by density functional theory (DFT) to be a suitable material for sustainable photovoltaic applications. CTTO possesses band gaps of 1.25 eV (indirect) and 1.37 eV (direct), which were evaluated using the hybrid functional (HSE06) as a post-DFT method. The hole mobility of CTTO was higher than that of silicon. Further, optical absorption calculations demonstrate that CTTO is a better absorber of sunlight than Cu2ZnSnS4 and CuInxGa1–xSe2 (x = 0.5). In addition, CTTO exhibits rigorous thermodynamic stability comparable to WO3, as investigated by different thermodynamic approaches such as bonding cohesion, fragmentation tendency, and chemical potential analysis. Chemical potential analysis further revealed that CTTO can be synthesized at flexible experimental growth conditions, although the co-existence of at least one secondary phase is likely. Lastly, like other Cu-based compounds, the formation of Cu vacancies is highly probable, even at Cu-rich growth condition, which could introduce p-type activity in CTTO.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1236148
Alternate ID(s):
OSTI ID: 1228436
Report Number(s):
NREL/JA-5K00-64682; APPLAB
Journal Information:
Applied Physics Letters, Vol. 107, Issue 23; Related Information: Applied Physics Letters; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

References (20)

Device Characteristics of CZTSSe Thin-Film Solar Cells with 12.6% Efficiency journal November 2013
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells journal March 1961
Combinatorial Approach to Identification of Catalysts for the Photoelectrolysis of Water journal August 2005
Combinatorial Discovery and Optimization of a Complex Oxide with Water Photoelectrolysis Activity journal April 2008
Electronic, Energetic, and Chemical Effects of Intrinsic Defects and Fe-Doping of CoAl 2 O 4 : A DFT+ U Study journal July 2008
Electronic structure and phase stability of MgO, ZnO, CdO, and related ternary alloys journal June 2008
Rules of Structure Formation for the Homologous In M O 3 ( ZnO ) n Compounds journal June 2008
Predicting a new photocatalyst and its electronic properties by density functional theory journal October 2013
Growth, characterization, and high-pressure optical studies of CuWO 4 journal December 2008
Photophysical, Photoelectrochemical, and Photocatalytic Properties of Novel SnWO 4 Oxide Semiconductors with Narrow Band Gaps journal May 2009
Photocatalytic Generation of Syngas Using Combustion-Synthesized Silver Bismuth Tungstate journal March 2012
Understanding the thermodynamic pathways of SnO-to-SnO x phase transition journal January 2016
Data Mined Ionic Substitutions for the Discovery of New Compounds journal January 2011
A high-throughput infrastructure for density functional theory calculations journal June 2011
Bilbao Crystallographic Server: I. Databases and crystallographic computing programs journal January 2006
Bilbao Crystallographic Server. II. Representations of crystallographic point groups and space groups journal March 2006
Brillouin-zone database on the Bilbao Crystallographic Server journal February 2014
Intrinsic point defects and complexes in the quaternary kesterite semiconductor Cu 2 ZnSnS 4 journal June 2010
Theoretical limits on the stability of single-phase kesterite-Cu2ZnSnS4 journal January 2015
Classification of Lattice Defects in the Kesterite Cu 2 ZnSnS 4 and Cu 2 ZnSnSe 4 Earth-Abundant Solar Cell Absorbers journal February 2013