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Colorimetric Screening for High-Throughput Discovery of Light Absorbers

Mitrovic, Slobodan and Soedarmadji, Edwin and Newhouse, Paul F. and Suram, Santosh K. and Haber, Joel A. and Jin, Jian and Gregoire, John M. (2015) Colorimetric Screening for High-Throughput Discovery of Light Absorbers. ACS Combinatorial Science, 17 (3). pp. 176-181. ISSN 2156-8952. doi:10.1021/co500151u.

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High-throughput screening is a powerful approach for identifying new functional materials in unexplored material spaces. With library synthesis capable of producing 10^5 to 10^6 samples per day, methods for material screening at rates greater than 1 Hz must be developed. For the discovery of new solar light absorbers, this throughput cannot be attained using standard instrumentation. Screening certain properties, such as the bandgap, are of interest only for phase pure materials, which comprise a small fraction of the samples in a typical solid-state material library. We demonstrate the utility of colorimetric screening based on processing photoscanned images of combinatorial libraries to quickly identify distinct phase regions, isolate samples with desired bandgap, and qualitatively identify samples that are suitable for complementary measurements. Using multiple quaternary oxide libraries containing thousands of materials, we compare colorimetric screening and UV–vis spectroscopy results, demonstrating successful identification of compounds with bandgap suitable for solar applications.

Item Type:Article
Related URLs:
URLURL TypeDescription Information
Mitrovic, Slobodan0000-0001-8913-8505
Newhouse, Paul F.0000-0003-2032-3010
Suram, Santosh K.0000-0001-8170-2685
Haber, Joel A.0000-0001-7847-5506
Gregoire, John M.0000-0002-2863-5265
Additional Information:© 2014 American Chemical Society. Received: October 2, 2014; revised: December 9, 2014. Published: December 30, 2014. The authors thank Ryan J. R. Jones for assistance with the experiments. This manuscript is based upon work performed by the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub, supported through the Office of Science of the U.S. Department of Energy (award no. DE-SC0004993).
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0004993
Subject Keywords:high-throughput; colorimetry; light absorbers; solar fuels
Issue or Number:3
Record Number:CaltechAUTHORS:20150120-090415724
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Official Citation:Colorimetric Screening for High-Throughput Discovery of Light Absorbers Slobodan Mitrovic, Edwin Soedarmadji, Paul F. Newhouse, Santosh K. Suram, Joel A. Haber, Jian Jin, and John M. Gregoire ACS Combinatorial Science 2015 17 (3), 176-181 DOI: 10.1021/co500151u
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53860
Deposited On:20 Jan 2015 19:12
Last Modified:10 Nov 2021 20:08

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