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A light emitting diode based photoelectrochemical screener for distributed combinatorial materials discovery

Winkler, Gates R. and Winkler, Jay R. (2011) A light emitting diode based photoelectrochemical screener for distributed combinatorial materials discovery. Review of Scientific Instruments, 82 (11). Art. No. 114101. ISSN 0034-6748. http://resolver.caltech.edu/CaltechAUTHORS:20120113-131251359

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Abstract

Combinatorial approaches for targeted discovery of new materials require rapid screening systems to evaluate large numbers of new material compositions. High-throughput combinatorial materials discovery is a capital-intensive undertaking requiring sophisticated robotic sample preparation and rapid screening assays. A distributed approach to combinatorial materials discovery can achieve similar goals by increasing the breadth of participation and reducing the size of the capital investment. The discovery of new photoactive materials for solar fuels production demands a screening device to probe materials for electrochemical current production upon irradiation with visible light. We have developed a system that uses an array of pulsed light-emitting diodes (LEDs) synchronized with a two-electrode potentiostat that can measure the photoelectrochemical responses of combinatorial sample arrays deposited on conducting glass plates. Compared to raster scanning methods, this LED system trades spatial resolution for a substantial reduction in scan time.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.3657155DOIArticle
http://rsi.aip.org/resource/1/rsinak/v82/i11/p114101_s1PublisherArticle
http://link.aip.org/link/doi/10.1063/1.3657155PublisherArticle
ORCID:
AuthorORCID
Winkler, Jay R.0000-0002-4453-9716
Additional Information:© 2011 American Institute of Physics. Received 20 July 2011; accepted 6 October 2011; published online 2 November 2011. We thank Claire Drolen for preparation of the iron oxide test plate. This research was supported by the Caltech Center for Sustainable Energy Research (Gordon and Betty Moore Foundation) and the National Science Foundation Center for Chemical Innovation in Solar Fuels (CHE 0802907).
Group:CCI Solar Fuels
Funders:
Funding AgencyGrant Number
Caltech Center for Sustainable Energy Research (CCSER)UNSPECIFIED
NSFCHE-0802907
Subject Keywords:light emitting diodes, radiation effects, solar cell arrays
Classification Code:PACS: 88.40H-; 85.60.Jb
Record Number:CaltechAUTHORS:20120113-131251359
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120113-131251359
Official Citation:A light emitting diode based photoelectrochemical screener for distributed combinatorial materials discovery Gates R. Winkler and Jay R. Winkler Rev. Sci. Instrum. 82, 114101 (2011); doi:10.1063/1.3657155 (5 pages)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28794
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:13 Jan 2012 21:35
Last Modified:16 Sep 2017 02:30

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