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GaAs Microisland Anodes Protected by Amorphous TiO 2 Films Mitigate Corrosion Spreading During Water Oxidation in Alkaline Electrolytes

Journal Article · · ACS Energy Letters
 [1];  [2];  [2];  [3];  [2];  [2];  [3];  [4];  [5]
  1. Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, California 91125, United States; OSTI
  2. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
  3. Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, California 91125, United States
  4. Beckman Institute Molecular Materials Resource Center, California Institute of Technology, Pasadena, California 91125, United States
  5. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States; Beckman Institute Molecular Materials Resource Center, California Institute of Technology, Pasadena, California 91125, United States
+ Show Author Affiliations

Not provided.

Research Organization:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0004993; SC0022087
OSTI ID:
1978333
Journal Information:
ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 10 Vol. 6; ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English

References (15)

Electrolytic decomposition and photodecomposition of compound semiconductors in contact with electrolytes journal July 1978
Defect-Tolerant TiO 2 -Coated and Discretized Photoanodes for >600 h of Stable Photoelectrochemical Water Oxidation journal December 2020
Amorphous TiO2 coatings stabilize Si, GaAs, and GaP photoanodes for efficient water oxidation journal May 2014
Failure modes of protection layers produced by atomic layer deposition of amorphous TiO 2 on GaAs anodes journal January 2020
A monolithically integrated, intrinsically safe, 10% efficient, solar-driven water-splitting system based on active, stable earth-abundant electrocatalysts in conjunction with tandem III–V light absorbers protected by amorphous TiO 2 films journal January 2015
An experimental and modeling/simulation-based evaluation of the efficiency and operational performance characteristics of an integrated, membrane-free, neutral pH solar-driven water-splitting system journal January 2014
Strategies for stable water splitting via protected photoelectrodes journal January 2017
Enhanced stability of silicon for photoelectrochemical water oxidation through self-healing enabled by an alkaline protective electrolyte journal January 2020
Metastable Intermediates in Amorphous Titanium Oxide: A Hidden Role Leading to Ultra-Stable Photoanode Protection journal July 2018
Sputtered NiO x Films for Stabilization of p + n-InP Photoanodes for Solar-Driven Water Oxidation journal March 2015
Insight into the Degradation Mechanisms of Atomic Layer Deposited TiO 2 as Photoanode Protective Layer journal July 2019
Primary Corrosion Processes for Polymer-Embedded Free-Standing or Substrate-Supported Silicon Microwire Arrays in Aqueous Alkaline Electrolytes journal January 2021
Corrosion of III–V compounds; a comparative study of GaAs and InP journal November 1991
Stabilization of Si microwire arrays for solar-driven H 2 O oxidation to O 2 (g) in 1.0 M KOH(aq) using conformal coatings of amorphous TiO 2 journal January 2015
First order Raman effect in III–V compounds journal September 1966

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