II.G.11 Joint Center for Artificial Photosynthesis: Corrosion Protection Schemes to Enable Durable Solar Water Splitting Devices enable the development of a new generation of robust Principal Investigator: Carl Koval integrated devices for efficient solar water splitting. California Institute of Technology, Pasadena, CA Abstract Team Members • Ian Sharp (
[email protected], Team Lead), Jinhui Yang, Fabrication of overall water splitting devices requires Yongjing Lin, Ali Javey, Joel Ager (Project Lead) the incorporation of all elements - catalysts, light absorbers, Lawrence Berkeley National Laboratory membranes, and interfacial layers - into an integrated system • Shu Hu, Michael Lichterman, Nate Lewis (Scientific in which all materials are stable under identical conditions. Director and Project Lead) Durability and compatibility of materials remain critical California Institute of Technology hurdles in the field. In addition to the discovery of new materials, a primary strategy for overcoming this limitation DOE Program Manager: Gail McLean is aimed at utilizing thin film surface coatings for preventing Phone: (301) 903-7807 corrosion of photoelectrodes, while also allowing efficient Email:
[email protected] charge transfer between the semiconductor light absorber and catalysts. Here, we present a series of case examples highlighting approaches for thin film corrosion protection Objectives that enable sustained operation of both photocathodes and photoanodes. Each of these examples represents a significant The mission of the Joint Center for Artificial technical advancement and provides complimentary insight Photosynthesis (JCAP) is to produce fundamental scientific into the important roles of interfacial energetics, physical discoveries and major technological breakthroughs to enable and chemical structure, photon management, and defect the development of energy-efficient, cost-effective, and engineering.