Stable N-CuInSe.sub.2 /iodide-iodine photoelectrochemical cell

Patent · Tue Jan 01 04:00:00 EST 1985

OSTI ID:865703

Cahen, David ^[1]; Chen, Yih W ^[2]

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1. Rehovot, IL
2. Lakewood, CO

In a photoelectrochemical solar cell, stable output and solar efficiency in excess of 10% are achieved with a photoanode of n-CuInSe.sub.2 electrode material and an iodine/iodide redox couple used in a liquid electrolyte. The photoanode is prepared by treating the electrode material by chemical etching, for example in Br.sub.2 /MeOH; heating the etched electrode material in air or oxygen; depositing a surface film coating of indium on the electrode material after the initial heating; and thereafter again heating the electrode material in air or oxygen to oxidize the indium. The electrolyte is treated by the addition of Cu.sup.+ or Cu.sup.2+ salts and In.sup.3+ salts.

• Research Organization: MIDWEST RESEARCH INSTITUTE
• DOE Contract Number: AC02-83CH10093
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4559282
• OSTI ID: 865703
• Country of Publication: United States
• Language: English

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/429/204/427/
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cu
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example
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