The news correspondents obtained a quote from the research, "In this paper we propose a process of wet etching of microtrenches that allows electrical isolation of individual solar cells with no damage to the sidewalls. Etching with bromine-methanol, the solution that is typically used for nonselective etching of III-V compounds, results in the formation of unwanted holes on the semiconductor surfaces. We investigate the origin of holes formation and discuss methods to overcome this effect. We present an implementation of the isolation step into a solar cell fabrication process flow."
According to the news reporters, the research concluded: "This improved fabrication process opens the way for improved die strength, yield, and reliability."
For more information on this research see: Isolation of III-V/Ge Multijunction Solar Cells by Wet Etching.
Our news journalists report that additional information may be obtained by contacting A. Turala,
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