Environmentally friendly ITO replacement?
Indium tin oxides are used on a range of appliances such as flat screen displays, etc. I am an environmental chemistry student and am worried about the environmental impact of the indium and tin once these computers, etc. are finished with and dumped. Isn't there a more environmentally friendly transparent conductive oxide that can replace these toxic metals?Anna R [last name deleted for privacy by Editor]
Hi, Anna. Tin must be among the safest of all metals. Indium not so much, I guess.
What other metals besides tin would you consider environmentally friendly as a starting point? I think I'd rule out precious metals because they are such an inducement to amateur recyclers, that using them would probably result in cherry-picking and spreading the remaining wastes everywhere.
Ted Mooney, P.E. RET
Pine Beach, New Jersey
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