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| |  | ||  /_   _//  / ____||   / _ \\  | \  / || 
| |/\| ||   -| ||-  / //---`'  / //\ \\ |  \/  || 
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|_// \_||  /_____//  \_____|| |_||  |_|||_|\/|_|| 
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Text this: Electrically tunable two-dimensional heterojunctions for miniaturized near-infrared spectrometers