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- W3080490572 abstract "An internal photoemission-based silicon photodetector detects light below the silicon bandgap at room temperature and can exhibit spectrally broad behavior, making it potentially suited to meet the need for a near-infrared pure Si photodetector. In this work, the implementation of a thin Au insertion layer into an ITO/n-Si Schottky photodetector can profoundly affect the barrier height and significantly improve the device performance. By fabricating a nanoscale thin Au layer and an ITO electrode on a silicon substrate, we achieve a well-behaved ITO/Au/n-Si Schottky diode with a record dark current density of <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline id=m1> <mml:mrow> <mml:mn>3.7</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mrow> <mml:mn>10</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>7</mml:mn> </mml:mrow> </mml:msup> <mml:mtext> </mml:mtext> <mml:mi mathvariant=normal>A</mml:mi> <mml:mo>/</mml:mo> <mml:msup> <mml:mrow> <mml:mi>cm</mml:mi> </mml:mrow> <mml:mrow> <mml:mn>2</mml:mn> </mml:mrow> </mml:msup> </mml:mrow> </mml:math> at <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline id=m2> <mml:mrow> <mml:mo form=prefix>−</mml:mo> <mml:mn>1</mml:mn> <mml:mtext> </mml:mtext> <mml:mi mathvariant=normal>V</mml:mi> </mml:mrow> </mml:math> and a high rectification ratio of <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline id=m3> <mml:mrow> <mml:mn>1.5</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mn>8</mml:mn> </mml:msup> </mml:mrow> </mml:math> at <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline id=m4> <mml:mrow> <mml:mo form=prefix>±</mml:mo> <mml:mn>1</mml:mn> <mml:mtext> </mml:mtext> <mml:mi mathvariant=normal>V</mml:mi> </mml:mrow> </mml:math> . Furthermore, the responsivity has been obviously improved without sacrificing the dark current performance of the device by decreasing the Au thickness. Such a silicon-based photodetector with an enhanced performance could be a promising strategy for the realization of a monolithic integrated pure silicon photodetector in optical communication." @default.
- W3080490572 created "2020-09-01" @default.
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- W3080490572 date "2020-10-09" @default.
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- W3080490572 title "Hybrid nano-scale Au with ITO structure for a high-performance near-infrared silicon-based photodetector with ultralow dark current" @default.
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- W3080490572 doi "https://doi.org/10.1364/prj.398450" @default.
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