Graphene photoconductors fabricated on the substrates with different resistivity

Lukasz Ruta; Janusz Wozny; Zbigniew Lisik; Jacek Podgorski; Jozef Piotrowski; Jaroslaw Pawluczyk; Dawid Stepien; Klaudia Zeranska

doi:10.1117/12.2260493

22 December 2016 Graphene photoconductors fabricated on the substrates with different resistivity

Lukasz Ruta, Janusz Wozny, Zbigniew Lisik, Jacek Podgorski, Jozef Piotrowski, Jaroslaw Pawluczyk, Dawid Stepien, Klaudia Zeranska

Author Affiliations +

Proceedings Volume 10175, Electron Technology Conference 2016; 101751B (2016) https://doi.org/10.1117/12.2260493
Event: Electron Technology Conference ELTE 2016, 2016, Wisla, Poland

Abstract

In this paper, the results of the initial work on determining the photoelectric properties of graphene detector operating in a photoconductive mode are presented. Graphene is considered as a material for uncooled fast detectors. The investigation has been done by electrical and optical characterization. Two values of substrate resistivity have been used in the project – below 1 Ωcm and higher than 1.6 kΩcm. Measurements of detectors response to short, strong light pulses were conducted. Presented studies show that the use of high resistivity substrates is necessary to prevent capacitive shorting of the signal to the substrate, causing signal losses and increasing response time.

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Lukasz Ruta, Janusz Wozny, Zbigniew Lisik, Jacek Podgorski, Jozef Piotrowski, Jaroslaw Pawluczyk, Dawid Stepien, and Klaudia Zeranska "Graphene photoconductors fabricated on the substrates with different resistivity ", Proc. SPIE 10175, Electron Technology Conference 2016, 101751B (22 December 2016); https://doi.org/10.1117/12.2260493

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