4.6 Article

Intrinsic photocurrent characteristics of graphene photodetectors passivated with Al2O3

Journal

OPTICS EXPRESS
Volume 21, Issue 20, Pages 23391-23400

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OE.21.023391

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Funding

  1. inter-ER cooperation projects
  2. MOTIE/KIAT
  3. MOTIE, Korea [10039174]
  4. Korea Evaluation Institute of Industrial Technology (KEIT) [10039174] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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The intrinsic photo-response of chemical vapor deposited (CVD) graphene photodetectors were investigated after eliminating the influence of photodesorption using an atomic layer deposited (ALD) Al2O3 passivation layer. A general model describing the intrinsic photocurrent generation in a graphene is developed using the relationship between the device dimensions and the level of intrinsic photocurrent under UV illumination. (C) 2013 Optical Society of America

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