• 文献标题:   Capacitance-Voltage (C-V ) Characterization of Graphene-Silicon Heterojunction Photodiodes
  • 文献类型:   Article
  • 作  者:   RIAZIMEHR S, BELETE M, KATARIA S, ENGSTROM O, LEMME MC
  • 作者关键词:   capacitor, graphene, richardson constant, schottky barrier height, schottky diode
  • 出版物名称:   ADVANCED OPTICAL MATERIALS
  • ISSN:   2195-1071
  • 通讯作者地址:   Rhein Westfal TH Aachen
  • 被引频次:   0
  • DOI:   10.1002/adom.202000169 EA MAY 2020
  • 出版年:   2020

▎ 摘  要

Heterostructures of 2D and 3D materials form efficient devices for utilizing the properties of both classes of materials. Graphene/silicon (G/Si) Schottky diodes have been studied extensively with respect to their optoelectronic properties. Here, a method to analyze measured capacitance-voltage (C-V) data of G/Si Schottky diodes connected in parallel with G/silicon dioxide/Si (GIS) capacitors is introduced. The accurate extraction of the built-in potential (phi(bi)) and the Schottky barrier height (SBH) from the measurement data independent of the Richardson constant is also demonstrated.