• 文献标题:   Solar cells with graphene and carbon nanotubes on silicon
  • 文献类型:   Article
  • 作  者:   LI ZR, ZHENG LQ, SAINI V, BOURDO S, DERVISHI E, BIRIS AS
  • 作者关键词:   photovoltaic device, singlewall carbon nanotube, graphene
  • 出版物名称:   JOURNAL OF EXPERIMENTAL NANOSCIENCE
  • ISSN:   1745-8080 EI 1745-8099
  • 通讯作者地址:   Univ Arkansas
  • 被引频次:   4
  • DOI:   10.1080/17458080.2011.572191
  • 出版年:   2013

▎ 摘  要

Graphene and carbon nanotubes (CNTs) represent attractive materials for photovoltaic (PV) devices due to their unique electronic and optical properties. Graphene and single-wall carbon nanotubes (SWNTs) layers can be directly configured as energy conversion materials to fabricate thin-film solar cells, serving as both photogeneration sites and charge carrier collecting/transport layers. SWNTs can be modified into either p-type conductor through chemical doping (like acidic purification) or n-type conductor through polymer functionalisation. The solar cells can be simply made of a semitransparent thin film of graphene (or SWNTs) deposited on a proper type of silicon substrate to create high-density Schottky (or p-n) junctions at the interface. The high aspect ratios and large surface area of these carbon nano-structured materials can benefit exciton dissociation and charge carrier transport thus improving the power conversion efficiency.