• 文献标题:   Exceeding the limit of plasmonic light trapping in textured screen-printed solar cells using Al nanoparticles and wrinkle-like graphene sheets
  • 文献类型:   Article
  • 作  者:   CHEN X, JIA BH, ZHANG YA, GU M
  • 作者关键词:   al nanoparticle, plasmonic light trapping, screenprinted solar cell, wrinklelike graphene sheet
  • 出版物名称:   LIGHTSCIENCE APPLICATIONS
  • ISSN:   2047-7538
  • 通讯作者地址:   Swinburne Univ Technol
  • 被引频次:   185
  • DOI:   10.1038/lsa.2013.48
  • 出版年:   2013

▎ 摘  要

The solar cell market is predominantly based on textured screen-printed solar cells. Due to parasitic absorption in nanostructures, using plasmonic processes to obtain an enhancement that exceeds 2.5% of the short-circuit photocurrent density is challenging. In this paper, a 7.2% enhancement in the photocurrent density can be achieved through the integration of plasmonic Al nanoparticles and wrinkle-like graphene sheets. For the first time, we experimentally achieve Al nanoparticle-enhanced solar cells. An innovative thermal evaporation method is proposed to fabricate low-coverage Al nanoparticle arrays on solar cells. Due to the ultraviolet (UV) plasmon resonance of Al nanoparticles, the performance enhancement of the solar cells is significantly greater than that from Ag nanoparticles. Subsequently, we deposit wrinkle-like graphene sheets over the Al nanoparticle-enhanced solar cells. Compared with planar graphene sheets, the bend carbon layer also exhibits a broadband light-trapping effect. Our results exceed the limit of plasmonic light trapping in textured screen-printed silicon solar cells.