Theoretical investigation of three dimensional p-n junctions for improvement of silicon solar cell efficiency

  • Jing Shi
  • , Jinchuan You
  • , Lianwei Wang*
  • , Paul K. Chu
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Silicon is one the most extensively used photovoltaic materials because of its relatively low cost and well established fabrication processes. Therefore, development of technologies that can improve the energy efficiency of silicon solar cells is important. In this report, a novel solar cell structure based on 3D (three-dimensional) macroporous silicon p-n junctions and the corresponding mathematical model are proposed. The structure and electrical performance of the silicon solar cell with the 3D p-n junction are analyzed. Significantly increased efficiency can be achieved due to the better carrier collection and light absorption. Our results reveal improved photocurrent and other characteristics, thereby demonstrating the validity of the improved solar cell structure.

Original languageEnglish
Title of host publicationPhotonics and Optoelectronics Meetings (POEM) 2009 - Solar Cells, Solid State Lighting, and Information Display Technologies
DOIs
StatePublished - 2009
EventPhotonics and Optoelectronics Meetings (POEM) 2009 - Solar Cells, Solid State Lighting, and Information Display Technologies - Wuhan, China
Duration: 8 Aug 200910 Aug 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7518
ISSN (Print)0277-786X

Conference

ConferencePhotonics and Optoelectronics Meetings (POEM) 2009 - Solar Cells, Solid State Lighting, and Information Display Technologies
Country/TerritoryChina
CityWuhan
Period8/08/0910/08/09

Keywords

  • 3D P-N junction
  • Efficiency
  • Secondary absorption
  • Solar cell

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