Efficiency Enhancement of Silicon Heterojunction Solar Cells via Photon Management Using Graphene Quantum Dot as Downconverters

Meng Lin Tsai, Wei Chen Tu, Libin Tang, Tzu Chiao Wei, Wan Rou Wei, Shu Ping Lau, Lih Juann Chen, Jr Hau He

研究成果: Article

70 引文 斯高帕斯(Scopus)

摘要

By employing graphene quantum dots (GQDs), we have achieved a high efficiency of 16.55% in n-type Si heterojunction solar cells. The efficiency enhancement is based on the photon downconversion phenomenon of GQDs to make more photons absorbed in the depletion region for effective carrier separation, leading to the enhanced photovoltaic effect. The short circuit current and the fill factor are increased from 35.31 to 37.47 mA/cm2 and 70.29% to 72.51%, respectively. The work demonstrated here holds the promise for incorporating graphene-based materials in commercially available solar devices for developing ultrahigh efficiency photovoltaic cells in the future.

原文English
頁(從 - 到)309-313
頁數5
期刊Nano letters
16
發行號1
DOIs
出版狀態Published - 2016 一月 13

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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