中国物理B ›› 2020, Vol. 29 ›› Issue (6): 64207-064207.doi: 10.1088/1674-1056/ab836f

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Inhibiting radiative recombination rate to enhance quantum yields in a quantum photocell

Jing-Yi Chen(陈镜伊), Shun-Cai Zhao(赵顺才)   

  1. Department of Physics, Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
  • 收稿日期:2019-12-29 修回日期:2020-02-24 出版日期:2020-06-05 发布日期:2020-06-05
  • 通讯作者: Shun-Cai Zhao E-mail:zhaosc@kust.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61565008 and 61205205) and the General Program of Yunnan Applied Basic Research Project, China (Grant No. 2016FB009).

Inhibiting radiative recombination rate to enhance quantum yields in a quantum photocell

Jing-Yi Chen(陈镜伊), Shun-Cai Zhao(赵顺才)   

  1. Department of Physics, Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
  • Received:2019-12-29 Revised:2020-02-24 Online:2020-06-05 Published:2020-06-05
  • Contact: Shun-Cai Zhao E-mail:zhaosc@kust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61565008 and 61205205) and the General Program of Yunnan Applied Basic Research Project, China (Grant No. 2016FB009).

摘要: Inhibiting the radiative radiation is an efficient approach to enhance quantum yields in a solar sell. This work carries out the inhibition of radiative recombination rate (RRR) in a quantum photocell with two coupled donors. We perform explicit calculations of the transition rates, energy gaps and the absorbed solar wavelength-dependent RRR, and find that two different regimes play the crucial roles in inhibiting RRR. One is the quantum coherence generated from two different transition channels, the other includes the absorbed photon wavelength and gaps between the donor and acceptor in this proposed photocell model. The results imply that there may be some efficient ways to enhance the photoelectron conversion compared to the classic solar cell.

关键词: radiation recombination rate, photoelectric conversion efficiency, quantum photocell

Abstract: Inhibiting the radiative radiation is an efficient approach to enhance quantum yields in a solar sell. This work carries out the inhibition of radiative recombination rate (RRR) in a quantum photocell with two coupled donors. We perform explicit calculations of the transition rates, energy gaps and the absorbed solar wavelength-dependent RRR, and find that two different regimes play the crucial roles in inhibiting RRR. One is the quantum coherence generated from two different transition channels, the other includes the absorbed photon wavelength and gaps between the donor and acceptor in this proposed photocell model. The results imply that there may be some efficient ways to enhance the photoelectron conversion compared to the classic solar cell.

Key words: radiation recombination rate, photoelectric conversion efficiency, quantum photocell

中图分类号:  (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

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