Charge Transfer States in Organic Photovoltaic Materials

ZHENG Zilong; ZHOU Rongkun; HU Shuangyuan; WANG Ruzhi; ZHANG Yongzhe

doi:10.11936/bjutxb2020040012

Journal of Beijing University of Technology > 2020 > 46(10): 1167-1179. > DOI: 10.11936/bjutxb2020040012

ZHENG Zilong, ZHOU Rongkun, HU Shuangyuan, WANG Ruzhi, ZHANG Yongzhe. Charge Transfer States in Organic Photovoltaic Materials[J]. Journal of Beijing University of Technology, 2020, 46(10): 1167-1179. DOI: 10.11936/bjutxb2020040012

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Charge Transfer States in Organic Photovoltaic Materials

ZHENG Zilong^{1, 2, 3,},
ZHOU Rongkun^{1, 2, 3},
HU Shuangyuan^{1, 2, 3},
WANG Ruzhi^{1, 2, 3},
ZHANG Yongzhe^{1, 2, 3}

1.
College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
2.
Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing 100124, China
3.
Beijing Key Laboratory of Microstructure and Property of Solids, Beijing 100124, China

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Received Date: April 28, 2020
Available Online: August 03, 2022
Published Date: October 09, 2020

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Abstract

Abstract

The sector of organic solar cells (OSCs) is developing very rapidly. The charge-transfer (CT) states, formed at the interface between electron-donor (D) and electron-acceptor (A) materials, play a significant role in the photoelectric physical processes, such as exciton dissociation, charge separation and recombination. Since the introduction of the D-A mixed heterojunction in the active layer, the CT states have been focused by many experimental and theoretical research groups. Following the previous works, the characteristics of CT states were briefly summarized, and the impact on the properties of CT states and the processes of radiative and non-radiative recombination was descibed from morphology configuration, electronic polarization and delocalization at the D-A interface. In addition, the micro-mechanism of photoelectric conversion in the active layer and the challenges faced in the design of novel materials was outlined.

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References (91)

References

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