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An optimal molecule-matching co-sensitization system for the improvement of photovoltaic performances of DSSCs.
Liu, Yongliang; Zhu, Shengbo; Li, Wei; Su, Yilin; Zhou, Hongwei; Chen, Ran; Chen, Weixing; Zhang, Wenzhi; Niu, Xiaoling; Chen, Xinbing; An, Zhongwei.
Afiliación
  • Liu Y; Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.
  • Zhu S; School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China. zhushengbo@xatu.edu.cn.
  • Li W; Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.
  • Su Y; School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China. zhushengbo@xatu.edu.cn.
  • Zhou H; Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.
  • Chen R; School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China. zhushengbo@xatu.edu.cn.
  • Chen W; Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.
  • Zhang W; School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China. zhushengbo@xatu.edu.cn.
  • Niu X; Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.
  • Chen X; School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China. zhushengbo@xatu.edu.cn.
  • An Z; Key Laboratory of Applied Surface and Colloid Chemistry (MOE), Xi'an 710119, P. R. China.
Phys Chem Chem Phys ; 24(37): 22580-22588, 2022 Sep 28.
Article en En | MEDLINE | ID: mdl-36102796
Three biphenyl co-sensitizers (4OBA, 8OBA and 12OBA) with different terminal oxyalkyl chains were synthesized and co-sensitized respectively with the main dye (NP-1) in co-sensitized solar cells (co-DSSCs). The effects of the terminal oxyalkyl chains on the photophysical, electrochemical and photovoltaic properties of the co-DSSCs were systematically investigated. The optimal molecular matching relationship between the co-sensitizers and the main dye was obtained through density functional theory (DFT) calculations. Consequently, 4OBA has the most appropriate three-dimensional (3D) molecular structure, which could not only fill the gap between the large-size dyes but also plays a partial shielding role, inhibiting dye aggregation and electron recombination, therefore yielding the highest power conversion efficiency (PCE) for the co-DSSCs with NP-1@4OBA. This study suggests that adjusting the terminal oxyalkyl chains of the co-sensitizers can be used to enhance the intramolecular charge transfer efficiency and inhibit electron recombination, ultimately improving the photovoltaic performances of the co-DSSCs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido