Charge recombination versus charge separation in donor-bridge-acceptor systems

被引：0
|
作者：
Wiberg, Joanna [1 ]
Guo, Lijun [1 ,3 ]
Pettersson, Karin [1 ]
Nilsson, Daniel [2 ]
Ljungdahl, Thomas [2 ]
Mårtensson, Jerker [2 ]
Albinsson, Bo [1 ]
机构：
[1] Department of Chemical and Biological Engineering/Physical Chemistry, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
[2] Department of Organic Chemistry, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
[3] Physics Department, Henan University, Kaifeng 475001, China
来源：
Journal of the American Chemical Society | 2007年 / 129卷 / 01期
关键词：
Optimizing the ratio of the rates for charge separation (CS) over charge recombination (CR) is crucial to create long-lived charge-separated states. Mastering the factors that govern the electron transfer (ET) rates is essential when trying to achieve molecular-scale electronics; artificial photosynthesis; and also for the further development of solar cells. Much work has been put into the question of how the donor-acceptor distances and donor-bridge energy gaps affect the electronic coupling; VDA; and thus the rates of ET. We present here a unique comparison on how these factors differently influence the rates for CS and CR in a porphyrin-based donor-bridge-acceptor model system. Our system contains three series; each of which focuses on a separate charge-transfer rate-determining factor; the donor-acceptor distance; the donor-bridge energy gap; and last; the influence of the electron acceptor on the rate for charge transfer. In these three series both CS and CR are governed by superexchange interactions which make a CR/CS comparative study ideal. We show here that the exponential distance dependence increases slightly for CR compared to that for CS as a result of the increased tunneling barrier height for this reaction; in accordance with the McConnell superexchange model. We also show that the dependence on the tunneling barrier height is different for CS and CR. This difference is highly dependent on the electron acceptor and thus cannot solely be explained by the differences in the frontier orbitals of the electron donor in these porphyrin systems. © 2007 American Chemical Society;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：155 / 163
相关论文
共 50 条
  • [41] Excitation energy transfer in donor-bridge-acceptor systems
    Albinsson, Bo
    Martensson, Jerker
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (27) : 7338 - 7351
  • [42] On the mechanism of vibrational control of light-induced charge transfer in donor-bridge-acceptor assemblies
    Delor M.
    Keane T.
    Scattergood P.A.
    Sazanovich I.V.
    Greetham G.M.
    Towrie M.
    Meijer A.J.H.M.
    Weinstein J.A.
    Nature Chemistry, 2015, 7 (9) : 689 - 695
  • [43] Electronic coupling for charge transfer in donor-bridge-acceptor systems. Performance of the two-state FCD model
    Voityuk, Alexander A.
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (40) : 13789 - 13793
  • [44] Charge separation, charge recombination and intersystem crossing in orthogonal naphthalimide–perylene electron donor/acceptor dyad
    Xi Chen
    Junhong Pang
    Muhammad Imran
    Xiaolian Li
    Jianzhang Zhao
    Mingde Li
    Photochemical & Photobiological Sciences, 2021, 20 : 69 - 85
  • [45] Charge Separation and Recombination of Charge-Transfer Excitons in Donor-Acceptor Polymer Solar Cells
    Tsutsumi, Jun'ya
    Matsuzaki, Hiroyuki
    Kanai, Naoyuki
    Yamada, Toshikazu
    Hasegawa, Tatsuo
    JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (33): : 16769 - 16773
  • [46] Controlling charge separation and recombination by chemical design in donor-acceptor dyads
    Liu, Li
    Eisenbrandt, Pierre
    Roland, Thomas
    Polkehn, Matthias
    Schwartz, Pierre-Olivier
    Bruchlos, Kirsten
    Omiecienski, Beatrice
    Ludwigs, Sabine
    Leclerc, Nicolas
    Zaborova, Elena
    Leonard, Jeremie
    Mery, Stephane
    Burghardt, Irene
    Haacke, Stefan
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2016, 18 (27) : 18536 - 18548
  • [47] Charge separation and recombination in a photoconducting polymer with electron donor-acceptor complexes
    Ruseckas, A
    Gulbinas, V
    Sundström, V
    Undzenas, A
    Valkunas, L
    JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (38): : 7365 - 7370
  • [48] Temperature Dependence of Charge Separation and Recombination in Porphyrin Oligomer-Fullerene Donor-Acceptor Systems
    Kahnt, Axel
    Karnbratt, Joakim
    Esdaile, Louisa J.
    Hutin, Marie
    Sawada, Katsutoshi
    Anderson, Harry L.
    Albinsson, Bo
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (25) : 9863 - 9871
  • [49] Revealing the Role of Donor/Acceptor Interfaces in Nonfullerene-Acceptor Based Organic Solar Cells: Charge Separation versus Recombination
    Ji, Yiwen
    Mu, Xinyu
    Yin, Hang
    Cui, Bin
    Hao, Xiaotao
    Gao, Kun
    JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2023, 14 (16): : 3811 - 3817
  • [50] Intramolecular Charge- and Energy-Transfer Rates with Reduced Modes: Comparison to Marcus Theory for Donor-Bridge-Acceptor Systems
    Yang, Xunmo
    Bittner, Eric R.
    JOURNAL OF PHYSICAL CHEMISTRY A, 2014, 118 (28): : 5196 - 5203
12345