Rights statement: This is the peer reviewed version of the following article: X. Li, Q. Wu, J. Bai, S. Hou, W. Jiang, C. Tang, H. Song, X. Huang, J. Zheng, Y. Yang, J. Liu, Y. Hu, J. Shi, Z. Liu, C. J. Lambert, D. Zhang, W. Hong, Angewandte Chemie International Edition 2020, 59, 3280. doi: 10.1002/anie.201913344 which has been published in final form at https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201913344 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Accepted author manuscript, 1.68 MB, PDF document
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Structure‐Independent Conductance of Thiophene‐Based Single‐Stacking Junctions
AU - Wu, Qingqing
AU - Hou, Songjun
AU - Lambert, Colin
N1 - This is the peer reviewed version of the following article: X. Li, Q. Wu, J. Bai, S. Hou, W. Jiang, C. Tang, H. Song, X. Huang, J. Zheng, Y. Yang, J. Liu, Y. Hu, J. Shi, Z. Liu, C. J. Lambert, D. Zhang, W. Hong, Angewandte Chemie International Edition 2020, 59, 3280. doi: 10.1002/anie.201913344 which has been published in final form at https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201913344 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
PY - 2020/2/17
Y1 - 2020/2/17
N2 - The experimental investigation of intermolecular charge transport in pi-conjugated materials is challenging. Herein, we describe the investigation of charge transport through intermolecular and intramolecular paths in single-molecule and single-stacking thiophene junctions by the mechanically controllable break junction (MCBJ) technique. We found that the ability for intermolecular charge transport through different single-stacking junctions was approximately independent of the molecular structure, which contrasts with the strong length dependence of conductance in single-molecule junctions with the same building blocks, and the dominant charge-transport path of molecules with two anchors transited from an intramolecular to an intermolecular path when the degree of conjugation increased. An increase in conjugation further led to higher binding probability owing to the variation in binding energies, as supported by DFT calculations.
AB - The experimental investigation of intermolecular charge transport in pi-conjugated materials is challenging. Herein, we describe the investigation of charge transport through intermolecular and intramolecular paths in single-molecule and single-stacking thiophene junctions by the mechanically controllable break junction (MCBJ) technique. We found that the ability for intermolecular charge transport through different single-stacking junctions was approximately independent of the molecular structure, which contrasts with the strong length dependence of conductance in single-molecule junctions with the same building blocks, and the dominant charge-transport path of molecules with two anchors transited from an intramolecular to an intermolecular path when the degree of conjugation increased. An increase in conjugation further led to higher binding probability owing to the variation in binding energies, as supported by DFT calculations.
U2 - 10.1002/anie.201913344
DO - 10.1002/anie.201913344
M3 - Journal article
VL - 59
SP - 3280
EP - 3286
JO - Angewandte Chemie
JF - Angewandte Chemie
SN - 0044-8249
IS - 8
ER -