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    Rights statement: This is the peer reviewed version of the following article: J. Liu, X. Zhao, Q. Al-Galiby, X. Huang, J. Zheng, R. Li, C. Huang, Y. Yang, J. Shi, D. Z. Manrique, C. J. Lambert, M. R. Bryce, W. Hong, Angew. Chem. Int. Ed. 2017, 56, 13061. which has been published in final form at https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201707710 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Radical-Enhanced Charge Transport in Single-Molecule Phenothiazine Electrical Junctions

Research output: Contribution to journalJournal article

Published
  • Junyang Liu
  • Xiaotao Zhao
  • Qusiy Al-Galiby
  • Xiaoyan Huang
  • Jueting Zheng
  • Ruihao Li
  • Cancan Huang
  • Yang Yang
  • Jia Shi
  • David Zsolt Manrique
  • Colin J. Lambert
  • Martin R. Bryce
  • Wenjing Hong
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<mark>Journal publication date</mark>9/10/2017
<mark>Journal</mark>Angewandte Chemie - International Edition
Issue number42
Volume56
Number of pages5
Pages (from-to)13061-13065
Publication statusPublished
Early online date12/09/17
Original languageEnglish

Abstract

We studied the single-molecule conductance through an acid oxidant triggered phenothiazine (PTZ-) based radical junction using the mechanically controllable break junction technique. The electrical conductance of the radical state was enhanced by up to 200 times compared to the neutral state, with high stability lasting for at least two months and high junction formation probability at room-temperature. Theoretical studies revealed that the conductance increase is due to a significant decrease of the HOMO–LUMO gap and also the enhanced transmission close to the HOMO orbital when the radical forms. The large conductance enhancement induced by the formation of the stable PTZ radical molecule will lead to promising applications in single-molecule electronics and spintronics.

Bibliographic note

This is the peer reviewed version of the following article: J. Liu, X. Zhao, Q. Al-Galiby, X. Huang, J. Zheng, R. Li, C. Huang, Y. Yang, J. Shi, D. Z. Manrique, C. J. Lambert, M. R. Bryce, W. Hong, Angew. Chem. Int. Ed. 2017, 56, 13061. which has been published in final form at https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201707710 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.