Visualizing Energy Transfer Between Redox-Active Colloids
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2022
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| _version_ | 1866917824902987776 |
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| author | Qu, Subing Ou, Zihao Savsatli, Yavuz Yao, Lehan Cao, Yu Montoto, Elena C. Yu, Hao Hui, Jingshu Li, Bo Soares, Julio A. N. T. Kisley, Lydia Bailey, Brian Murphy, Elizabeth A. Liu, Junsheng Evans, Christopher M. Schroeder, Charles M. Rodríguez-López, Joaquín Moore, Jeffrey S. Chen, Qian Braun, Paul V. |
| author_facet | Qu, Subing Ou, Zihao Savsatli, Yavuz Yao, Lehan Cao, Yu Montoto, Elena C. Yu, Hao Hui, Jingshu Li, Bo Soares, Julio A. N. T. Kisley, Lydia Bailey, Brian Murphy, Elizabeth A. Liu, Junsheng Evans, Christopher M. Schroeder, Charles M. Rodríguez-López, Joaquín Moore, Jeffrey S. Chen, Qian Braun, Paul V. |
| contents | Redox-based electrical conduction in nonconjugated polymers has been explored less than a decade, yet is already showing promise as a new concept for electrical energy transport. Here using monolayers and sub-monolayers of touching micron-sized redox active colloids (RAC) containing high densities of ethyl-viologen (EV) side groups, intercolloid redox-based electron transport was directly observed via fluorescence microscopy. This observation was enabled by the discovery that these RAC exhibit a highly non-linear electrofluorochromism which can be quantitatively coupled to the colloid redox state. By evaluating the quasi-Fickian nature of the charge transfer (CT) kinetics, the apparent CT diffusion coefficient DCT was extracted. Along with addressing more fundamental questions regarding energy transport in colloidal materials, this first real-time real-space imaging of energy transport within monolayers of redox-active colloids may provide insights into energy transfer in flow batteries, and enable design of new forms of conductive polymers for applications including organic electronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2204_00195 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Visualizing Energy Transfer Between Redox-Active Colloids Qu, Subing Ou, Zihao Savsatli, Yavuz Yao, Lehan Cao, Yu Montoto, Elena C. Yu, Hao Hui, Jingshu Li, Bo Soares, Julio A. N. T. Kisley, Lydia Bailey, Brian Murphy, Elizabeth A. Liu, Junsheng Evans, Christopher M. Schroeder, Charles M. Rodríguez-López, Joaquín Moore, Jeffrey S. Chen, Qian Braun, Paul V. Soft Condensed Matter Materials Science Chemical Physics Redox-based electrical conduction in nonconjugated polymers has been explored less than a decade, yet is already showing promise as a new concept for electrical energy transport. Here using monolayers and sub-monolayers of touching micron-sized redox active colloids (RAC) containing high densities of ethyl-viologen (EV) side groups, intercolloid redox-based electron transport was directly observed via fluorescence microscopy. This observation was enabled by the discovery that these RAC exhibit a highly non-linear electrofluorochromism which can be quantitatively coupled to the colloid redox state. By evaluating the quasi-Fickian nature of the charge transfer (CT) kinetics, the apparent CT diffusion coefficient DCT was extracted. Along with addressing more fundamental questions regarding energy transport in colloidal materials, this first real-time real-space imaging of energy transport within monolayers of redox-active colloids may provide insights into energy transfer in flow batteries, and enable design of new forms of conductive polymers for applications including organic electronics. |
| title | Visualizing Energy Transfer Between Redox-Active Colloids |
| topic | Soft Condensed Matter Materials Science Chemical Physics |
| url | https://arxiv.org/abs/2204.00195 |