Solid State Dilution Controls Marcus Inverted Transport in Rectifying Molecular Junctions
- Authors
- Kang, Hungu; Kong, Gyu Don; Yoon, Hyo Jae
- Issue Date
- 28-1월-2021
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.12, no.3, pp.982 - 988
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF PHYSICAL CHEMISTRY LETTERS
- Volume
- 12
- Number
- 3
- Start Page
- 982
- End Page
- 988
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/50056
- DOI
- 10.1021/acs.jpclett.0c03251
- ISSN
- 1948-7185
- Abstract
- Traditional Marcus theory accounts for electron transfer reactions in solutions, and the polarity of solvent molecule matters for them. How such an environment polarity affects electron transfer reactions in solid-state devices, however, remains uncertain. This paper describes how the Marcus inverted charge transport is influenced by solid-state molecular dilution in large-area tunneling junctions. A monolayer of 2,2'-bipyridyl terminated n-alkanethiolate (SC11BIPY), which rectifies currents via electron hopping within the inverted regime, is diluted with n-alkanethiolate (SCn) of different lengths (n = 8, 10, or 18) or at different surface mole fractions. The dilution introduces nonpolar environments within the monolayer, hinders stabilization of charged BIPY species upon electron hopping, and pushes the equilibrium of BIPY reversible arrow BIPY center dot- process toward the reverse direction. Our work demonstrates that solid-state molecular dilution permits systematic control of the environment polarity of active component in nanoscale devices, much like solvent polarity control in solution, and their performances.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Department of Chemistry > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholar.korea.ac.kr/handle/2021.sw.korea/50056)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.