Solvents effects on charge transfer from quantum dots

Journal of the American Chemical Society
Jennifer L EllisWei Xiong

Abstract

To predict and understand the performance of nanodevices in different environments, the influence of the solvent must be explicitly understood. In this Communication, this important but largely unexplored question is addressed through a comparison of quantum dot charge transfer processes occurring in both liquid phase and in vacuum. By comparing solution phase transient absorption spectroscopy and gas-phase photoelectron spectroscopy, we show that hexane, a common nonpolar solvent for quantum dots, has negligible influence on charge transfer dynamics. Our experimental results, supported by insights from theory, indicate that the reorganization energy of nonpolar solvents plays a minimal role in the energy landscape of charge transfer in quantum dot devices. Thus, this study demonstrates that measurements conducted in nonpolar solvents can indeed provide insight into nanodevice performance in a wide variety of environments.

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Citations

Apr 26, 2016·Journal of the American Chemical Society·Ryan M YoungDick T Co
May 25, 2016·Annual Review of Physical Chemistry·Haiming ZhuTianquan Lian
Apr 12, 2017·Chemistry : a European Journal·Yihui YangJunfa Wei
Jan 22, 2020·Physical Chemistry Chemical Physics : PCCP·Musahid Ahmed, Oleg Kostko
Sep 9, 2020·ACS Applied Materials & Interfaces·Farzana ChowdhuryJayan Thomas
Dec 26, 2018·The Journal of Physical Chemistry Letters·Hongzhi ZhouHaiming Zhu

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