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Title: Exciton dissociation in quantum dots connected with photochromic molecule bridges
We report modulation of exciton dissociation dynamics in quantum dots (QD) connected with photochromic molecules. Our results show that switching the configuration of photochromic molecules changes the inter-QD potential barrier height which has a major impact on the charge tunnelling and exciton dissociation. The switching of the dominant exciton decay pathway between the radiative recombination and exciton dissociation results in switchable photoluminescence intensity from QDs. Implications of our findings for optical memory and optical computing applications are discussed.
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Award ID(s):
2003978 2003853
Publication Date:
Journal Name:
Journal of Materials Chemistry C
Page Range or eLocation-ID:
16006 to 16013
Sponsoring Org:
National Science Foundation
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