Journal
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
Volume 15, Issue 7, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.202100066
Keywords
electron transfer; high pressure; quantum dots; superlattices
Funding
- National Key R&D Program of China [2018YFA0305900, 2017YFA0403704, 2018YFA0703404]
- National Natural Science Foundation of China [61575079, 11974133, 11804113, 51720105007]
- Nature Science Foundation of Jilin Province [20180101279JC]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT_15R23]
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The study demonstrates that pressure can effectively adjust the interparticle spacing in binary nanoparticle superlattices, accelerating the electron transfer process. Additionally, the trap state of CdSe / ZnS QDs is found to impact the electron transfer process of BNSLs.
The interparticle spacing of a heterostructure is a crucial factor affecting electron transfer (ET) process. Herein, binary nanoparticle superlattices (BNSLs) composed of CdSe/ZnS quantum dots (QDs) and Au nanoclusters (NCs) are prepared. Steady-state and time-resolved spectra illustrate that the ET accelerates as the pressure increases because pressure effectively adjusts the interparticle spacing. The results also demonstrate that the trap state of the CdSe/ZnS QDs affects the ET process of BNSLs.
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