Investigation reveals optimal shell thickness improves triplet energy transfer in quantum dots, suggesting enhanced photon upconversion.
The effect of shell thickness on triplet energy transfer (TET) efficiency was systematically investigated in ZnSe/ZnS-BCA hybrid systems. The optimal shell thickness of ZnSe/ZnS effectively suppresses surface trap states while preserving sufficient wavefunction overlap to facilitate efficient TET, and exhibits the highest upconversion quantum yield.
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Wang et al. (2025) studied this question.
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