Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 4, Issue 14, Pages 2334-2338Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz401213w
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Funding
- National Science Foundation [CBET-0931677, CBET-1065633]
- DoD Award [DM102420, W81XWH-11-2-0103]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1065633] Funding Source: National Science Foundation
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We report the observation of very high triplet triplet annihilation (TTA) upconversion efficiency in single-sensitizer/multiacceptor systems. A hetero-TTA process between triplet acceptors of different types is believed to account for the synergistic effect leading to the high upconversion efficiency. The upconversion quantum yield of the dual-acceptor system is much higher than the sum of the two single-acceptor systems.
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