2021
DOI: 10.2494/photopolymer.34.423
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Photoluminescence Properties of Copolyimides Containing Naphthalene Core and Analysis of Excitation Energy Transfer between the Dianhydride Moieties

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Cited by 5 publications
(9 citation statements)
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“…In air, unlike fluorescent ICs (NT‐IC, s BP‐IC, and OD‐IC), 2Br‐IC exhibited weak FL at 415 nm and a strong and broad RTP at 528 nm, whereas BT‐IC exhibited only a broad RTP with vibronic structures at 520 nm. The ISC and PH processes in 2Br‐IC are promoted by heavy bromines, which is called the heavy atom effect [14–17] . In contrast, the T 1 state is generated with a high quantum yield in BT‐IC owing to its benzophenone moiety [59] .…”
Section: Resultsmentioning
confidence: 99%
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“…In air, unlike fluorescent ICs (NT‐IC, s BP‐IC, and OD‐IC), 2Br‐IC exhibited weak FL at 415 nm and a strong and broad RTP at 528 nm, whereas BT‐IC exhibited only a broad RTP with vibronic structures at 520 nm. The ISC and PH processes in 2Br‐IC are promoted by heavy bromines, which is called the heavy atom effect [14–17] . In contrast, the T 1 state is generated with a high quantum yield in BT‐IC owing to its benzophenone moiety [59] .…”
Section: Resultsmentioning
confidence: 99%
“…However, heavy metals adversely affect the environment and human health. To avoid such effects and reduce costs, RTP has been realized by introducing heavy halogens, such as Cl, Br, and I, into luminescent polymer materials [14–17] . We recently reported polyimides (PIs) that exhibit RTP by substituting heavy halogens in the aromatic main chain [14,15,17,18] .…”
Section: Introductionmentioning
confidence: 99%
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