2018年3月15日 · A bright blue emitting excited-state intramolecular proton transfer (ESIPT) molecule, 2-(4,5-bis(4-chlorophenyl)-1H-imidazol-2-yl)-4-chlorolphenol (HPICl) has been designed and synthesized, whose solvent-dependent PLQY is up to 0.53 in EtOH, and 0.46 as solid state.

2018年7月3日 · This Review describes excited-state intramolecular proton-transfer (ESIPT) reactions with amines as proton donors.

2022年12月1日 · Excited state intramolecular proton transfer (ESIPT), one of the significant photophysical processes that possesses specific photoisomerization between Keto and Enol forms, can effectively avoid annoying interference from the background with a large Stokes shift. Hence, ESIPT is an excellent choice for biomarker monitoring.

The formation of two-component molecular cocrystals can lead to the tunable excited state intramolecular proton transfer (ESIPT) process and emission, as first confirmed by both experimental and computational studies.

2024年7月17日 · Excited-state intramolecular proton transfer (ESIPT) offers a unique approach for fluorescence-based detection due to its ultrafast enol-to-ketone phototautomerization pathway.

2022年7月5日 · An extremely high photoluminescence quantum yield (PLQY) up to 98.41% was achieved, as well as strong upconverted green, orange, and blue fluorescence was observed in TTPA-, rubrene-, and undoped exciplex blends, respectively, under the excitation of near-infrared femtosecond laser.

2024年2月5日 · Excited-state intramolecular proton transfer (ESIPT) molecule has received much attention as fluorescent sensors attributed to its pre-existing intramolecular hydrogen bonds and changeable ESIPT reaction. The ESIPT fluorophore typically experiences a unique four-level photochemical process.

2018年5月2日 · 激发态分子内质子转移（ESIPT）型有机共轭分子在光、热、电等作用下，从基态激励到激发态时，分子中某一基团上的质子可以通过分子内或分子间氢键转移到分子内邻近的杂原子上，形成互变异构体。 ESIPT分子被激发后，不仅出现构型上的变化，而且伴随着几个瞬时电子态的排布和弛豫，分子的发光性质会发生很大的变化。 ESIPT分子通常具有光学双稳态（双发射）、光致变色和光学非线性等诸多特性，特别是质子转移荧光还具有发光效率高、Stocks位移 …

2025年2月26日 · plqy是产出的光子数与激发光子数(或elqy之电子数)的精确比值。 对于PLQY测试，激发一般选用单色光激发比如激光，通过光功率及波长计算光子数，发射的荧光光子通过积分球收集进入光谱仪系统检测统计出随波长分布的功率进而得到发射的光子数，两者比值即为 ...

2024年12月28日 · 举个例子，在计算esipt中，即使得到1的能垒比较小，但是Δg很大，2的能垒略大，但是Δg很小（指更负），是否也能解释实验上1能观察到双发射峰，但2只能观察到一个大斯托克斯位移的单发射峰？