Results 61 to 70 of about 70,821 (371)

Room-Temperature Phosphorescence of Quinine Sulfate in PVA Films: The Effect of Humidity

Optics
We report the first observation of room-temperature phosphorescence (RTP) of quinine sulfate (QS) in poly (vinyl alcohol) (PVA) films. Steady-state and time-gated measurements were performed to characterize the phosphorescence spectra, anisotropies, and ...
Agnieszka Jablonska, Bong Lee, R. Max Petty, Danh Pham, Rajveer Sagoo, Trang Thien Pham, Zygmunt Gryczynski, Ignacy Gryczynski   +7 more
doaj   +1 more source

Gas phase thermometry of hot turbulent jets using laser induced phosphorescence [PDF]

, 2013
This article is made available through the Brunel Open Access Publishing Fund. Copyright @ 2013 OSAThe temperature distributions of heated turbulent jets of air were determined using two dimensional (planar) laser induced phosphorescence.
Agrawal, Aldén, Allison, Bizarri, Brubach, Brubach, Caslavsky, Eldridge, Fond, Fuhrmann, Fuhrmann, Ginnings, Goss, Hasegawa, Hua Zhao, Justel, Kim, Lemoine, Lindén, Lindén, Lionel Ganippa, Martin Lawrence, Melling, Noel, Omrane, Omrane, Omrane, Omrane, Raju, Ravichandran, Ronda, Rothamer, Skinner, Someya, Särner, Tobin, Tran, Wade, Yu   +38 more
core   +1 more source

Thermally Activated Delayed Fluorescence in Phase‐Separated Nanostructures

Advanced Functional Materials, EarlyView.
A supramolecular, phase‐separation driven strategy yields charge transfer (CT) complexes from alternating electron‐deficient pyromellitic diimide and electron‐rich 4,5‐dibromoveratrole. The resulting CT complexes self‐assemble into lamellar nanosheets with nanometer‐sized domains that exhibit thermally activated delayed fluorescence (TADF) at room ...
Bart W.L. van den Bersselaar, Giovanni M. Beneventi, Philip M. Greißel, Lukas A. Mai, Stefan J. D. Maessen, Bas F.M. de Waal, E.W. Meijer, Dirk M. Guldi, Ghislaine Vantomme   +8 more
wiley   +1 more source

Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp 3-linked donor-acceptor electronic coupling

Nature Communications, 2021
Aggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting molecular motions.
Tao Wang, Zhubin Hu, Xiancheng Nie, Linkun Huang, Miao Hui, Xiang Sun, Guoqing Zhang   +6 more
doaj   +1 more source

Large size LYSO crystals for future high energy physics experiments [PDF]

, 2005
Because of their high stopping power and fast bright scintillation, cerium doped silicate based heavy crystal scintillators, such as GSO, LSO, and LYSO, have been developed for medical instruments.
Chen, Jianming, Zhang, Liyuan, Zhu, Ren-Yuan   +2 more
core  

Temperature dependent persistent luminescence : evaluating the optimum working temperature [PDF]

, 2019
Development of persistent luminescent materials has drawn continuous attention in recent years in view of their potential applications in the fields of security night-vision signage, in vivo bio-imaging and optical data storage.
De Clercq, Olivier, Du, Jiaren, Poelman, Dirk   +2 more
core   +1 more source

Carbazole isomers induce ultralong organic phosphorescence

Nature Materials, 2020
Commercial carbazole has been widely used to synthesize organic functional materials that have led to recent breakthroughs in ultralong organic phosphorescence 1 , thermally activated delayed fluorescence 2 , 3 , organic luminescent radicals 4 and ...
Chengjian Chen, Zhenguo Chi, Kok Chan Chong, A. Batsanov, Zhan Yang, Z. Mao, Zhiyong Yang, Bin Liu   +7 more
semanticscholar   +1 more source

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

Advanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King, Kou Yoshida, Arvydas Ruseckas, Ifor D. W. Samuel   +3 more
wiley   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Amorphous Copper‐Based Nanoparticles with Clusterization‐Triggered Phosphorescence for Ultrasensing 2,4,6‐Trinitrotoluene [PDF]

, 2023
Zhuohua Dai, Guangfa Wang, Fangfang Xiao, Da Lei, Xincun Dou   +4 more
openalex   +1 more source