Results 101 to 110 of about 9,088 (259)

Synthesis and charaterisation of phosphorescent copper (I) complexes for light emitting devices [PDF]

, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Over the last decade, many significant developments have been made to improve the active materials in a new generation of organic light emitting devices ...
Andrés-Tomé, María Inmaculada
core  

Room temperature phosphorescence lifetime and spectrum tuning of substituted thianthrenes

, 2017
A group of thianthrene derivatives has been studied to investigate the effect of different substituents and substitution positions on their photophysical behavior.
Piotr Pander, Fernando B. Dias, Swist, Agnieszka, Soloducho, Jadwiga, Agnieszka Swist, Dias, Fernando B., Jadwiga Soloducho, Pander, Piotr   +7 more
core   +1 more source

Matrix‐Free Afterglow Carbon Dots: Synthetic Strategies, Luminescence Mechanisms, and Emerging Applications

Carbon Innovation, EarlyView.
This review systematically elucidates the luminescence mechanism, synthesis methods of matrix‐free afterglow carbon dots, and their application progress in information encryption, light‐emitting diodes, sensing, bioimaging, and tumor treatment, and finally, discusses the current challenges and future development directions. ABSTRACT Afterglow materials,
Yupeng Liu, Xiangxin Sun, Zhiqi Cai, Hanyi Zhang, Yiming Hao, Songnan Qu   +5 more
wiley   +1 more source

Gas–Solid Interface‐Assisted Growth of Organic Semiconductor Single Crystals: Dimensions, Structures, Mechanisms, and Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Gas–solid interface‐assisted growth strategies have unlocked precise control over crystal structure, morphology, dimension, and molecular packing. The obtained organic semiconductor single crystals represent the ideal candidates for high‐performance organic optoelectronic devices.
Tingyi Yan, Qing Tian, Jinwen Wang, Ke Jiang, Yage Han, Yuanzhuang Ren, Lingyun Li, Xiujuan Zhang, Jiansheng Jie   +8 more
wiley   +1 more source

Iridium complex, a phosphorescent light-emitting diode material, serves as a novel chemical probe for imaging hypoxic tumor tissues

, 2007
Iridium complex, a promising organic light-emitting diode for next generation television displays, emits phosphorescence. Phosphorescence is quenched by oxygen. We used this oxygen-quenching feature for imaging tumor hypoxia.
Yasuhiko Iida, Keigo Endo, Masahiro Hosaka, Seiji Tobita, Toshiyuki Takeuchi, Toshitada Yoshihara, Shaojuan Zhang   +6 more
core  

Activation of Aryl Halides by Triplet–Triplet Annihilation Upconversion Enabling Coupling Processes Under an Open‐to‐Air Environment

European Journal of Organic Chemistry, EarlyView.
Triplet–triplet annihilation upconversion (TTA‐UC) performed inside supramolecular viscoelastic gels enables efficient CC and C–heteroatom coupling reactions under green LED irradiation in open‐air conditions. The gel network restricts oxygen diffusion, preserves triplet states, and allows aryl halide activation through upconverted excited states ...
Daniel Álvarez‐Gutiérrez, Paola Domínguez Domínguez, M. Consuelo Jiménez, David Díaz Díaz, Raúl Pérez‐Ruiz   +4 more
wiley   +1 more source

Excellent Persistent Near‐Infrared Room Temperature Phosphorescence from Highly Efficient Host–Guest Systems

Advanced Science
Organic near‐infrared (NIR) room temperature phosphorescence (RTP) materials become a hot topic in bioimaging and biosensing for the large penetration depth and high signal‐to‐background ratio (SBR).
Shuhui Li, Juqing Gu, Jiaqiang Wang, Wentao Yuan, Guigui Ye, Likai Yuan, Qiuyan Liao, Le Wang, Zhen Li, Qianqian Li   +9 more
doaj   +1 more source

Narrowband Macrocycles: A New Paradigm for High‐Color‐Purity Organic Light‐Emitting Diodes

FlexTech, EarlyView.
This graphical abstract illustrates two key strategies for constructing macrocyclic multi‐resonance (MR) emitters for high‐performance OLEDs: (1) the covalent assembly of MR moieties onto macrocyclic scaffolds, and (2) the local multi‐resonance strategy within the macrocyclic backbone.
Zhongbo Xiang, Haowen Li, Lian Duan, Yuewei Zhang   +3 more
wiley   +1 more source

Crystallization-induced phosphorescence of benzils at room temperature

, 2013
Efficient room temperature phosphorescence (RTP) is rarely observed in pure organic luminogens. However, we have newly observed that benzil and its derivatives are nonluminescent in solvents and thin layer chromatography (TLC) plates, but become highly ...
Li, Hong, Yuan, Wangzhang, Tan, Yeqiang, Gong, Yongyang, Zhang, Yongming, Zhang, Yiren, Sun, Jingzhi, Tang, Ben Zhong   +7 more
core   +1 more source

Thermally activated delayed fluorescence exciplex sensitizers with fast reverse intersystem crossing for improving efficiency stability of organic light‐emitting diodes based on multi‐resonance emitters

FlexMat, EarlyView.
Two exciplex emitters are constructed based on a host‐guest doping strategy, and their exciton dynamics processes are investigated in depth. High‐performance OLEDs are fabricated by employing these exciplexes as emitters or sensitizers, providing excellent electroluminescence efficiencies and low efficiency roll‐offs.
Jingwen Xu, Min Wang, Jinshi Li, Ben Zhong Tang, Zujin Zhao   +4 more
wiley   +1 more source