Results 21 to 30 of about 5,417 (181)

Boosting the efficiency of organic persistent room-temperature phosphorescence by intramolecular triplet-triplet energy transfer

Nature Communications, 2019
The potential of organic materials with persistent room-temperature phosphorescence for high-tech application is limited by their low efficiency. Here, the authors report a strategy to enhance persistent room-temperature phosphorescence efficiency via ...
Weijun Zhao, Tsz Shing Cheung, Nan Jiang, Wenbin Huang, Jacky W. Y. Lam, Xuepeng Zhang, Zikai He, Ben Zhong Tang   +7 more
doaj   +1 more source

Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks

Light: Science & Applications, 2023
Optical encryption technologies based on room-temperature light-emitting materials are of considerable interest. Herein, we present three-dimensional (3D) printable dual-light-emitting materials for high-performance optical pattern encryption.
Jin Woo Oh, Seokyeong Lee, Hyowon Han, Omar Allam, Ji Il Choi, Hyeokjung Lee, Wei Jiang, Jihye Jang, Gwanho Kim, Seungsoo Mun, Kyuho Lee, Yeonji Kim, Jong Woong Park, Seonju Lee, Seung Soon Jang, Cheolmin Park   +15 more
doaj   +1 more source

Design of mechanical-robust phosphorescence materials through covalent click reaction

Nature Communications, 2023
It remains a great challenge to engineer materials with strong and stable interactions for the simultaneously mechanical-robust and room temperature phosphorescence-efficient materials.
Rui Tian, Shuo Gao, Kaitao Li, Chao Lu
doaj   +1 more source

Two‐Photon Excited Near‐Infrared Phosphorescence Based on Secondary Supramolecular Confinement

Advanced Science, 2022
Organic phosphorescence materials have received wide attention in bioimaging for bio‐low toxicity and large Stokes. Herein, a design strategy to achieve near‐infrared (NIR) excitation and emission of organic room‐temperature phosphorescence through two ...
Xin‐Kun Ma, Xiaolu Zhou, Jing Wu, Fang‐Fang Shen, Yu Liu   +4 more
doaj   +1 more source

Enabling long-lived organic room temperature phosphorescence in polymers by subunit interlocking

Nature Communications, 2019
Long-lived room temperature phosphorescence (LRTP) is important in organic photonics but exploring a universal approach to obtain LRTP in amorphous polymers is challenging.
Suzhi Cai, Huili Ma, Huifang Shi, He Wang, Xuan Wang, Leixin Xiao, Wenpeng Ye, Kaiwei Huang, Xudong Cao, Nan Gan, Chaoqun Ma, Mingxing Gu, Lulu Song, Hai Xu, Youtian Tao, Chunfeng Zhang, Wei Yao, Zhongfu An, Wei Huang   +18 more
doaj   +1 more source

Urea-formaldehyde resin room temperature phosphorescent material with ultra-long afterglow and adjustable phosphorescence performance

Nature Communications
Organic room-temperature phosphorescence materials have attracted extensive attention, but their development is limited by the stability and processibility.
Wensheng Xu, Bowei Wang, Shuai Liu, Wangwang Fang, Qinglong Jia, Jiayi Liu, Changchang Bo, Xilong Yan, Yang Li, Ligong Chen   +9 more
doaj   +1 more source

Unified Analytical Framework for Understanding the Operational Stability of Blue Phosphorescent OLEDs: Quantitative Insights Into Exciton Recycling and Bimolecular Interactions

Advanced Functional Materials, EarlyView.
Blue phosphorescent OLEDs remain limited by poor operational stability. Here, a unified analytical framework integrating transient photoluminescence and magneto‐electroluminescence is developed to correlate intrinsic material photophysics with electrically driven degradation.
Hakjun Lee, Bum June Park, Taekyung Kim
wiley   +1 more source

Room-temperature phosphorescence from metal-free polymer-based materials

Cell Reports Physical Science, 2022
Summary: Room-temperature phosphorescence (RTP) has received extensive attention in recent years due to its various potential applications. Pure organic RTP materials may overcome the shortcomings of harsh preparation conditions and high toxicity ...
Yanxiang Gong, Jie Yang, Manman Fang, Zhen Li   +3 more
doaj   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source