Results 31 to 40 of about 9,434 (244)

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

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

X-ray radiation excited ultralong (>20,000 seconds) intrinsic phosphorescence in aluminum nitride single-crystal scintillators

Nature Communications, 2020
Phosphorescence emission from extrinsic rare-earth element and organic component remains a challenge. Here, the authors demonstrate an ultraviolet ultralong intrinsic phosphorescence (UIP, >20,000 seconds) in aluminum nitride (AlN) single-crystal ...
Richeng Lin, Wei Zheng, Liang Chen, Yanming Zhu, MengXuan Xu, Xiaoping Ouyang, Feng Huang   +6 more
doaj   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Sensitive mechanical compression-patterned phosphorescence in the rubbery state of cross-linked polymer network

Nature Communications
The molecular motion of polymer chains inevitably quenches phosphorescence at temperatures higher than the glass transition temperature (T g). Therefore, modulating phosphorescence at relatively high temperatures presents a significant challenge. Herein,
Zhen Li, Wenhuan Huang, Chuanzhen Zhang, Youshen Wu, Yang Bai, Zhiyuan He, Chenhui Cui, Kexiang Chen, Ting Xu, Haoqing Teng, Zhishen Ge, Guoqing Zhang, Yanfeng Zhang   +12 more
doaj   +1 more source

Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer

Nature Communications, 2023
Despite increasing interest in organic room temperature phosphorescence, it can still be challenging to determine mechanism and develop practical applications.
Biao Chen, Wenhuan Huang, Guoqing Zhang
doaj   +1 more source

Bubble Formation Control: Fabrication of Centimeter‐Sized Tissue‐Like Constructs by Catalase‐Coated Oxygen‐Releasing Hydrogel

Advanced Materials, EarlyView.
Oxygen‐releasing hydrogels are widely used to support cell survival in 3D cultures and to promote wound healing. However, incorporating catalase to convert H2O2 into O2 often generates additional oxygen bubbles, leading to material instability which rarely addressed.
Sukulya Bunuasunthon, Isabel F. Amaral, Ana P. Pêgo, Michiya Matsusaki   +3 more
wiley   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

Advanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz, Jeanne Rebours, Zoulikha Zerrouqi, Noée Dumait, Maria Amela‐Cortes, Nikolai Scheuring, Sara Simonovska, Sebastian Marino, Max Ebert, Stéphane Cordier, Sabine Laschat, Yann Molard   +11 more
wiley   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Phosphorescence monitoring of hypoxic microenvironment in solid-tumors to evaluate chemotherapeutic effects using the hypoxia-sensitive iridium (III) coordination compound. [PDF]

PLoS ONE, 2015
To utilize phosphorescence to monitor hypoxic microenvironment in solid-tumors and investigate cancer chemotherapeutic effects in vivo.A hypoxia-sensitive probe named BTP was used to monitor hypoxic microenvironment in solid-tumors.
Yun Zeng, Yang Liu, Jin Shang, Jingwen Ma, Rong Wang, Lei Deng, Youmin Guo, Fan Zhong, Mingfeng Bai, Shaojuan Zhang, Daocheng Wu   +10 more
doaj   +1 more source