Suppressed Triplet Exciton Diffusion Due to Small Orbital Overlap as a Key Design Factor for Ultralong-Lived Room-Temperature Phosphorescence in Molecular Crystals

High-Performance Non-doped OLEDs with Nearly 100 % Exciton Use and Negligible Efficiency Roll-Off

(2018) Huijun Liu et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Intrinsic Analysis of Radiative and Room-Temperature Nonradiative Processes Based on Triplet State Intramolecular Vibrations of Heavy Atom-Free Conjugated Molecules toward Efficient Persistent Room-Temperature Phosphorescence

(2018) Shuzo Hirata   Journal of Physical Chemistry Letters

Ultralong Room-Temperature Phosphorescence from Supramolecular Behavior via Intermolecular Electronic Coupling in Pure Organic Crystals

(2018) Saifei Pan et al.   Journal of Physical Chemistry Letters

The influence of the molecular packing on the room temperature phosphorescence of purely organic luminogens

(2018) Jie Yang et al.   Nature Communications

Ultralong-lived room temperature triplet excitons: molecular persistent room temperature phosphorescence and nonlinear optical characteristics with continuous irradiation

(2018) Shuzo Hirata   Journal of Materials Chemistry C

Self-Protective Room-Temperature Phosphorescence of Fluorine and Nitrogen Codoped Carbon Dots

(2018) Peng Long et al.   ADVANCED FUNCTIONAL MATERIALS

Simultaneously Enhancing Efficiency and Lifetime of Ultralong Organic Phosphorescence Materials by Molecular Self-Assembly

(2018) Lifang Bian et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Large Reverse Saturable Absorption at the Sunlight Power Level Using the Ultralong Lifetime of Triplet Excitons

(2017) Shuzo Hirata et al.   Journal of Physical Chemistry Letters

Nanoscale triplet exciton diffusion via imaging of up-conversion emission from single hybrid nanoparticles in molecular crystals

(2017) Kaishi Narushima et al.   Nanoscale

The Role of Triplet Exciton Diffusion in Light-Upconverting Polymer Glasses

(2016) Steponas Raišys et al.   ACS Applied Materials & Interfaces

Difluoroboron β-diketonate materials with long-lived phosphorescence enable lifetime based oxygen imaging with a portable cost effective camera

(2016) Alexander S. Mathew et al.   Analytical Methods

Aggregation-Induced Delayed Fluorescence Based on Donor/Acceptor-Tethered Janus Carborane Triads: Unique Photophysical Properties of Nondoped OLEDs

(2016) Ryuhei Furue et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Nearly 100% Internal Quantum Efficiency in Undoped Electroluminescent Devices Employing Pure Organic Emitters

(2015) Qisheng Zhang et al.   ADVANCED MATERIALS

Achieving Persistent Room Temperature Phosphorescence and Remarkable Mechanochromism from Pure Organic Luminogens

(2015) Yongyang Gong et al.   ADVANCED MATERIALS

A versatile thermally activated delayed fluorescence emitter for both highly efficient doped and non-doped organic light emitting devices

(2015) Wei-Lung Tsai et al.   CHEMICAL COMMUNICATIONS

Exciton diffusion in organic semiconductors

(2015) Oleksandr V. Mikhnenko et al.   Energy & Environmental Science

Cooperative singlet and triplet exciton transport in tetracene crystals visualized by ultrafast microscopy

(2015) Yan Wan et al.   Nature Chemistry

Complementary LED technologies

(2015) Sebastian Reineke   NATURE MATERIALS

Stabilizing triplet excited states for ultralong organic phosphorescence

(2015) Zhongfu An et al.   NATURE MATERIALS

Suppressing molecular motions for enhanced room-temperature phosphorescence of metal-free organic materials

(2015) Min Sang Kwon et al.   Nature Communications

Large Transmittance Change Induced by Exciton Accumulation under Weak Continuous Photoexcitation

(2015) Shuzo Hirata et al.   Advanced Optical Materials

General Design Strategy for Aromatic Ketone-Based Single-Component Dual-Emissive Materials

(2014) Xuepeng Zhang et al.   ACS Applied Materials & Interfaces

Visualization of exciton transport in ordered and disordered molecular solids

(2014) Gleb M. Akselrod et al.   Nature Communications

Efficient Persistent Room Temperature Phosphorescence in Organic Amorphous Materials under Ambient Conditions

(2013) Shuzo Hirata et al.   ADVANCED FUNCTIONAL MATERIALS

Long lifetime pure organic phosphorescence based on water soluble carbon dots

(2013) Yehao Deng et al.   CHEMICAL COMMUNICATIONS

Room-Temperature Phosphorescence From Films of Isolated Water-Soluble Conjugated Polymers in Hydrogen-Bonded Matrices

(2012) Hameed A. Al-Attar et al.   ADVANCED FUNCTIONAL MATERIALS

Activating efficient phosphorescence from purely organic materials by crystal design

(2011) Onas Bolton et al.   Nature Chemistry

Triplet exciton dynamics in rubrene single crystals

(2011) Aleksandr Ryasnyanskiy et al.   PHYSICAL REVIEW B

Direct Imaging of Anisotropic Exciton Diffusion and Triplet Diffusion Length in Rubrene Single Crystals

(2011) Pavel Irkhin et al.   PHYSICAL REVIEW LETTERS

Phosphorescent Light–Emitting Iridium Complexes Serve as a Hypoxia-Sensing Probe for Tumor Imaging in Living Animals

(2010) Shaojuan Zhang et al.   CANCER RESEARCH

Photon upconversion based on sensitized triplet–triplet annihilation

(2010) Tanya N. Singh-Rachford et al.   COORDINATION CHEMISTRY REVIEWS

Crystallization-Induced Phosphorescence of Pure Organic Luminogens at Room Temperature

(2010) Wang Zhang Yuan et al.   Journal of Physical Chemistry C

Observation of long-range exciton diffusion in highly ordered organic semiconductors

(2010) H. Najafov et al.   NATURE MATERIALS

Difluoroboron Dibenzoylmethane PCL-PLA Block Copolymers: Matrix Effects on Room Temperature Phosphorescence

(2009) Guoqing Zhang et al.   MACROMOLECULES