scholarly journals Metal free room temperature phosphorescence from molecular self-interactions in the solid state

2018 ◽  
Vol 6 (17) ◽  
pp. 4603-4626 ◽  
Author(s):  
Alessandra Forni ◽  
Elena Lucenti ◽  
Chiara Botta ◽  
Elena Cariati
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Organic Materials ◽  
Environmental Load ◽  
Room Temperature Phosphorescence ◽  
Metal Free ◽  
Low Toxicity

Purely organic materials showing solid state room temperature phosphorescence (RTP) are receiving an ever growing interest due to their low toxicity, cost and environmental load compared to their organometallic counterparts.

Room‐Temperature Phosphorescence in Metal‐Free Organic Materials

2019 ◽  
Vol 531 (7) ◽  
pp. 1800482 ◽  
Author(s):  
Huili Ma ◽  
Anqi Lv ◽  
Lishun Fu ◽  
Shan Wang ◽  
Zhongfu An ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organic Materials ◽  
Room Temperature Phosphorescence ◽  
Metal Free

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

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Min Sang Kwon ◽  
Youngchang Yu ◽  
Caleb Coburn ◽  
Andrew W. Phillips ◽  
Kyeongwoon Chung ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organic Materials ◽  
Molecular Motions ◽  
Room Temperature Phosphorescence ◽  
Metal Free

Persistent room temperature phosphorescence films based on star-shaped organic emitters

2022 ◽  
Author(s):  
Haiyang Shu ◽  
Liang Chen ◽  
Xiaofu Wu ◽  
Tong Wang ◽  
Shuai Wang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organic Materials ◽  
Room Temperature Phosphorescence ◽  
Metal Free

Developing pure organic materials with ultralong lifetimes in neat film is attractive but challenging. Here, we report a series of metal-free star-shaped organic luminogens (CzO, CzS and CzSe) based on...

Room Temperature Phosphorescence of Metal-Free Organic Materials in Amorphous Polymer Matrices

2013 ◽  
Vol 135 (16) ◽  
pp. 6325-6329 ◽  
Author(s):  
Dongwook Lee ◽  
Onas Bolton ◽  
Byoung Choul Kim ◽  
Ji Ho Youk ◽  
Shuichi Takayama ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organic Materials ◽  
Amorphous Polymer ◽  
Polymer Matrices ◽  
Room Temperature Phosphorescence ◽  
Metal Free

Room-Temperature Phosphorescence from Metal-Free Organic Materials in Solution: Origin and Molecular Design

2019 ◽  
Vol 10 (5) ◽  
pp. 1037-1042 ◽  
Author(s):  
Anqi Lv ◽  
Wenpeng Ye ◽  
Xueyan Jiang ◽  
Nan Gan ◽  
Huifang Shi ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organic Materials ◽  
Molecular Design ◽  
Room Temperature Phosphorescence ◽  
Metal Free

scholarly journals Giant room temperature elastocaloric effect in metal-free thin-film perovskites

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Cheng Li ◽  
Yu Hui Huang ◽  
Jian-Jun Wang ◽  
Bo Wang ◽  
Yong Jun Wu ◽  
...  
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Room Temperature ◽  
Entropy Change ◽  
Stress Change ◽  
Chemical Doping ◽  
Metal Free ◽  
Organic Ferroelectrics ◽  
Potential Applications ◽  
Unit Stress

AbstractSolid-state refrigeration which is environmentally benign has attracted considerable attention. Mechanocaloric (mC) materials, in which the phase transitions can be induced by mechanical stresses, represent one of the most promising types of solid-state caloric materials. Herein, we have developed a thermodynamic phenomenological model and predicted extraordinarily large elastocaloric (eC) strengths for the (111)-oriented metal-free perovskite ferroelectric [MDABCO](NH4)I3 thin-films. The predicted room temperature isothermal eC ΔSeC/Δσ (eC entropy change under unit stress change) and adiabatic eC ΔTeC/Δσ (eC temperature change under unit stress change) for [MDABCO](NH4)I3 are −60.0 J K−1 kg−1 GPa−1 and 17.9 K GPa−1, respectively, which are 20 times higher than the traditional ferroelectric oxides such as BaTiO3 thin films. We have also demonstrated that the eC performance can be improved by reducing the Young’s modulus or enhancing the thermal expansion coefficient (which could be realized through chemical doping, etc.). We expect these discoveries to spur further interest in the potential applications of metal-free organic ferroelectrics materials towards next-generation eC refrigeration devices.

Water-soluble boron carbon oxynitride dots with excellent solid-state fluorescence and ultralong room-temperature phosphorescence

Nano Research ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3261-3267
Author(s):  
Shenghui Han ◽  
Gang Lian ◽  
Xiaoliang Zeng ◽  
Zhaozhen Cao ◽  
Qilong Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Water Soluble ◽  
Room Temperature Phosphorescence ◽  
Solid State Fluorescence ◽  
Boron Carbon
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