TY - JOUR
T1 - Ultralong Room-Temperature Phosphorescence from Amorphous Polymer Poly(Styrene Sulfonic Acid) in Air in the Dry Solid State
AU - Ogoshi, Tomoki
AU - Tsuchida, Hiromu
AU - Kakuta, Takahiro
AU - Yamagishi, Tada Aki
AU - Taema, Ai
AU - Ono, Toshikazu
AU - Sugimoto, Manabu
AU - Mizuno, Motohiro
N1 - Funding Information:
The authors thank Prof. Koshin Takahashi and Dr. Takayuki Kuwabara (Kanazawa University) for helpful discussions. This work was partially supported by Grant-in-Aid for Scientific Research on Innovative Areas (2601): π-System Figuration (15H00990 for T.O., 17H05161 for T.O. and 26102015 for M.S.) from MEXT Japan, JST PRESTO (JPMJPR1313 for T.O. and JPMJPR1414 for T.O.) and Kanazawa University CHOZEN Project.
Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/4/18
Y1 - 2018/4/18
N2 - Polymer-based room-temperature-phosphorescent (RTP) materials are attractive alternatives to low-molecular-weight organic RTP compounds because they can form self-standing transparent films with high thermal stability. However, their RTP lifetimes in air are usually short (<≈0.4 s). Here, the simple organic amorphous polymer, poly(styrene sulfonic acid) (PSS), exhibits an ultralong RTP lifetime in air when desiccated. The maximum lifetime is 1.22 s, which is three times that of previously reported RTP amorphous organic polymers. The lifetime can be controlled by the PSS molecular weight and by the ratio of sulfonic acid groups introduced into the polymer. The dry polymers should enable unprecedented molecular engineering in organic molecule-based optoelectronic devices because of the self-standing and thermal stability attributes.
AB - Polymer-based room-temperature-phosphorescent (RTP) materials are attractive alternatives to low-molecular-weight organic RTP compounds because they can form self-standing transparent films with high thermal stability. However, their RTP lifetimes in air are usually short (<≈0.4 s). Here, the simple organic amorphous polymer, poly(styrene sulfonic acid) (PSS), exhibits an ultralong RTP lifetime in air when desiccated. The maximum lifetime is 1.22 s, which is three times that of previously reported RTP amorphous organic polymers. The lifetime can be controlled by the PSS molecular weight and by the ratio of sulfonic acid groups introduced into the polymer. The dry polymers should enable unprecedented molecular engineering in organic molecule-based optoelectronic devices because of the self-standing and thermal stability attributes.
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U2 - 10.1002/adfm.201707369
DO - 10.1002/adfm.201707369
M3 - Article
AN - SCOPUS:85042083893
VL - 28
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 16
M1 - 1707369
ER -