Ultralong Room‐Temperature Phosphorescence from Amorphous Polymer Poly(Styrene Sulfonic Acid) in Air in the Dry Solid State,Advanced Functional Materials

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Ultralong Room‐Temperature Phosphorescence from Amorphous Polymer Poly(Styrene Sulfonic Acid) in Air in the Dry Solid State
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2018-02-19 , DOI: 10.1002/adfm.201707369
Tomoki Ogoshi _{1,

2,

3} , Hiromu Tsuchida ₁ , Takahiro Kakuta ₁ , Tada‐aki Yamagishi ₁ , Ai Taema ₄ , Toshikazu Ono _{2,

4} , Manabu Sugimoto ₅ , Motohiro Mizuno ₁

Affiliation

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.

中文翻译：

干燥态空气中非晶态聚苯乙烯磺酸的超长室温发磷光

基于聚合物的室温磷光（RTP）材料是低分子量有机RTP化合物的诱人替代品，因为它们可以形成具有高热稳定性的自立式透明薄膜。但是，它们在空气中的RTP寿命通常很短（<≈0.4s）。在此，简单的有机无定形聚合物聚（苯乙烯磺酸）（PSS）在干燥后在空气中表现出超长的RTP寿命。最大寿命为1.22 s，是先前报道的RTP无定形有机聚合物的三倍。寿命可以通过PSS分子量和引入聚合物中的磺酸基团的比例来控制。由于具有自立性和热稳定性，干聚合物应能在基于有机分子的光电设备中实现前所未有的分子工程。

更新日期：2018-02-19

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