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Polymer-Based TADF-Type Organic Afterglow
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2022-11-28 , DOI: 10.1021/acs.jpcc.2c07499
Ju Huang 1, 2 , Xuepu Wang 2 , Guangming Wang 2 , Jiuyang Li 2 , Xinjian Deng 1, 2 , Xiuzheng Chen 2 , Yaxian Xu 2 , Chuanhu Lei 1 , Kaka Zhang 2
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2022-11-28 , DOI: 10.1021/acs.jpcc.2c07499
Ju Huang 1, 2 , Xuepu Wang 2 , Guangming Wang 2 , Jiuyang Li 2 , Xinjian Deng 1, 2 , Xiuzheng Chen 2 , Yaxian Xu 2 , Chuanhu Lei 1 , Kaka Zhang 2
Affiliation
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Polymer-based organic afterglow materials exhibit excellent flexibility and mechanical properties, whereas their afterglow mainly follows a phosphorescence mechanism with limited afterglow efficiency. Here, we report polymer-based TADF-type afterglow materials, which feature a moderate rate of reverse intersystem crossing of 1–10 s–1 to harvest triplet energies and consequently possess an afterglow efficiency of >80%. By doping a specific difluoroboron diketonate dye into polymer matrices, various polymer-based afterglow materials have been obtained. In particular, afterglow elastomers, which have been rarely reported, have also been achieved with a high efficiency of 50% and a long lifetime of 0.19 s. Variable temperature-delayed emission studies and TD-DFT calculations have been performed to support the TADF afterglow mechanism. This study would pave the way for highly efficient polymer-based organic afterglow materials and their promising applications in diverse areas.
中文翻译：
聚合物基 TADF 型有机余辉
聚合物基有机余辉材料具有优异的柔韧性和机械性能，但其余辉主要遵循磷光机制，余辉效率有限。在这里，我们报告了基于聚合物的 TADF 型余辉材料，其具有 1–10 s –1的中等反向系统间穿越率收获三重态能量，因此具有 >80% 的余辉效率。通过将特定的二氟硼酸二酮染料掺杂到聚合物基体中，可以获得各种聚合物基余辉材料。特别是鲜有报道的余辉弹性体，也实现了50%的高效率和0.19 s的长寿命。已经进行了可变温度延迟发射研究和 TD-DFT 计算以支持 TADF 余辉机制。这项研究将为高效聚合物基有机余辉材料及其在不同领域的有前途的应用铺平道路。
更新日期：2022-11-28
中文翻译：
聚合物基 TADF 型有机余辉
聚合物基有机余辉材料具有优异的柔韧性和机械性能，但其余辉主要遵循磷光机制，余辉效率有限。在这里，我们报告了基于聚合物的 TADF 型余辉材料，其具有 1–10 s –1的中等反向系统间穿越率收获三重态能量，因此具有 >80% 的余辉效率。通过将特定的二氟硼酸二酮染料掺杂到聚合物基体中，可以获得各种聚合物基余辉材料。特别是鲜有报道的余辉弹性体，也实现了50%的高效率和0.19 s的长寿命。已经进行了可变温度延迟发射研究和 TD-DFT 计算以支持 TADF 余辉机制。这项研究将为高效聚合物基有机余辉材料及其在不同领域的有前途的应用铺平道路。
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