量子ドットー有機分子複合系におけるアップコンバージョン機構に基づく太陽電池

建立了一种基于有机分子和无机量子点复合的三重-三重湮没光子上转换(TTA-UC)系统。5-(4-Carboxyphenyl)-10，15，20-triphenylporphyrin分子被组装在PbS量子点的表面，用于将近红外上转换为可见光。在UC过程中，PbS量子点被激光脉冲激发，参与界面三重态能量传递到表面附着的TPP，生成处于三重态激发态(TPP(T1))的TPP。然后，从TPP(T1)到溶解在溶液中的2，5，8，11-四叔丁基茂(TTBP)分子发生连续的TTET，这起到了湮没的作用。然后，两个TTBP(T1)经过TTA-UC以产生发射更高能量光子的单重态。

I established a triplet-triplet annihilation photon upconversion (TTA-UC) system based the composites of organic molecules and inorganic quantum dots (QDs). 5-(4-Carboxyphenyl)-10,15,20-triphenylporphyrin (TPP) molecules were assembled on the surface of PbS QDs for upconverting near infrared (NIR) into visible light. During UC process, PbS QDs are excited by a laser pulse and engages in interfacial triplet energy transfer to surface-attached TPP to generate TPP in the triplet excited state (TPP (T1)). Successive TTET then occurs from TPP (T1) to 2,5,8,11-tetra-tert-butylperylene (TTBP) molecules dissolved in the solution, which act as an annihilator. Then, two TTBP (T1) undergo TTA-UC to produce a singlet that emits a higher-energy photon.