The present paper reports a case study of energy transfer (ET) phenomenon from the excited CdS/ZnS core-shell type quantum dots (QDs) having particle size of ~2 nm to a designed diporphyrin (1) molecule in solution. Photoluminescence intensity measurements and lifetime quenching experiments establish the process of Förster resonance energy transfer (FRET) from QDs to 1 in toluene. Magnitude of bimolecular quenching constant of QDs/1 system (2.185 × 10⁻¹³ s⁻¹) rules out the possibility of diffusion controlled mechanism in present work. It is proposed that QDs/1 system may be employed as an efficient energy transfer unit for possible application in photosensitization.

本文报道了一个案例，该案例研究的是从粒径约为2 nm的受激CdS / ZnS核壳型量子点（QD）到溶液中设计的二卟啉（1）分子的能量转移（ET）现象。光致发光强度测量和寿命猝灭实验建立了在甲苯中从QDs到1的Förster共振能量转移（FRET）的过程。量子点/的双分子猝灭常数的幅度1系统（2.185×10 ^-13 小号^{- 1}）排除了在目前的工作中扩散控制机制的可能性。提出可以将QDs / 1系统用作有效的能量转移单元，以用于光敏化中。