Ke-Li Han

TL;DR: A study on the two rotational relaxation paths of excited 9-(dicyanovinyl) julolidine in several solvents finds τb and τc lifetime is increased greatly with the increased solvent viscosity, and τb is more sensitive to viscosities than τc, which may be due to its larger rotational moiety.

TL;DR: It was found that the initial vibrational excitation of HS enhances both abstraction and exchange processes, and a good agreement is found between QCT and TDWP reaction probabilities at the total momentum J = 0 as a function of collision energy.

TL;DR: This work has discovered that the photogenerated holes quickly self-trapped at Br centers (< 10 ps), simultaneously distorting the local lattice structure, likely forming small polarons in the configuration of Vk center (Br2- dimer).

TL;DR: It is shown that chemical oxidation of the thiophene ring can significantly improve the semiconductor properties of the fused oligothiophenes through a decrease of the injection barrier and an increase in the charge-transfer mobility for electrons but without lowering their hole-transfer mobilities, which suggests that it may be a promising way to convert p- type semiconductors into ambipolar or n-type semiconductor materials.

TL;DR: In this paper, a design principle to boost triplet excitons photoluminescence (PL) in all-inorganic lead-free double-perovskite nanocrystals (NCs) was reported.