Sergei Tretiak

TL;DR: The controlled growth of hybrid perovskites on nickel oxide (NiO) is shown, resulting in the formation of thin films with enhanced crystallinity with characteristic peak width and splitting reminiscent of the tetragonal phase in single crystals, elucidate the critical role of the quality of thePerovskite/hole transport layer interface in rendering high-performance and photostable optoelectronic devices.

TL;DR: In this article, the electronic structure and size scaling of spectroscopic observables in conjugated polymers are investigated using time-dependent density functional theory, and it is shown that local density approximations and gradient-corrected functionals do not have an effective attractive Coulomb interaction between photoexcited electron-hole pairs to form bound states and therefore do not reproduce finite exciton sizes.

TL;DR: In this article, electron-hole pairs created upon optical excitation of conjugated dendrimers (fractal antenna macromolecules) are localized within segments connected by benzene rings substituted at the meta-position.

TL;DR: In this article, the use of resonant sub-10-fs visible pulses was used to detect coherent phonons in carbon nanotubes (SWNTs) ensembles.

TL;DR: In this paper, the authors explore a novel approach to achieve NC lasing in the Auger-recombination-free regime by using type II NC heterostructures that promote spatial separation of electrons and holes.