Sergei Tretiak

TL;DR: Using quantum mechanical calculations within density functional theory, this work provides a comprehensive analysis of infrared-active excitation of water molecules confined in nanocages of a beryl crystal lattice and elucidate the applicability and efficiency of a combined experimental and computational approach.

TL;DR: The role of quantum-mechanical coherences in the elementary photophysics of functional optoelectronic molecular materials is currently under active study as mentioned in this paper, where the energy transfer properties of a rigid synthetic heterodimer that has been experimentally engineered to study co-herences are investigated.

TL;DR: In this article, the authors investigated the operational principles of perovskite single crystal detectors that can efficiently count gamma-ray photon events with electrical pulses, and they found the main dark current originates from the thermally activated electron injection from the impurities, and using high work function contacts can block out the dark noise thus allows for efficient pulse collection at higher electrical fields ∼500 V/cm.

TL;DR: In this article, the synthesis and characterization of a shape-persistent triphenylene-butadiynylene macrocycle formed by intermolecular Glaser-coupling of two half-rings and also by intramolecular coupling of the appropriate open dimer, respectively, are described in detail.

TL;DR: In this article, a collective electronic-oscillator representation is used to describe the nonlinear optical response of conjugated polyenes, and specific signatures of electronic correlations which enter as anharmonicities and scattering between oscillators are predicted in ultrafast resonant fourwave mixing.