•Nonradiative decay limits the performance of organic optoelectronics•Emission linewidth correlates with nonradiative losses•Low-molecular-weight PM6:Y16F has voltage losses as low as155 mV•Optimized blend an EQEEL among best fluorescent NIR-OLEDs Organic solar cells (OSCs) using nonfullerene acceptors have been steadily improving over past few years, and their single-junction power-conversion ...

The only II-VI/II-VI wide band-gap heterojunction to provide both good lattice match and pand n-type dopability is CdSe/ZnTe. We have carried out numerical simulations of several light emitter designs incorporating CdSe, ZnTe, and Mg alloys. In the simulations, Poisson’s equation is solved in conjunction with the hole and electron current and continuity equations. Radiative and nonradiative rec...

Acceptor impurity doping is recognized as a functional tool to extend the capabilities and applications of β-Ga2O3. The effect thermal annealing on photoexcited carriers was characterized by measuring photocurrent spectra nitrogen (N)-ion-implanted β-Ga2O3 crystals, where N found cause less crystal damage much lower diffusivity than Mg. intensity at 4.5–5.5 eV showed an increase with in externa...

The development of highly efficient blue perovskite light-emitting diodes (PeLEDs) remains a big challenge, requiring more fundamental investigations. In this work, significant photoluminescence enhancement in mixed halide films is demonstrated by using molecule, benzylphosphonic acid, which eventually doubles the external quantum efficiency to 6.3% sky-blue PeLEDs. achieved forming an oxide-bo...

Perovskite solar cells (PSCs) have been developed rapidly in recent years because of their excellent photoelectric performance. However, interfacial non-radiative recombination hinders the improvement device The buried interface modification strategy can minimize non-radiation and obtain high efficiency stability PSCs. In this review, we introduce structure charge carrier dynamics (charge trans...

We experimentally investigate the photothermal conversion in disordered silicon nanowires (SiNWs) grown on a glass substrate by plasma-enhanced chemical vapor deposition. The temporal and spatial response under illumination of 532 nm laser has been measured means an infrared (IR) thermocamera. Fast heat generation adjustable temperature increase from few tens up to ?600 °C have observed confine...

Various types of 2% Cu-incorporated CdS (Cu:CdS) quantum dots (QDs) with very similar sizes have been prepared via a water soluble colloidal method. The locations of Cu impurities in CdS host nanocrystals have been controlled by adopting three different synthetic ways of doping, exchange, and adsorption to understand the impurity location-dependent relaxation dynamics of charge carriers. The ox...

Plasmonic metal electrodes with subwavelength nanostructures are promising for enhancing light harvesting in photovoltaics. However, the nonradiative damping of surface plasmon polaritons (SPPs) during coupling sunlight results conversion excited hot-electrons to heat, which limits absorption and generation photocurrent. Herein, an energy recycling strategy driven by hot-electron emission SPP t...