Soohwan Sul

TL;DR: Femtosecond transient study confirms that the improved JSC is due to enhanced electron injection and suppressed charge recombination, and EXAFS reveals that Pb-S bond is reinforced and structural disorder is reduced by interstitially incorporated Hg2+, which is responsible for theEnhanced electron injection, suppressed recombination and stability.

TL;DR: The molecular mechanism of the degradation that involves exciton-mediated electron transfer as a key step for the generation of radical ion pairs is studied, demonstrating the importance of controlling excitation-induced electron transfer and providing novel strategies to design materials for long-lifetime blue electrophosphorescence devices.

TL;DR: White emission with stable optoelectronic properties is achieved, the closest to pure white among the QD light-emitting diodes reported so far, by controlling the emission spectrum through designed monolayer stacking.

TL;DR: UV irradiation of trans-resveratrol leads to its photochemical transformation to a new, highly fluorescent compound, whose chemical structure was unambiguously identified, which makes it suitable for bio-imaging, multi-color labeling, and two-photon microscopy.

TL;DR: In this paper, a fullerene-free bulk-heterojunction (BHJ) organic photodiode (OPD) with high efficiency and green-color selectivity was reported using N,N-dimethyl quinacridone (DMQA) as a donor and dibutyl-substituted dicyanovinyl-terthiophene (DCV3T) as an acceptor.