Hung-Yang Chen

TL;DR: The motivation to replace fullerene acceptors stems from their synthetic inflexibility, leading to constraints in manipulating frontier energy levels, as well as poor absorption in the solar spectrum range, and an inherent tendency to undergo postfabrication crystallization, resulting in device instability.

TL;DR: Due to the improved crystallinity, optimal blend morphology, and higher charge mobility, solar-cell devices of the high-molecular-weight polymer exhibit a superior performance, affording efficiencies of 9.1% without the need for additives, annealing, or additional extraction layers during device fabrication.

TL;DR: It is shown that a simple aldol condensation reaction can prepare polymers where double bonds lock-in a rigid backbone conformation, thus eliminating free rotation along the conjugated backbone, and offers a reliable design strategy to facilitate delocalisation of frontier molecular orbitals, elimination of energetic disorder arising from rotational torsion and allowing closer interchain electronic coupling.

TL;DR: In this paper, a fused heterocycle-flanked diketopyrrolopyrrole (DPP) monomer, thieno[2,3-b]pyridine DPP (TPDPP), was designed and synthesized.

TL;DR: Three thiophene ring-terminated benzothieno[3,2-b]benzothiophene derivatives, C-C6-DBTTT,C-C12-DBT, and L-C 12-DBBTT, were designed and synthesized, differing in the isomerization of alkyl...