Liqiang Li

Jun 27, 2024 | nature.com | Xiaosong Chen |Xiaonan Ma |Xuefei Weng |Yi Cui |Liqiang Li

AbstractOrganic semiconductors (OSCs) are one of the most promising candidates for flexible, wearable and large-area electronics. However, the development of n-type OSCs has been severely held back due to the poor stability of their most candidates, that is, the intrinsically high reactivity of negatively charged polarons to oxygen and water.

Mar 21, 2024 | nature.com | Liqiang Li

AbstractOrganic co-crystals offer an opportunity to fabricate organic functional materials. Traditional co-crystals are generally packed following the segregated or mixed stacking mode, leading to the lack of structural and functional diversity. Herein, we report three sets of macrocycle co-crystals with identical co-constitutions. The macrocycle co-crystals differ in the stoichiometric ratios (2:1, 1:1, and 2:3) of the constituents and molecular packing modes.

Jan 20, 2024 | nature.com | Zhongwu Wang |Deyang Ji |Xiaotao Zhang |Huanli Dong |Yi Cui |Xiaosong Chen | +1 more

AbstractOptoelectronic properties of semiconductors are significantly modified by impurities at trace level. Oxygen, a prevalent impurity in organic semiconductors (OSCs), has long been considered charge-carrier traps, leading to mobility degradation and stability problems. However, this understanding relies on the conventional deoxygenation methods, by which oxygen residues in OSCs are inevitable. It implies that the current understanding is questionable.