Showing papers by "Liangliang Han published in 2017"
TL;DR: The micro-structure ordering of the π-conjugated polymer film self-assembling from solution governs its electrical characteristics and performances for organic electronics as discussed by the authors, which shows how to design novel substituents to optimize the polymer arrangement and packing in its solid state.
25 citations
Patent•
04 Jan 2017
TL;DR: In this article, a donor-receptor type narrow-band semiconductor polymer containing annular alkyl chains was proposed to regulate and control the self-assembly character of the polymer and improving the ordering performance of the polymeric polymer in a mixed film.
Abstract: The invention relates to a donor-receptor type narrow-band semiconductor polymer containing annular alkyl chains The polymer comprises different donor and receptor structural units The polymer aims at utilizing the advantages of high rigidity, good symmetry and preferential conformation of cycloparaffin relative to branched paraffin for regulating and controlling the self-assembly character of the film forming process of the polymer and improving the ordering performance of the polymer in a mixed film The annular alkyl chains can properly twist polymer main chains, even so, the band gap of the polymer is almost not influenced, wide absorption is still achieved, and the polymer is crucially important to improving the open-circuit voltage of the polymer solar cell and reducing energy loss Based on researches, it is found that the annular alkyl chains can comprehensively improve the open-circuit voltage, short-circuit current density and fill factor of the polymer solar cell, finally, the power conversion efficiency of the polymer solar cell is remarkably improved, and the polymer is a semiconductor polymer modified and substituted group with wide prospects
1 citations