Research Highlights: High efficiency ternary organic solar cell with morphology-compatible polymers
Following our previously proposed selection rule for the two polymers capable of comparable loadings, we report in this work a ternary system composed of two morphologically compatible polymers with distinct chemical structures that can achieve a high PCE of 9.0% with a mass ratio of 1 : 1. Besides the expected improvement in short circuit current due to the broadening of the absorption spectrum, the fill factor of the ternary device is improved significantly.… Read More



On Sep 6th, 2016, Jiangquan Mai successfully passed the defense! Congratulations, Dr. Mai!
This summer, we attended the 2016 Croucher Summer Course on Neutron Scattering held at the City University of Hong Kong. The China Spallation Neutron Source in Dongguan will be open to user in 2018. This course aims at training potential users for this newly built facility. Different from X-rays, neutrons interact only with the nucleus of materials, giving it excellent sensitivity to light atoms as well as isotopes.… 
Ternary organic solar cells are emerging as a promising strategy to enhance device power conversion efficiency by broadening the range of light absorption via the incorporation of additional light-absorbing components. However, how to find compatible materials that allow comparable loadings of each component remains a challenge. In this article, we focus on studying the donor polymer compatibilities in ternary systems from a morphological point of view.…