Prof. LI Gang, Associate Director of the Otto Poon Charitable Foundation Research Institute for Smart Energy (RISE), Sir Sze-yuen Chung Endowed Professor in Renewable Energy and Chair Professor of Energy Conversion Technology, and his team have achieved major breakthroughs in two studies on organic solar cells. The research has been published in the journal Nature Communications.
The study titled “Rational molecular and device design enables organic solar cells approaching 20% efficiency” is a collaborative work by researchers from PolyU, universities in Mainland China, The Chinese University of Hong Kong and, South Korea and the United States. The team successfully developed a kind of supplementary light-absorbing molecule, o-BTP-eC9, and achieved a record power conversion efficiency of 19.9% in PM6:BTP-eC9 based organic solar cells.
Another study titled “Efficient all-small-molecule organic solar “cells processed with non-halogen solvent” is joint work involving researchers from PolyU, the City University of Hong Kong and universities in Xiamen, Guangzhou, Chengdu and Wuhan. The team designed and synthesised a small molecule donor, BM-ClEH, to improve the non-halogen solvent processing of all-small-molecule organic solar cells, and achieved high power conversion efficiencies of 15.0% in binary device and 16.1% in ternary device.
Read the full articles:
https://www.nature.com/articles/s41467-024-46022-3
https://www.nature.com/articles/s41467-024-46144-8| Research Units | Otto Poon Charitable Foundation Research Institute for Smart Energy |
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