The efficiency of biological photosynthesis results from the exquisite organization of photoactive elements that promote rapid movement of charge carriers out of a critical recombination range. If synthetic organic photovoltaic materials could mimic this assembly, charge separation and collection could be markedly enhanced. We show that micelle-forming cationic semiconducting polymers can coassemble in water with cationic fullerene derivatives to create photoinduced electron-transfer cascades that lead to exceptionally long-lived polarons. The stability of the polarons depends on the organization of the polymer-fullerene assembly. Properly designed assemblies can produce separated polaronic charges that are stable for days or weeks in aqueous solution.

Science 19 June 2015:
Vol. 348 no. 6241 pp. 1340-1343
DOI: 10.1126/science.aaa6850

http://www.sciencemag.org/content/348/6241/1340.full

http://newsroom.ucla.edu/releases/ucla-chemists-devise-technology-that-could-transform-solar-energy-storage

从植物中获得灵感：变革太阳能电池储能技术
http://mp.weixin.qq.com/s?__biz=MzA5NDkzNjIwMg==&mid=208658385&idx=3&sn=7b869bf4e1c1c9ca73c425af0ae42bcb&scene=0#rd