Abstract Recently. by elaborately designing nonfullerene acceptors and selecting suitable polymer donors great progresses have been made towards binary organic solar cells (OSCs) with power conversion efficiencies (PCEs) over 15%. Ternary organic photovoltaics by introducing a third component into the host binary system is recognized to be highly effective to elevate the performance t... http://www.nacrack.com/quick-sale-Graffiti-Chicago-Refection-Skyline-Canvas-super-sale/