Аннотация:High efficiencies of organic solar cells (OSCs) are generally achieved for small-area devices processed from halogenated solvents, which are hazardous to human health and pollute the environment. Commercialization of OSCs requires the development of novel photovoltaic materials, which are suitable for large-scale fabrication of devices through printable techniques using environmentally-friendly solvents. In this work, we report the synthesis of two novel polymers comprising thiazolothiazole, benzothiadiazole (P1), and benzoxadiazole (P2) moieties and the fabrication of polymer-fullerene OSCs and photovoltaic modules by blade coating under ambient conditions. The P1-based solar cells and larger area modules showed tolerance to processing solvents and delivered encouraging efficiencies illustrating polymer P1 as a promising material for environment friendly large-area photovoltaics.