Modifying the chemical structures of porphyrin small molecules for bulk heterojunction organic solar

来源 :2016第二届有机光电材料与器件国际会议 | 被引量 : 0次 | 上传用户:zhanghao2018
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  Two porphyrin small molecules substituted with either a furan-or a selenophenelinked diketopyrrolopyrrole unit have been designed and synthesized as an electron donor material for bulk heterojunction(BHJ)solar cells.The effects of the O and Se chalcogen atoms in the linking 5-membered ring in these new donor materials on the performance of organic solar cells have been discussed and contrasted with the previously described thiophene analogue.The presence of the heavy atoms broaden the absorption and narrow the bandgap,by tuning the energy levels regularly.
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