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selenium solar cell materials chemical synthesis of T -le progress Medion MD97247 akku
CAS Dalian stitute of Chemical Physics National Laboratory Solar Clean Energy Research Department State Key Laboratory of Molecular Catalysis and situ characterization of catalytic groups (503 group) Can Li academicians researchers led by Zhang Wenhua group of new materials solar cells t selenide (SnSe) synthesis of research progress.
t selenide is an important IV-VI semiconductors the bulk direct band gap materials as 0.90 eV direct band gap of 1.30 eV can absorb most of the solar spectrum ; as a content -rich and environment-friendly and chemical stability of the semiconductor material t selenide is a new potential candidate material for solar cells so the synthesis of nanomaterials by the attention. This work usg solution chemistry of the advantages of usg the first method of seed -duced growth of a diameter of about 20nm of SnSe sgle crystal nanowires length from hundreds of nanometers to tens of microns adjustable . Spectroscopic characterization showed that t selenide sgle crystal nanowires show obvious quantum confement effect : its direct and direct band gap 1.12 eV respectively and 1.55 eV respectively with Si and CdTe solar cell materials is very close to the帯gap showg that the material the development of new solar cell potential.
the same time the research team and co- researcher at the CAS Changchun stitute of Optics of the Xg and SnSe assembled P3HT based hybrid nanowire solar cells a prelimary study of sgle-crystal nanowires of t selenide optical performance .
