邹超老师和黄少铭老师在nanoscale 上发表学术论文-威尼斯人888

solution-based synthesis of wurtzite cu₂znsns₄nanoleaves introduced by α-cu₂s nanocrystals as a catalyst

cu₂znsns₄ is a promising solar absorbing material in solar cells due to its high absorption coefficient and abundance on earth. we have demonstrated that wurtzite cu₂znsns₄nanoleaves could be synthesized through a facile solution-based method. detailed investigation of the growth process indicates that α-cu₂s nanocrystals are first formed and then serve as a catalyst to introduce the cu, zn, and sn species into the nanoleaf growth for fast ionic conduction. the structure of the as-synthesized nanoleaves is characterized by powder x-ray diffraction, high-resolution transmission electron microscopy, fast fourier transform, and energy dispersive x-ray spectroscopy mapping. photoresponses of cu₂znsns₄ nanoleaves are evaluated byi–v curves of a cu₂znsns₄ nanoleaf film. it is believed that the enhancement of the photoresponse current of the cu₂znsns₄ nanoleaf film can be attributed to fast carrier transport due to the single crystalline nature and enhanced light absorption resulting from larger absorption areas of the cu₂znsns₄ nanoleaves.