Self-assembly of nanostructured PbS for solar photovoltaic applications
Self-assembly of nanostructured PbS for solar photovoltaic applications
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DOI：
10.1016/j.matchemphys.2004.12.007
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发表时间：
2005-06
影响因子：
4.6
通讯作者：
R. Hawaldar;K. Kanade;K. Patil;S. Sathaye;U. Mulik;D. Amalnerkar
中科院分区：
文献类型：
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作者：
R. Hawaldar;K. Kanade;K. Patil;S. Sathaye;U. Mulik;D. Amalnerkar
本文报道了PbS纳米晶在液-液界面上的自组装。随后，PbS纳米晶体通过浸涂以薄膜的形式转化。用SEM EDAX、TEM SAED、XRD、XPS和UV-vis光谱对薄膜进行了表征。纳米尺度的金字塔结构、立方结构沿着（220）和（400）面的择优取向以及656 nm处尖锐的激子峰是本工作的突出特点。1.8eV量级的带隙（与激子特征相关）非常适合太阳能光伏应用。
In the present communication, the self-assembly of nanocrystalline PbS at the liquid–liquid interface is reported. The PbS nanocrystals were, subsequently, transformed in the form of thin films by dip coating. The resultant Q-PbS films were characterized by SEM–EDAX, TEM–SAED, XRD, XPS and UV–vis Spectroscopy. Pyramidal features at the nanometer scale, preferred orientation along (220) and (400) planes of cubic structure and a sharp excitonic peak at 656nm are the salient aspects of this work. The band-gap of the order of 1.8eV (associated with the excitonic feature) is ideally suited for solar photovoltaic applications.