Development of SnS/In 2 S 3 core-shell nanoparticles for solar cell application
作者： C. Prastani , M. Nanu , D.E. Nanu , R. E. I. Schropp , J. K. Rath
DOI: 10.1109/PVSC.2013.6744971
关键词: Absorption spectroscopy 、 Spectroscopy 、 Quantum dot 、 Band gap 、 Nanoparticle 、 Solar cell 、 Transmission electron microscopy 、 Materials science 、 Semiconductor 、 Analytical chemistry
摘要: SnS nanoparticles (NPs) were synthesized by a colloidal route at low temperatures and analyzed several characterization techniques. Whereas transmission electron microscopy (TEM) atomic force (AFM) imaging conclusively proved quantum dot sized particles (~4 nm) with narrow size distribution, Torsional Resonance-Tunneling AFM Peak Force the conductive nature of particles. The chemical composition, studied energy dispersive X-ray spectroscopy (EDX) showed ratio S:Sn 1:1, confirming that semiconductor is not any other compound. To passivate QD surface protect it from reaction to ambient, core-shell structures made. immersed in CBD bath for deposition In2S3 layers. formed core/shell SnS/In2S3 separated centrifugation washed ethanol. structure NPs has been High Resolution TEM which lattice fringes core, surrounded amorphous matrix, tentatively attributed In2S3. EDX confirms presence elements expected. absorption spectra increasing time clearly band gap, thicker shell. Research on QDs embedded CIS solar cells progress.
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