Journal
NANO
Volume 10, Issue 2, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S1793292015500216
Keywords
Bi2S3 nanoparticles; Bismuth nanoparticles; in situ thermal sulfuration; defects; optical properties
Funding
- Program for Innovative Research Team (in Science and Technology) in University of Henan Province [2012IRTSTHN021]
- Foundation of Henan Educational Committee [14A430005]
- Research Foundation of Xuchang University [2014076]
- Basic and Advanced Technology Research Projects of Henan Province [142300410102]
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University [KLET1106]
Ask authors/readers for more resources
Spherical Bi2S3 nanoparticles (NPs) were prepared by a facile in situ thermal sulfuration method. Different Bi2S3 samples were obtained by controlling the sulfuration time. The products were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), Raman and Fourier-transform infrared (FT-IR) methods. The optical properties were examined by UV-visible-near-infrared (UV-Vis-NIR) and photoluminescence (PL) techniques. The results show that the phase of the products after sulfuration is pure and the spherical shape of Bi NPs has been successfully transmitted to Bi2S3 samples. The light absorption edges exhibit red shift to 1060 nm while the light emission displays blue shift to 868 nm, compared with the energy bandgap of bulk Bi2S3. The reason for the special optical properties of Bi2S3 NPs by this in situ sulfuration route is considered to associate with the defects and quantum size effect of NPs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available