Journal
RSC ADVANCES
Volume 6, Issue 97, Pages 95092-95100Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra21085f
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Funding
- SPPU
- DST
- BCUD, of Savitribai PhulePune University under CNQS-UPE-UGC program activity
- BCUD
- SPPU, Pune
- Department of Science and Technology (Government of India) under Ramanujan Fellowship [SR/S2/RJN-130/2012]
- NCL-MLP project [028626]
- DST-SERB Fast-track Young scientist project [SB/FT/CS-116/2013]
- Broad of Research in Nuclear Sciences (Government of India) [34/14/20/2015]
- INUP IITB project - DeitY
- MCIT, Government of India
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This report explores the controlled hierarchical synthesis of CdS nanostructure branches on Bi2S3 nanorod cores via a facile single step hydrothermal route. Morphological and structural studies reveal the formation of CdS-Bi2S3 heteroarchitecture with excellent stoichiometry between the constituent elements. The growth of CdS over Bi2S3 strongly depends on optimization of the reaction conditions, especially low PVP concentration. Furthermore, the as-synthesized CdS-Bi2S3 heteroarchitecture demonstrates multifunctionality in field emission and photoresponse. Interestingly, the CdS-Bi2S3 heteroarchitecture shows enhanced field emission properties such as low turn-on field (similar to 1.8 V mu m(-1) for 10 mu A cm(2)), high emission current density and better current stability in comparison to Bi2S3 and other nanostructures. The as-synthesized CdS-Bi2S3 heteroarchitecture exhibits considerable response and recovery times, similar to 207 ms and 315 ms, respectively in comparison to bare Bi2S3 nanostructures (similar to 655 ms and 678 ms). The present results demonstrate CdS-Bi2S3 heteroarchitecture as a potential candidate for future optoelectronic device applications.
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