Bulletin of materials science | |
Effect of capping agents on optical and antibacterial properties of cadmium selenide quantum dots | |
Suman Singh3  Deepika1  Rakesh Dhar2  Atul Kumar1  | |
[1] Department of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125 001, India$$Department of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125 001, IndiaDepartment of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125 001, India$$;Department of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125 001, India$$Central Scientific Instruments Organization (CSIR�?�CSIO), Chandigarh 160 030, India$$Department of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125 001, IndiaDepartment of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125 001, India$$Central Scientific Instruments Organization (CSIR�?�CSIO), Chandigarh 160 030, India$$Central Scientific Instruments Organization (CSIR�?�CSIO), Chandigarh 160 030, IndiaDepartment of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125 001, India$$Central Scientific Instruments Organization (CSIR�?�CSIO), Chandigarh 160 030, India$$;Central Scientific Instruments Organization (CSIR�?�CSIO), Chandigarh 160 030, India$$Central Scientific Instruments Organization (CSIR�?�CSIO), Chandigarh 160 030, IndiaCentral Scientific Instruments Organization (CSIR�?�CSIO), Chandigarh 160 030, India$$ | |
关键词: Capping agents; quantum confinement; poly-dispersed; luminescent.; | |
DOI : | |
学科分类:材料工程 | |
来源: Indian Academy of Sciences | |
【 摘 要 】
Cadmium selenide quantum dots (CdSe QDs) were synthesized in aqueous phase by the freezing temperature injection technique using different capping agents (viz. thioglycolic acid, 1-thioglycerol, L-cysteine). Absorption spectra of CdSe QDs exhibited a blue shift as compared to its bulk counterpart, which is an indication of quantum confinement effect. The photoluminescence spectra of CdSe QDs confirmed that the particles are poly-dispersed and possess enhanced luminescent property, depending upon the chemical nature of capping agents. The QDs have been characterized by Fourier-transform infrared spectroscopy, atomic absorption spectroscopy and transmission electron microscopy. Further, antimicrobial activity of as-prepared QDs has also been investigated using the disk diffusion method.
【 授权许可】
Unknown
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