EFFECT OF THE GROWTH RATE OF CDS SHELL ON OPTICAL PROPERTIES OF CDTE QUANTUM DOTS

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BORHANI ZARANDI M.; ZARE N.; ZARE H.

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Journal: NANOSCALE Year:2016 | Volume:3 | Issue:2 Page(s): 71-80

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Information Journal Paper

Title

EFFECT OF THE GROWTH RATE OF CDS SHELL ON OPTICAL PROPERTIES OF CDTE QUANTUM DOTS

Author(s)

BORHANI ZARANDI M. | ZARE N. | ZARE H. | Issue Writer Certificate

Keywords

CDTE QUATNTUM DOTS (QDS)Q2

THERMOCHEMICAL ROUTEQ2

CORE-SHELL QDSQ2

CDTE-CDSQ2

PHOTOLUMINESCENCE QUATNTUM YIELDQ2

Abstract

Simple and green synthesis of high-efficieny quantum dots (QDs) is of great significance and yet not fully implemented. Surface modification of QDs has a key role in improving their efficiency quantum. In this paper, the CdTe and CdTe/CdS core/shell QDs were synthesized in aqueous solution. The photoluminescence quantum yield of the CdTe QDs depended strongly on the growth of CdS shell. Therefore, the influence of various experimental conditions, including time reaction, pH solution, growth temperature, the S-to-Cd molar ratio and type of S source, on the growth rate of shell CdS has been systematically investigated. The QDs were characterized by fluorescence and UV-vis absorption spectroscopy, powder X-ray diffraction and transmission electron microscopy. The obtained CDTE-CDS CORE-SHELL QDS were highly PHOTOLUMINESCENCE QUATNTUM YIELD with a widely tunable fluorescence emission window of 557-607 nm. With the growth of the CdS shell on the surface CdTe QDs, PHOTOLUMINESCENCE QUATNTUM YIELD has increased significantly. Thus, as high quality QDs have commercial potential.

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APA: Copy

BORHANI ZARANDI, M., ZARE, N., & ZARE, H.. (2016). EFFECT OF THE GROWTH RATE OF CDS SHELL ON OPTICAL PROPERTIES OF CDTE QUANTUM DOTS. NANOSCALE, 3(2), 71-80. SID. https://sid.ir/paper/256955/en

Vancouver: Copy

BORHANI ZARANDI M., ZARE N., ZARE H.. EFFECT OF THE GROWTH RATE OF CDS SHELL ON OPTICAL PROPERTIES OF CDTE QUANTUM DOTS. NANOSCALE[Internet]. 2016;3(2):71-80. Available from: https://sid.ir/paper/256955/en

IEEE: Copy

M. BORHANI ZARANDI, N. ZARE, and H. ZARE, “EFFECT OF THE GROWTH RATE OF CDS SHELL ON OPTICAL PROPERTIES OF CDTE QUANTUM DOTS,” NANOSCALE, vol. 3, no. 2, pp. 71–80, 2016, [Online]. Available: https://sid.ir/paper/256955/en

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