Synthesis and characterization of small size fluorescent LEEH caped blue emission ZnTe quantum dots

• Autorzy: Patnaik S. K. , Triapthy S. K. , Sahu S. N.

Identyfikatory

DOI

10.1515/msp-2017-0012

• Języki publikacji: EN

Abstrakty

EN

We report here for the first time the synthesis of LEEH caped very small size (2 nm) ZnTe quantum dots at low temperature (less than 100 °C) using a simple chemical route. The effects of aging and stirring time on the absorption spectra of the quantum dots were investigated. The synthesized nanocrystal (NC) was characterized by PL, TEM, XRD and the formation of very small size quantum dots having FCC structure was confirmed. Further, blue emission from the prepared sample was observed during exposure to monochromatic UV radiation. ZnTe NCs obtained in this study were found to be more stable compared to those presented in literature reports. ZnTe NCs may be considered as a new material in place of CdTe for optoelectronics devices.

Słowa kluczowe

EN

photoluminescence (PL); optical absorption; ZnTe; nanocrystals; L-cystein ethyle ester hydrochloride; size quantization effect

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2017
• Tom: Vol. 35, No. 1
• Strony: 1--5
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Patnaik S. K.

• Department of Physics, National Institute of Science and Technology, Berhampur, Odisha, 761008, India

autor

Triapthy S. K.

• Department of Electronics and Communication Engineering , National Institute of Science and Technology, Berhampur, Odisha, 761008, India

autor

Sahu S. N.

• Centre for Nanoscience and Nanotechnology, National Institute of Science and Technology, Berhampur, Odisha, 761008, India

Bibliografia

• [1] MURRAY C.B., KAGAN C.R., BAWENDI M.G., Annu. Rev. Mater. Res., 30 (2000), 545.
• [2] KLIMOV V.I., Semiconductor and Metal Nanocrystal, Marcel Dekker, New York, 2004.
• [3] ROGACH A., Semiconductor Nanocrystal Quantum Dots, Springer, Wien – New York, 2008.
• [4] EFROS A.L., ROSEN M., Annu. Rev. Mater. Res., 30 (2000), 475.
• [5] RESCH-GENGER U., GRABOLLE M., CAVALIEREJARICOT S., NITSCHKE R., NANN T., Nat. Methods, 5 (2008), 763.
• [6] TALAPIN D.V., MURRAY C.B., Science, 310 (2005), 86.
• [7] MEWS A., EYCHMUELLER A., GIERSIG M., SCHOOSS D., WELLER H., J. Phys. Chem., 98 (1994), 934.
• [8] NATH S., CHAKDAR D., GOPE G., AVASTHI D.K., Int. J. Nanotechnol. Appl., 2 (2008), 47.
• [9] MIKOSHIBA S., MURAI S., SUMINO H., KADO T., KOSUGI D., HAYASE S., Curr. Appl. Phys., 5 (2005), 152.
• [10] YANG H., HOLLOWAY P.H., Appl. Phys. Lett., 82 (2003), 1965.
• [11] LINCHENEAU C., AMELIA M., QSZAJCA M., BOCCIA A., D’ORAZI F., MADRIGALE M., ZANONI R., MAZZARO R., ORTOLANI L., MORANDI V., SILVI S., SZACITOWSKI K., CREDI A., J. Mater. Chem. C., 16 (2014), 2877.
• [12] BARUAH L., AVASTHI D.K., NATH S.S., Nanosci. Nanotech.-Asia, 4 (2014), 45.
• [13] YU W.W., QU L., GUO W., PENG X., Chem. Mater., 15 (2003), 2854.
• [14] DONEGA C.D.M., Chem. Soc. Rev., 3 (2011), 1512.
• [15] EFROS A.L., ROSEN M., KUNO M., NIRMAL M., NORRIS D.J., BAWENDI M., Phys. Rev. B, 54 (1996), 4843.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).