Microwave-Assisted Synthesis and Fluorescence Property of Mn-Doped ZnSe Nanoparticles
HAN Dong-mei1, 2, SONG Chun-feng1, LI Xiao-yu1*
1. College of Materials Science and Engineering, Beijing University of Chemical Technology，Beijing 100029，China 2. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology，Beijing 100029，China
Abstract：Transition metal doped Ⅱ-Ⅳ nanocrystals, which are expected to substitute for CdSe quantum dots as a new class of fluorescent label, obtain widespread concerns. In the present paper, Mn- doped ZnSe nanoparticles were prepared by microwave-irradiation method. Different organic amines were chosen. The effects of ligand and reaction conditions on the morphology and optical properties were investigated. TEM, EDS and photoluminescence spectra were used to investigate their morphology, structure and optical performance. The results showed that the Mn-doped ZnSe nanoparticles were orange and their average size was 200-500 nm. They had structured surface and single crystal wurtzite structure. The emission peak at about 530 nm was detected in the photoluminescence spectrum, which was attributable to Mn2+ transition emission. The effects of different ligands and doping ratio (Mn∶Zn) on the photoluminescence properties were significant.
Key words：Microwave-irradiation;Transition metal doped;ZnSe nanoparticles;Photoluminescence
[1] Chan E M, Mathies R A, Alivisatos A P. Nano Letters, 2003, 3(2): 199. [2] Peng Z A, Peng X. Journal of American Chemistry Society, 2001, 123(1): 183. [3] Gao X, Nie S. Journal of Physical Chemistry B, 2003, 107(42): 11575. [4] Zhen C, Xing G. Toxicology and Applied Pharmacology，2008, 230(3): 364. [5] Mierczyk Z, Majchrowski A, Kityk I V, et al. Optics & Laser Technology, 2003, 35: 169. [6] Radovanovic P V, Barrelet C J, Gradecak S, et al. Nano Letters, 2005, 5(7): 1407. [7] Kim D S, Cho Y J, Park J, et al. Journal of Physical Chemistry C, 2007, 111(29): 10861. [8] Mahamuni S, Lad A D, Patole S. Journal of Physical Chemistry C, 2008, 112(7): 2271. [9] YOU Feng-yong, BI Hong, ZHOU Xiao-li(尤逢永，毕 红，周小丽). Journal of Anhui University(Natural Sciences)(安徽大学学报·自然科学版), 2006，30(6)：75. [10] LI Li, XU Hong-yin(李 莉，许洪胤). Nonferrous Metals Engineering & Research(有色冶金设计与研究), 2007, 28(4) ：20. [11] Zu L, Norris D J, Kennedy T A. Nano Letters, 2006, 6(2): 334. [12] Chin P T K, Stouwdam J W, Janssen R A J. Nano Letters, 2009, 9(2): 745.
