Luminescence properties of the solvothermally synthesized blue light emitting Mn doped Cu2O nanoparticles

被引:28
作者
Das, Kajari [1 ]
Sharma, Shailesh N. [2 ]
Kumar, Mahesh [2 ]
De, S. K. [1 ]
机构
[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, India
[2] Natl Phys Lab, New Delhi 110012, India
关键词
copper compounds; crystal structure; crystallites; doping profiles; manganese; nanofabrication; nanoparticles; particle size; photoluminescence; radiation quenching; X-ray photoelectron spectra; CDSE QUANTUM DOTS; OPTICAL-PROPERTIES; ZNO NANOCRYSTALS; CUPROUS-OXIDE; ENERGY-GAP; THIN-FILMS; CUO; CRYSTALS; EXCITONS; MATRIX;
D O I
10.1063/1.3295910
中图分类号
O59 [应用物理学];
学科分类号
摘要
The Cu2O nanoparticles having average crystallite diameters similar to 8-16 nm were synthesized by a simple solvothermal method. The Mn was doped in the Cu2O sample of crystallite size similar to 8 nm. The effects of the size and doping concentration on the crystal structures of the nanoparticles were investigated. The x-ray photoelectron spectroscopy studies clearly showed that the Mn was incorporated into the Cu2O lattice as Mn2+ due to the substitution of the Cu+ ions by Mn2+ ions. The quantum confinement effects were observed in the nanoparticles. The multiple emissions from the Cu2O were quenched in the Mn doped nanoparticles and only blue light emitting Cu2O nanoparticles were obtained due to the transition T-4(2)->(6)A(1) of Mn. The effects of the doping concentration and the particle size on the relaxations dynamics of the Cu2O nanoparticles were mainly investigated using photoluminescence decay.
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页数:8
相关论文
共 49 条
[1]   SPECTROSCOPIC PROPERTIES OF SEMICONDUCTOR CRYSTALS WITH DIRECT FORBIDDEN ENERGY-GAP [J].
AGEKYAN, VT .
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1977, 43 (01) :11-42
[2]   Ferromagnetic semiconductor nanoclusters:: Co-doped Cu2O [J].
Antony, Jiji ;
Qiang, You ;
Faheem, Muhammad ;
Meyer, Daniel ;
McCready, David E. ;
Engelhard, Mark H. .
APPLIED PHYSICS LETTERS, 2007, 90 (01)
[3]   Size-dependent conductivity-type inversion in Cu2O nanoparticles -: art. no. 165419 [J].
Balamurugan, B ;
Aruna, I ;
Mehta, BR ;
Shivaprasad, SM .
PHYSICAL REVIEW B, 2004, 69 (16) :165419-1
[4]   Spin-polarizable excitonic luminescence in colloidal Mn2+-doped CdSe quantum dots [J].
Beaulac, Remi ;
Archer, Paul I. ;
Liu, Xinyu ;
Lee, Sanghoon ;
Salley, G. Mackay ;
Dobrowolska, Margaret ;
Furdyna, Jacek K. ;
Gamelin, Daniel R. .
NANO LETTERS, 2008, 8 (04) :1197-1201
[5]   Synthesis and properties of Cu2O quantum particles [J].
Borgohain, K ;
Murase, N ;
Mahamuni, S .
JOURNAL OF APPLIED PHYSICS, 2002, 92 (03) :1292-1297
[6]   PHYSICAL ORIGIN OF THE ANOMALOUS TEMPERATURE-DEPENDENCE OF THE 1S YELLOW EXCITON LUMINESCENCE INTENSITY IN CU2O [J].
CASWELL, N ;
YU, PY .
PHYSICAL REVIEW B, 1982, 25 (08) :5519-5522
[7]   Formation of colloidal CuO nanocrystallites and their spherical aggregation and reductive transformation to hollow CU2O nanospheres [J].
Chang, Y ;
Teo, JJ ;
Zeng, HC .
LANGMUIR, 2005, 21 (03) :1074-1079
[8]   GROUND-STATE AND OPTICAL-PROPERTIES OF CU2O AND CUO CRYSTALS [J].
CHING, WY ;
XU, YN ;
WONG, KW .
PHYSICAL REVIEW B, 1989, 40 (11) :7684-7695
[9]   ENERGY BANDS IN CUPROUS OXIDE [J].
DAHL, JP ;
SWITENDICK, AC .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1966, 27 (6-7) :931-+
[10]   Fabrication of nanostructured CuInS2 thin films by ion layer gas reaction method [J].
Das, Kajari ;
Panda, Subhendu K. ;
Chaudhuri, S. .
APPLIED SURFACE SCIENCE, 2007, 253 (11) :5166-5172