Simple Syntheses of CdSe Quantum Dots

被引:69
作者
Landry, Matthew L. [1 ]
Morrell, Thomas E. [1 ]
Karagounis, Theodora K. [1 ]
Hsia, Chih-Hao [1 ]
Wang, Chia-Ying [1 ]
机构
[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA
基金
美国国家科学基金会;
关键词
Upper-Division Undergraduate; Inorganic Chemistry; Laboratory Instruction; Physical Chemistry; Hands-On Learning/Manipulatives; Materials Science; Nanotechnology; Quantum Chemistry; Synthesis; UV-Vis Spectroscopy; SEMICONDUCTOR NANOCRYSTALS; GROWTH; PHOTOLUMINESCENCE; MOLECULES; CLUSTERS; PARTICLE; SURFACE; CELLS; BOX;
D O I
10.1021/ed300568e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Quantum dots are an excellent resource for demonstrating quantum phenomena. Two new methods for synthesizing quantum dots are presented. Proceeding at relatively low reaction temperatures, these exercises are safe and easy to conduct in an undergraduate student laboratory. The quantum dots prepared from the first method exhibited visible luminescence across a broad range of colors. The size-dependent spectral properties of quantum dots were examined quantitatively in the second method. Following this procedure, students in an advanced chemistry laboratory course synthesized their own quantum dots. and gained experience with these important nanomaterials.
引用
收藏
页码:274 / 279
页数:6
相关论文
共 30 条
[1]   Origin of Stokes shift in InAs and CdSe quantum dots: Exchange splitting of excitonic states [J].
Bagga, Anjana ;
Chattopadhyay, P. K. ;
Ghosh, Subhasis .
PHYSICAL REVIEW B, 2006, 74 (03)
[2]   THE QUANTUM-MECHANICS OF LARGER SEMICONDUCTOR CLUSTERS (QUANTUM DOTS) [J].
BAWENDI, MG ;
STEIGERWALD, ML ;
BRUS, LE .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1990, 41 :477-496
[3]  
Boatman EM, 2005, J CHEM EDUC, V82, P1697
[4]   White-light emission from magic-sized cadmium selenide nanocrystals [J].
Bowers, MJ ;
McBride, JR ;
Rosenthal, SJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (44) :15378-15379
[5]   CdSe Clusters: At the Interface of Small Molecules and Quantum Dots [J].
Cossairt, Brandi M. ;
Owen, Jonathan S. .
CHEMISTRY OF MATERIALS, 2011, 23 (12) :3114-3119
[6]   Photoelectrochemical cells [J].
Grätzel, M .
NATURE, 2001, 414 (6861) :338-344
[7]   A THEORETICAL-STUDY OF THE INFLUENCE OF THE SURFACE ON THE ELECTRONIC-STRUCTURE OF CDSE NANOCLUSTERS [J].
HILL, NA ;
WHALEY, KB .
JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (04) :2831-2837
[8]   Synthesis and characterization of strongly luminescing ZnS-Capped CdSe nanocrystals [J].
Hines, MA ;
Guyot-Sionnest, P .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (02) :468-471
[9]   An Accessible Approach to Preparing Water-Soluble Mn2+-Doped (CdSSe)ZnS (Core)Shell Nanocrystals for Ratiometric Temperature Sensing [J].
Hsia, Chih-Hao ;
Wuttig, Anna ;
Yang, Haw .
ACS NANO, 2011, 5 (12) :9511-9522
[10]   Re-examination of the Size-Dependent Absorption Properties of CdSe Quantum Dots [J].
Jasieniak, Jacek ;
Smith, Lisa ;
van Embden, Joel ;
Mulvaney, Paul ;
Califano, Marco .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (45) :19468-19474