Please wait a minute...
材料研究学报  2009, Vol. 23 Issue (1): 89-92    
  研究论文 本期目录 | 过刊浏览 |
CdS量子点的制备和光学性质
宋冰; 程轲; 武超; 杜祖亮
河南大学特种功能材料教育部重点实验室 开封 475004
Synthesis and their optical characterizations of CdS quantum dots
SONG Bing;  CHENG Ke;  WU Chao;  DU Zuliang
Key Laboratory for Special Functional Materials of Ministry of Education; Henan University; Kaifeng 475004
引用本文:

宋冰 程轲 武超 杜祖亮. CdS量子点的制备和光学性质[J]. 材料研究学报, 2009, 23(1): 89-92.
, , , . Synthesis and their optical characterizations of CdS quantum dots[J]. Chin J Mater Res, 2009, 23(1): 89-92.

全文: PDF(582 KB)  
摘要: 

以醋酸镉、硫粉为原料制备CdS量子点, 研究了硫的加入量对其光学性质的影响. 结果表明: 合成的CdS量子点粒径均匀, 分散性较好, 随着硫加入量的增加CdS量子点的粒径增大; 反应中过量的硫能有效地填补硫空位, 从而抑制表面态发光. 同时, ODA的修饰也能有效地钝化表面态, 减小表面态的发光强度.

关键词 无机非金属材料硫化镉量子点量子尺寸效应表面态    
Abstract

The 2.5 nm, 3.5 nm and 5.0 nm diameter CdS quantum dots had been synthesized using octadecylamine (ODA) as surfactant and solvent. The size and composition of quantum dots could be adjusted by changing the amount of added sulfur. The size of CdS quantum dots was increased with the increase of sulfur during the synthesis procedure. On the other hand, the excess sulfur will eliminate the sulfur vacancies effectively and suppress the surface state emission. The ODA could passivate the surface states presented on the surface of CdS quantum dots and suppress the surface states emission effectively.

Key wordsinorganic non--metallic materials    CdS    quantum dot    quantum size effects    surface states
收稿日期: 2008-05-22     
ZTFLH: 

TB321

 
基金资助:

国家自然科学基金90306010, CHE--20773103,教育部新世纪优秀人才计划NCET--04--0653和国家重点基础研究计划2007CB616911资助项目.

1 ZHAO Jialong, J.A.Bardecker, A.M.Munro, M.S.Liu, NIU Yuhua, I. K. Ding, LUO Jingdong, CHEN Baoquan,
A.K.Y.Jen, D.S.Ginger, Efficient CdSe/CdS quantum dot light–emitting diodes using a thermally Polymerized hole transport layer, Nano Lett., 6(3), 463(2006)
2 R.F.Heuffa, D.T.Cramba, M.Marrocco, Fluorescence correlation spectroscopy for diffusion of mobile quantum
dots in dilute solutions, Chem. Phys. Lett., 454(4–6), 257(2008)
3 WU Guangming, ZHU Jiang, LI Yuefa, JIA Rui, Photoluminescence study of self–organized InAs quantum dots (wires) on InP (001) substrate, Chinese J. Mater. Res., 17(6), 566(2003)
(武光明, 朱江, 李月法, 贾锐, InP(001)基衬底上自组织生长量子点线的光学性质研究, 材料研究学报, 17(6), 566(2003))
4 WU Guangming, LI Yuefa, JIA Rui, Fabrication and characterization of InAs self–organized quantum dots (wires), Chinese J. Mater. Res., 16(5), 490(2002)
(武光明, 李月法, 贾锐, InAs自组织量子点线的制备和表征, 材料研究学报,  16(5), 490(2002))
5 H.Kumano, H.Kobayashi, Y.Hayashi, M.Jo, I.Suemune, H.Sasakura, S.Adachi, S.Muto, Single photon emission
with high degree of circular polarization from a single quantum dot under zero magnetic field, Physica E, 40(6),
1824(2008)
6 B.Lounis, H.A.Bechtel, D.Gerion, P.Alivisatos, W.E.Moerner, Photon antibunching in single CdSe/ZnS quantum dot fluorescence, Chem. Phys. Lett., 329(5–6), 399(2000)
7 P.N.Vijayan, K.Dhanalakshmi, G.Sundararajan, P.K.Nair, Y.V.G.S.Murti, Synthesis and characterization of CdS nanocrystals in a perfluorinated ionomer(Nafion), Mater. Sci. Eng. B, 83(1–3), 61(2001)
8 K.R.Choudhury, M.Samoc, A.Patra, P.N.Prasad, Charge carrier transport in poly(N–vinylcarbazole):CdS quantum dot hybrid nanocomposite, J. Phys. Chem. B, 108(5), 1556(2004)
9 B.A.Harruff, C.E.Bunker, Spectral properties of AOT– protected CdS nanoparticles: quantum yield enhancement by photolysis, Langmuir, 19(3), 893(2003)
10 MAO Jie, YAO Junna, WANG Lina, LIU Weisheng, Easily prepared high–quantum–yield CdS quantum dots in water using hyperbranched polyethylenimine as modifier, J. Colloid Interf. Sci., 319(1), 353(2008)
11 K.V.Anikin, N.N.Melnik, A.V.Simakin, G.A.Shafeev, V.V.Voronov, A.G.Vitukhnovsky, Formation of ZnSe and CdS quantum dots via laser ablation in liquids, Chem. Phys. Lett., 366(3–4), 357(2002)
12 D.Behar, I.Rubinstein, G.Hodes, S.Cohen, H.Cohen, Electrodeposition of CdS quantum dots and their optoelectronic characterization by photoelectrochemical and scanning probe spectroscopies, Superlatt. Microstruct., 25(4), 659(1999)
13 H.Kumano, A.Ueta, I.Suemune, Modified spontaneous emission properties of CdS quantum dots embedded in novel three–dimensional microcavities, Physica E, 13(2–4), 441(2002)
14 GUO Wenzhuo, J.J.Li, Y.A.Wang, PENG Xiaogang, Luminescent CdSe/CdS Core/Shell nanocrystals in dendron boxes: superior chemical, photochemical and thermal Stability, J. Am. Chem. Soc., 125(13), 3901(2003)
15 C.Unni, D.Philip, K.G.Gopchandran, Studies on optical absorption and photoluminescence of thioglycerol stabilized CdS quantum dots, Spectrochim. Acta A, 4, 23(2008)
16 A.B.Hernandez, G.L.Gonzalez, L.M.Montes, U.Pal, Exciton energies of wurtzite CdS nanoparticles, Sol. Energy. Sol. Cells, 79(4), 539(2003)
17 M.Pattabi, B.S.Amma, Synthesis and stability studies of thiophenol capped CdS nanoparticles, Sol. Energy. Sol. Cells, 90(15), 2377(2006)
18 F.C.Weinstein, J.D.Dow, B.Y.Lao, Optical response of semiconductors in electric fields: excitonic effects, Phys. Rev. B, 4(10), 3502(1971)
19 XU Guoqin, LIU Bing, XU Shijie, C.H.Chew, S.J.Chua, L.M.Gana, Luminescence studies of CdS spherical particles via hydrothermal synthesis, J. Phys. Chem. of Solid., 61(6), 829(2000)
20 J.R.Lakowicz, I.Gryczynski, G.Piszczek, C.J.Murphy, Emission spectral properties of cadmium sulfide nanoparticles with multiphoton excitation, J. Phys. Chem. B, 106(21), 5365(2002)

[1] 宋莉芳, 闫佳豪, 张佃康, 薛程, 夏慧芸, 牛艳辉. 碱金属掺杂MIL125CO2 吸附性能[J]. 材料研究学报, 2023, 37(9): 649-654.
[2] 邵鸿媚, 崔勇, 徐文迪, 张伟, 申晓毅, 翟玉春. 空心球形AlOOH的无模板水热制备和吸附性能[J]. 材料研究学报, 2023, 37(9): 675-684.
[3] 任富彦, 欧阳二明. g-C3N4 改性Bi2O3 对盐酸四环素的光催化降解[J]. 材料研究学报, 2023, 37(8): 633-640.
[4] 刘明珠, 樊娆, 张萧宇, 马泽元, 梁城洋, 曹颖, 耿仕通, 李玲. SnO2 作散射层的光阳极膜厚对量子点染料敏化太阳能电池光电性能的影响[J]. 材料研究学报, 2023, 37(7): 554-560.
[5] 李延伟, 罗康, 姚金环. Ni(OH)2 负极材料的十二烷基硫酸钠辅助制备及其储锂性能[J]. 材料研究学报, 2023, 37(6): 453-462.
[6] 余谟鑫, 张书海, 朱博文, 张晨, 王晓婷, 鲍佳敏, 邬翔. N掺杂生物炭的制备及其对Co2+ 的吸附性能[J]. 材料研究学报, 2023, 37(4): 291-300.
[7] 朱明星, 戴中华. SrSc0.5Nb0.5O3 改性BNT基无铅陶瓷的储能特性研究[J]. 材料研究学报, 2023, 37(3): 228-234.
[8] 刘志华, 岳远超, 丘一帆, 卜湘, 阳涛. g-C3N4/Ag/BiOBr复合材料的制备及其光催化还原硝酸盐氮[J]. 材料研究学报, 2023, 37(10): 781-790.
[9] 周毅, 涂强, 米忠华. 制备方法对磷酸盐微晶玻璃结构和性能的影响[J]. 材料研究学报, 2023, 37(10): 739-746.
[10] 谢锋, 郭建峰, 王海涛, 常娜. ZnO/CdS/Ag复合光催化剂的制备及其催化和抗菌性能[J]. 材料研究学报, 2023, 37(1): 10-20.
[11] 余超, 邢广超, 吴郑敏, 董博, 丁军, 邸敬慧, 祝洪喜, 邓承继. 亚微米Al2O3 对重结晶碳化硅的作用机制[J]. 材料研究学报, 2022, 36(9): 679-686.
[12] 方向明, 任帅, 容萍, 刘烁, 高世勇. 自供能Ag/SnSe纳米管红外探测器的制备和性能研究[J]. 材料研究学报, 2022, 36(8): 591-596.
[13] 李福禄, 韩春淼, 高嘉望, 蒋健, 许卉, 李冰. 氧化石墨烯的变温发光[J]. 材料研究学报, 2022, 36(8): 597-601.
[14] 朱晓东, 夏杨雯, 喻强, 杨代雄, 何莉莉, 冯威. Cu掺杂金红石型TiO2 的制备及其光催化性能[J]. 材料研究学报, 2022, 36(8): 635-640.
[15] 熊庭辉, 蔡文汉, 苗雨, 陈晨龙. ZnO纳米棒阵列和薄膜的同步外延生长及其光电化学性能[J]. 材料研究学报, 2022, 36(7): 481-488.