CdTe QDs 용액 안정성의 장시간 유지지속을 위한 TGA(thioglycolic acid)의 첨가효과

김종환; 김태희; 구동건; 기경범; 최원규; 한경석; 류봉기; Jonghwan Kim; Taehee Kim; Donggun Gwoo; Kyungbum Kee; Wongyu Choi; Kungseok Han; Bongki Ryu

Korean Journal of Materials Research, Vol.22, No.9, 465-469, September, 2012

DOI10.3740/MRSK.2012.22.9.465 Export Citation

CdTe QDs 용액 안정성의 장시간 유지지속을 위한 TGA(thioglycolic acid)의 첨가효과

Influence of Raito of TGA(thioglycolic acid) on CdTe QDs Solution Stability for a Period of Time

김종환, 김태희, 구동건, 기경범, 최원규, 한경석, 류봉기^†

부산대학교 재료공학부

Jonghwan Kim, Taehee Kim, Donggun Gwoo, Kyungbum Kee, Wongyu Choi, Kungseok Han, and Bongki Ryu^†

Division of Materials Science and Engineering, Korea Busan National Univ., Jangjeon 2-dong, Geumjeong-gu, Busan 609-705, Korea

E-mail:

This paper focuses on the after synthesis of CdTe quantum dots(QDs) in aqueous solution. CdTe nanoparticles were prepared in aqueous solution using mercaptocarboxylic acid or thioglycolic acid(TGA) as stabilizing agents. QDs emit light smaller than the nano size. The contents of the mercaptocarboxylic acid, and a kind of raw material, were revealed for a period of time. We succeeded in synthesizing a very high quality QDs solution; we discussed how to make QDs better and to keep them stabilized. TGA is known as one of the best stabilizing agents. Many papers have mentioned that TGA is a good stabilizing agent. We dramatically confirmed the state of QDs after the experiments. The QDs solution can be influenced by several factors. Different content of TGA can influence the stability of the CdTe solution. Most papers deal with the synthesis of CdTe, so we decided to discuss the after synthesis process for the stability of the CdTe solution.

Keywords:CdTe;thioglycolic acid(TGA);quantum dots;stabilizer

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[2] Sirohi S, Kumar V, Sharma TP, Opt. Mater., 12(1), 121 (1999)

[3] Kumar V, Gaur JK, Sharma MK, Sharma TP, Chalcogenide Lett., 5(8), 171 (2008)

[4] Liu YF, Yu JS, J. Colloid Interface Sci., 351(1), 1 (2010)

[5] Wang S, Li Y, Bai J, Yang Q, Song Y, Zhang C, Bull. Mater. Sci., 32(5), 487 (2009)

[6] Gaponik N, Talapin DV, Rogach AL, Hoppe K, Shevchenko EV, Kornowski A, Eychmuller A, Weller H, J. Phys. Chem. B, 106(29), 7177 (2002)

[7] Idowu M, Nyokong T, Polyhedron, 28(5), 891 (2009)

[8] Li Z, Wang Y, Zhang G, Xu W, Han Y, J. Lumin., 130(6), 995 (2010)

[9] Zhang H, Zhou Z, Yang B, Gao M, J. Phys. Chem., 107(1), 8 (2003)

[10] Rogach AL, Eychmuller A, Kornowski A, Weller H, Macromol. Symp., 136(1), 87 (1998)

[11] Bao H, Hao N, Yang Y, Zhao D, Nano Res., 3, 481 (2010)

[12] Qi B, Kim DW, Williamson DL, Trefny JU, J. Electrochem. Soc., 143(2), 517 (1996)

[13] Sathyamoorthy R, Narayandass SK, Mangalaraj D, Sol. Energy Mater. Sol. Cells, 76(3), 339 (2003)

[14] Abd El-Sadek MS, Kumar JR, Babu SM, Int. J. Nanoparticles, 2(1-6), 20 (2009)