화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터)
권호 25권 2호, p.1819
발표분야 재료 (Materials)
제목 Synthesis of CdTe Nanoparticles Using Thioglycolic Acid, Thioglycerol and L-cysteine
초록 We synthesized photostable thiol-capped CdTe nanocrystals(NCs) via chemical reaction using thioglycolic acid, thioglycerol and L-cysteine as stabilizers. In the NP synthesis, 0.985g (2.35mmol) of Cd(ClO4)2∙6H2O was dissolved in 125mL of water, and 5.7mmol of the thiol stabilizer was added under stirring, followed by adjusting the pH to 10.0 by dropwise addition of 1M solution of NaOH. The solution was placed in a three-necked flask and was deaerated by N2 bubbling for 30min. Under stirring, H2Te gas was passed through the solution together with a slow nitrogen flow for 20min. CdTe precursors were formed at this stage which was accompanied by a change of the solution color, depending on the thiols used, to yellow (1-thioglycerol) and orange (thioglycolic acid and L-cysteine). The ratio of stabilizer to Cd2+ was 1: 2.4. The average sizes of the synthesized NPs were 5.1nm, 5.5nm, 5.7nm for thioglycolic acid, thioglycerol and L-cysteine respectively. The produced particles were crystalline in structure with a face-centered cubic (fcc) lattice.  
This was supported by Korea National University of Transportation in 2019
저자 조인솔, 강정원, 김기섭
소속 국립한국교통대
키워드 재료
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