Supplemental Material
Can Uran,
1
Talha Erdem,
1
Burak Guzelturk,
1
Nihan Kosku Perkgöz,
1,2
Shinae Jun,
3
Eunjoo
Jang,
3
and Hilmi Volkan Demir
1,4*
1
Department of Electrical and Electronics Engineering, Department of Physics, and
UNAM - National Nanotechnology Research Center, Institute of Materials Science and
Nanotechnology, Bilkent University, Ankara 06800, Turkey
2
Department of Electrical and Electronics Engineering, Faculty of Engineering, Anadolu
University, Eskisehir 26555, Turkey
3
Inorganic material laboratory, Material research center, Samsung Advanced
Institute of Technology, Samsung Electronics Co.
130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 443-803, Republic of Korea.
4
Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of
Electrical and Electronic Engineering, School of Physical and Materials Sciences, Nanyang
Technological University, Singapore 639798, Singapore
* volkan@stanfordalumni.org, Tel.: +90 (312) 290-1021, Fax: +90 (312) 290-1123
For synthesis of aqueous CdTe colloidal quantum dots, 4.59 g of Cd(ClO
4
)
2
·6H
2
O was dissolved in 0.5 L of Milli-Q water. Subsequently, 1.33 g of thioglycolic acid (TGA) was added to the solution and the pH of the mixture was set to 12.0 by addition of NaOH. Later,
0.8 g of Al
2
Te
3 was deaerated under Ar flow for approximately 60 min. Following the addition of 0.5 M H
2
SO
4
onto Al
2
Te
3
to produce H
2
Te gas, the solution was heated until boiling point, at which temperature the nanocrystal quantum dots start to form. The reaction was continued about 20 hours, at the end of which the QDs exhibited an emission peak at 625 nm. The absorption (black line) and emission spectra (red line) of the synthesized CdTe quantum dots are given in Fig. S1.
The absorption (black line) and emission spectra (red line) of the synthesized CdTe quantum dots are given in Fig. S1.
FIG. S1.
Absorption (black line) and emission spectra (red line) of the synthesized CdTe QDs emitting around 625 nm.