Supplementary Material for
Quantum Confinement Effects on Charge-Transfer Between PbS
Quantum Dots and 4-Mercaptopyridine
Xiaoqi Fu1,2,3, Yi Pan2, Xin Wang*3 and John R. Lombardi*2
1
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R.
China
2
Department of Chemistry, the City College of New York, New York, N.Y. 10031
3
Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing
University of Science and Technology, Nanjing 210094, P. R. China
*Correspondence to: John R. Lombardi, e-mail: lombardi@sci.ccny.cuny.edu
or Xin Wang, e-mail: wxin@public1.ptt.js.cn
Table S1. Average sizes of PbS quantum dots (QDs) measured from TEM images.
Sample
Average size (nm)
Aging Time (min.)
(a)
5.0±0.5
5
(b)
6.1±0.6
10
(c)
7.3±0.8
20
(d)
8.2±1.0
40
(e)
8.9±0.9
60
(f0
10.2±1.2
120
1
Figure S1. TEM images and sizes of PbS QDs: (a) 5.0 ± 0.5 nm, (b) 6.1 ± 0.6 nm, (c) 7.3 ± 0.8 nm
(d) 8.2 ± 1.0 nm (e) 8.9 ± 0.9 nm (f) 10.2 ± 1.2 nm.
2