| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1518003 | Journal of Physics and Chemistry of Solids | 2009 | 6 Pages |
Abstract
We report on the chemical linkage of fullerenes to lead selenide (PbSe) nanocrystals by exchanging oleic acid ligands on PbSe nanocrystals with C60-bound dithiocarbamate ligands. To improve the solubility of C60-PbSe nanocrystals, a small-molecular-weight dithiocarbamate was used as a co-ligand in the ligand exchange reaction. The as-synthesized C60-PbSe nanoconjugates were characterized by 1H NMR, UV–vis and transmission electron microscopy (TEM). Photoelectrochemistry (PEC) of the C60-PbSe nanoconjugate revealed a reversed polarity of the photocurrent compared to those of C60 and PbSe nanoparticles separately, suggesting that C60 may serve as p-dopants to PbSe nanocrystals through the surface transfer doping process.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Dongfang Liu, Wei Wu, Shihe Yang,