Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 17, 2019
Previous Article Next Article

Tailored near-infrared-emitting colloidal heterostructured quantum dots with enhanced visible light absorption for high performance photoelectrochemical cells

Author affiliations

Abstract

Colloidal heterostructured CuGaS2 (CGS)/CdS core/shell quantum dots (QDs) with a wurtzite (WZ) phase were synthesized via a facile two-step technique. As compared to the bare CGS QDs, the optical properties of such heterostructured CGS/CdS core/shell QDs were tailored to show largely enhanced light absorption in the visible range and an emission peak in the near-infrared (NIR) region at a wavelength of ∼816 nm. As proof of concept, these core/shell QDs were used as light absorbers to fabricate a photoelectrochemical (PEC) cell, which exhibited a maximum saturated photocurrent density of ∼6.5 mA cm−2 and outstanding stability under standard one sun illumination (AM 1.5G, 100 mW cm−2). The results indicate that these NIR core/shell QDs are promising candidates for future QD-based optoelectronic technologies such as QD-sensitized solar cells (QDSCs).

Graphical abstract: Tailored near-infrared-emitting colloidal heterostructured quantum dots with enhanced visible light absorption for high performance photoelectrochemical cells

Back to tab navigation

Supplementary files

Article information


Submitted
27 Jan 2019
Accepted
02 Apr 2019
First published
03 Apr 2019

J. Mater. Chem. A, 2019,7, 10225-10230
Article type
Communication

Tailored near-infrared-emitting colloidal heterostructured quantum dots with enhanced visible light absorption for high performance photoelectrochemical cells

A. I. Channa, X. Tong, J. Xu, Y. Liu, C. Wang, M. N. Sial, P. Yu, H. Ji, X. Niu and Z. M. Wang, J. Mater. Chem. A, 2019, 7, 10225
DOI: 10.1039/C9TA01052A

Social activity

Search articles by author

Spotlight

Advertisements