Please use this identifier to cite or link to this item:
Title: Direct laser pruning of CdSxSe1-x nanobelts en route to a multicolored pattern with controlled functionalities
Authors: Lu, Junpeng
Lim, Xiaodai
Zheng, Minrui
Mhaisalkar, Subodh Gautam
Sow, Chorng Haur
Issue Date: 2012
Source: Lu, J., Lim, X., Zheng, M., Mhaisalkar, S. G., & Sow, C.-H. (2012). Direct Laser Pruning of CdSxSe1-x Nanobelts en Route to a Multicolored Pattern with Controlled Functionalities. ACS Nano, 6(9), 8298-8307.
Series/Report no.: ACS nano
Abstract: CdSxSe1–x nanobelts are interesting nanostructured materials with a tunable band gap from 1.7 to 2.4 eV depending on the nanobelts' stoichiometry. On the basis of their chemical compositions, these nanobelts give out strong photoluminescence with unique color. In this work, we demonstrate that a direct focused laser beam irradiation was able to achieve localized modification of the chemical composition of the nanobelts. As a result, we could locally change the optical properties of these nanobelts. With a scanning laser beam, micropatterns with a wide range of fluorescence color could be created on a substrate covered with ternary nanobelts without a prepatterned mask. The laser modified nanobelts showed higher resistance to acid corrosion and these nanobelts exhibited more superior photoconductivity. The construction of micropatterns with functionality/color control within the sample would provide greater building blocks for photoelectronic applications.
ISSN: 1936-0851
Rights: © 2012 American Chemical Society.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

Google ScholarTM



Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.