Issue 35, 2012
From the journal:

Journal of Materials Chemistry

Molecular conformation dependent emission behaviour (blue, red and white light emissions) of all-trans-β-carotene-ZnS quantum dot hybrid nanostructures†

V. Perumal Devarajan,a   Devaraj Nataraj,*abd   Thangavelu Pazhanivel,ab   Karuppanan Senthil,c   Minsu Seol,d   Kijung Yong,d   Justus Hermannsdorfere  and  Rhett Kempee  

* Corresponding authors

a Thin Films & Nanomaterials Research Laboratory, Department of Physics, Bharathiar University, Coimbatore-641 046, India
E-mail: de.natraj2011@gmail.com
Fax: +91-422-2422387
Tel: +91-422-2428444

b DRDO-BU CLS, Bharathiar University Campus, Coimbatore-641 046, India

c School of Advanced Materials Science & Engineering, Sungkyunkwan University (Suwon Campus), Cheoncheon-Dong 300, Jangan-gu, Suwon 440-746, South Korea

d Surface Chemistry Laboratory of Electronic Materials, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea

e Inorganic Chemistry II, University of Bayreuth, 95440 Bayreuth, Germany

Abstract

A novel hybrid material consisting of all-trans-β-carotene and ZnS quantum dots (QDs) was prepared by two different controlled experiments and their photophysical properties were investigated in detail. Depending upon the preparation method, the β-carotene molecule had formed either an upright or wrapped conformation around the ZnS QDs and consequently the interaction between these two hybridizing systems was either charge transfer induced or electrostatic in type, respectively. Optical absorption, Raman and FTIR investigations have confirmed the two different conformations of the molecule around the ZnS QDs. Because of the two different conformations and the consequent interactions, different emission colours, such as blue and red wavelengths were obtained from these hybrids. We were also able to obtain white light emission by using cadmium doped ZnS QDs for the hybrid preparation.

Graphical abstract: Molecular conformation dependent emission behaviour (blue, red and white light emissions) of all-trans-β-carotene-ZnS quantum dot hybrid nanostructures

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C2JM32982D
Article type
Paper
Submitted
11 May 2012
Accepted
06 Jul 2012
First published
10 Jul 2012

J. Mater. Chem., 2012,22, 18454-18462

Permissions

Request permissions

Molecular conformation dependent emission behaviour (blue, red and white light emissions) of all-trans-β-carotene-ZnS quantum dot hybrid nanostructures

V. P. Devarajan, D. Nataraj, T. Pazhanivel, K. Senthil, M. Seol, K. Yong, J. Hermannsdorfer and R. Kempe, J. Mater. Chem., 2012, 22, 18454 DOI: 10.1039/C2JM32982D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements