Issue 15, 2016
From the journal:

Nanoscale

Photoluminescence through in-gap states in phenylacetylene functionalized silicon nanocrystals†

Arzu Angı,a   Regina Sinelnikov,b   Al Meldrum,c   Jonathan G. C. Veinot,b   Isacc Balberg,d   Doron Azulay,d   Oded Millo*d  and  Bernhard Rieger*a  

* Corresponding authors

a WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany
E-mail: rieger@tum.de

b Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2

c Department of Physics, University of Alberta, Edmonton, Alberta T6G 2G2, Canada

d Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
E-mail: milode@mail.huji.ac.il

Abstract

Optoelectronic properties of Si nanocrystals (SiNCs) were studied by combining scanning tunneling spectroscopy (STS) and optical measurements. The photoluminescence (PL) of phenylacetylene functionalized SiNCs red shifts relative to hexyl- and phenyl-capped counterparts, whereas the absorption spectra and the band gaps extracted from STS are similar for all surface groups. However, an in-gap state near the conduction band edge was detected by STS only for the phenylacetylene terminated SiNCs, which can account for the PL shift via relaxation across this state.

Graphical abstract: Photoluminescence through in-gap states in phenylacetylene functionalized silicon nanocrystals

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C6NR01435F
Article type
Communication
Submitted
19 Cʼhwe. 2016
Accepted
16 Meur. 2016
First published
17 Meur. 2016
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2016,8, 7849-7853

Permissions

Request permissions

Photoluminescence through in-gap states in phenylacetylene functionalized silicon nanocrystals

A. Angı, R. Sinelnikov, A. Meldrum, J. G. C. Veinot, I. Balberg, D. Azulay, O. Millo and B. Rieger, Nanoscale, 2016, 8, 7849 DOI: 10.1039/C6NR01435F

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, 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 commercial 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.

Social activity

Spotlight

Advertisements