Skip to main content

A Cost-Effective Growth of SiOx Thin Films by Reactive Sputtering: Photoluminescence Tuning

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

We present a new cost-effective method to produce substoichiometric SiO2 thin films by means of a simple sputter-coater operated at a base pressure of 1 × 10–3 mbar. During sputtering air is introduced through a fine valve so that the sputtering gas is a mixture of air/Ar. High-resolution electron microscopy shows the formation of amorphous SiOx thin films for the as-deposited samples. The index x approaches 1 when the ratio of the partial pressure of air/Ar tends to 0.1. On the other hand, pure silica is formed when the ratio of the partial pressure of air/Ar approaches 0.5. The films in the as-deposited state show intense green–yellow photoluminescence. This fades away with short annealing under air at 950 °C. If on the other hand, prolonged annealing is performed under Argon atmosphere at 1000 °C, red-infrared photoluminescence is recorded due to the formation of Si nanocrystals embedded in SiO2. This simple method could be suitable for the production of thin SiOx films with embedded nanocrystals for optoelectronic or photovoltaic applications.

Keywords: DEFECTS; OPTOELECTRONICS; PHOTOLUMINESCENCE; PHOTOVOLTAICS; SI NANOCRYSTALS; SILICON; SILICON OXIDE; THIN FILMS

Document Type: Short Communication

DOI: http://dx.doi.org/10.1166/jnn.2011.3814

Publication date: April 1, 2011

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
asp/jnn/2011/00000011/00000004/art00125
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more