Dy3+-doped nano-glass ceramics comprising NaAlSiO4 and NaY9Si6O26 nanocrystals for white light generation

  1. Home
  2. Research
  3. Publications

abstract

The radiative emission properties of the Dy3+ ions in oxyfluoride glasses and glass ceramics have been investigated for the generation of white light. The X-ray diffraction pattern of the glass ceramics reveals the presence of NaAlSiO4 nanocrystals along with secondary phase of NaY9Si6O26 in the glass matrix after a suitable thermal treatment of the pristine glasses. Intense white light emission has been observed when the samples are excited with 350 nm light. Yellow to blue emission intensity ratios and chromaticity color coordinates have been determined from the visible luminescence spectra. All color coordinates are found to lie in the white region of the chromaticity color diagram proposing the suitability of the present studied materials for color display devices. (C) 2012 Elsevier B.V. All rights reserved.

keywords

OXYFLUORIDE GLASS; PHOTOLUMINESCENCE PROPERTIES; LUMINESCENCE PROPERTIES; LED APPLICATIONS; PHOSPHORS; DY3+; CONVERSION; EMISSION; TB3+; ER3+

subject category

Materials Science; Physics

authors

Bagga, R; Achanta, VG; Goel, A; Ferreira, JMF; Singh, NP; Singh, DP; Falconieri, M; Sharma, G

our authors

foto José Maria da Fonte Ferreira

José Maria da Fonte Ferreira

Retired Professor

Groups

G5 - Biomimetic, Biological and Living Materials

acknowledgements

This work was financially supported by University Grants Commission of India (Grant No. F. No. 35-3/2008 (SR)) and ICTP, Italy (Grant No. 421.ENEA). The authors would like to thank Mr. Nilesh Kulkarni and Ms. B.A. Chalke, TIFR, Mumbai for help with XRD and SEM measurements. The support from CICECO, Portugal is greatly acknowledged.

Share this project:

Related Publications

Publication Details

type
Journal Article
year
2013
journal
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
volume
178
publisher
ELSEVIER SCIENCE BV
issn
0921-5107
issue
3
digital object identifier
10.1016/j.mseb.2012.10.023
web of science article identifier
WOS:000314380400005

Journal Metrics (JCR 2019)

Journal Impact Factor
4.706
Journal Impact Factor (5 yrs)
3.76
category normalized journal percentile
73.529

Citations

Social Interaction

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".


Privacy and Cookie Policy

Personal data

CICECO-Aveiro Institute of Materials respects your privacy, ensuring confidentiality of personal data you share with the institution through this way, not collecting any personal information about you without your consent, under the terms required by General Data Protection Regulations (RGPD).

The data collected in forms are intended exclusively for processing user requests and will not be used for any other purpose, always safeguarding their confidentiality, under the terms of the protection conferred by the aforementioned regulation.

The collection and processing of data is the responsibility of CICECO and its storage is properly protected, only authorized CICECO employees can access the information within the scope of their functions, always being clear in the respective collection forms the purposes for which they are intended. The remaining issues to be considered in this matter will be handled by the University of Aveiro in accordance with the regime established by the GDPR.

Cookies policy

Cookies are small files with alphanumeric information that are stored on your computer's hard drive by your browser and are intended to improve the user experience and enhance website navigation.

Collection and use of technical information

The cookies used on CICECO are anonymous, and no information about our users that allows their personal identification is stored in them.

The technical information recorded consists of:

  • iP (Internet Protocol) address of the visitor;
  • the type of internet browser used by the website visitor and the respective operating system used;
  • the date and time of the consultation;
  • the pages visited on the site and the documents downloaded
  • The technical information collected is used for statistical purposes only.

Cookies used

Session cookies

These cookies are used to record user preferences, such as the language in which websites are displayed or to maintain authenticated user sessions, and are automatically deleted when the browser is closed.

Persistent cookies

These cookies store information that is needed between sessions. For example, a persistent cookie is set to record that you have been made aware of the cookie policy so that the message regarding this policy is not shown again the next time you visit the website. This cookie remains on the computer until it reaches its expiry date or is deleted by the user.

Data protection

The present privacy policy covers the Information System of the University of Aveiro (SIUA), governed by the General Data Protection Regulations (RGPD) Regulation (EU) No. 2016/679, of April 27th, 2016.

Data Protection Officer

The University of Aveiro has a Data Protection Officer (DPO), who ensures compliance of the processing of personal data with the legislation in force, and is available through the following email address epd@ua.pt.

Close