Spectroscopy of Mn4+ in double perovskites, La2LiSbO6 and La2MgTiO6: Deep red photon generators for agriculture LEDs

A. M. Srivastava; M. G. Brik; H. A. Comanzo; W. W. Beers; W. E. Cohen; T. Pocock

doi:10.1149/2.0191801jss

Spectroscopy of Mn⁴⁺ in double perovskites, La₂LiSbO₆ and La₂MgTiO₆: Deep red photon generators for agriculture LEDs

A. M. Srivastava
, M. G. Brik
, H. A. Comanzo
, W. W. Beers
, W. E. Cohen
, T. Pocock

General Electric
Chongqing University of Posts and Telecommunications
University of Tartu
Jan Dlugosz University in Czestochowa
Rensselaer Polytechnic Institute

Research output: Contribution to journal › Article › peer-review

77 Citations (Scopus)

Abstract

The optical properties of Mn⁴⁺ (3d³) in the double perovskites, La₂LiSbO₆ and La₂MgTiO₆, are investigated. The Mn⁴⁺ energy levels are calculated using the exchange charge model of crystal-field theory and compared with the experimental spectroscopic data. A comparative study of the optical properties of Mn⁴⁺ in the perovskite structure shows that energy of the ²Eg→⁴A_2g emission transition is determined by octahedral site distortion. The greater is the site distortion, the lower is the Mn-O covalent interaction and the higher is the energy of the ²Eg→⁴A_2g emission transition. The work provides guidelines for the development of deep red emitting phosphors for agricultural (horticultural) applications.

Original language	English
Pages (from-to)	R3158-R3162
Journal	ECS Journal of Solid State Science and Technology
Volume	7
Issue number	1
DOIs	https://doi.org/10.1149/2.0191801jss
Publication status	Published - 2018
Externally published	Yes

Access to Document

10.1149/2.0191801jss

Cite this

@article{c2dc410940754263940fd36e57797cf4,

title = "Spectroscopy of Mn4+ in double perovskites, La2LiSbO6 and La2MgTiO6: Deep red photon generators for agriculture LEDs",

abstract = "The optical properties of Mn4+ (3d3) in the double perovskites, La2LiSbO6 and La2MgTiO6, are investigated. The Mn4+ energy levels are calculated using the exchange charge model of crystal-field theory and compared with the experimental spectroscopic data. A comparative study of the optical properties of Mn4+ in the perovskite structure shows that energy of the 2Eg→4A2g emission transition is determined by octahedral site distortion. The greater is the site distortion, the lower is the Mn-O covalent interaction and the higher is the energy of the 2Eg→4A2g emission transition. The work provides guidelines for the development of deep red emitting phosphors for agricultural (horticultural) applications.",

author = "Srivastava, \{A. M.\} and Brik, \{M. G.\} and Comanzo, \{H. A.\} and Beers, \{W. W.\} and Cohen, \{W. E.\} and T. Pocock",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2017. Published by ECS.",

year = "2018",

doi = "10.1149/2.0191801jss",

language = "English",

volume = "7",

pages = "R3158--R3162",

journal = "ECS Journal of Solid State Science and Technology",

issn = "2162-8769",

publisher = "Electrochemical Society Inc.",

number = "1",

}

TY - JOUR

T1 - Spectroscopy of Mn4+ in double perovskites, La2LiSbO6 and La2MgTiO6

T2 - Deep red photon generators for agriculture LEDs

AU - Srivastava, A. M.

AU - Brik, M. G.

AU - Comanzo, H. A.

AU - Beers, W. W.

AU - Cohen, W. E.

AU - Pocock, T.

PY - 2018

Y1 - 2018

N2 - The optical properties of Mn4+ (3d3) in the double perovskites, La2LiSbO6 and La2MgTiO6, are investigated. The Mn4+ energy levels are calculated using the exchange charge model of crystal-field theory and compared with the experimental spectroscopic data. A comparative study of the optical properties of Mn4+ in the perovskite structure shows that energy of the 2Eg→4A2g emission transition is determined by octahedral site distortion. The greater is the site distortion, the lower is the Mn-O covalent interaction and the higher is the energy of the 2Eg→4A2g emission transition. The work provides guidelines for the development of deep red emitting phosphors for agricultural (horticultural) applications.

AB - The optical properties of Mn4+ (3d3) in the double perovskites, La2LiSbO6 and La2MgTiO6, are investigated. The Mn4+ energy levels are calculated using the exchange charge model of crystal-field theory and compared with the experimental spectroscopic data. A comparative study of the optical properties of Mn4+ in the perovskite structure shows that energy of the 2Eg→4A2g emission transition is determined by octahedral site distortion. The greater is the site distortion, the lower is the Mn-O covalent interaction and the higher is the energy of the 2Eg→4A2g emission transition. The work provides guidelines for the development of deep red emitting phosphors for agricultural (horticultural) applications.

UR - https://www.scopus.com/pages/publications/85044049231

U2 - 10.1149/2.0191801jss

DO - 10.1149/2.0191801jss

M3 - Article

AN - SCOPUS:85044049231

SN - 2162-8769

VL - 7

SP - R3158-R3162

JO - ECS Journal of Solid State Science and Technology

JF - ECS Journal of Solid State Science and Technology

IS - 1

ER -

Spectroscopy of Mn⁴⁺ in double perovskites, La₂LiSbO₆ and La₂MgTiO₆: Deep red photon generators for agriculture LEDs

Abstract

Access to Document

Other files and links

Fingerprint

Cite this