Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Holly A Comanzo"'
Autor:
S.A. Payne, David Smith, A.M. Srivastava, Holly Ann Comanzo, Mikhail G. Brik, J.W. Choi, William Winder Beers
Publikováno v:
Journal of Luminescence. 206:398-402
The low temperature spectroscopic properties of Mn4+ (3d3) in the orthorhombic perovskite, LaInO3, is examined in this work. The exchange charge model of crystal-field theory is used to calculate the Mn4+ energy levels. The spectra can be fitted by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72a386c8b2375bd1ccc1f5e1644439c4
https://doi.org/10.1016/j.jlumin.2018.10.090
https://doi.org/10.1016/j.jlumin.2018.10.090
Autor:
A.M. Srivastava, Daniel Åberg, Zachary M. Seeley, Nerine J. Cherepy, Fei Zhou, S.A. Payne, Holly Ann Comanzo, A. Drobshoff, R. A. Osborne
Publikováno v:
Optical Materials. 84:130-136
A new narrowband red phosphor, Ba0.8Sr0.2Mg3SiN4:Eu, suitable for use in LED lighting, has been identified as the optimal composition from the series of Ba(1-x)SrxMg3SiN4:Eu including x = 0, 0.2, 0.5, 0.8, and 1. Experimental X-ray diffraction measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29994dcfaca02447d9eb290394b3c3b2
https://doi.org/10.1016/j.optmat.2018.06.032
https://doi.org/10.1016/j.optmat.2018.06.032
Publikováno v:
Optical Materials. 75:809-813
The low temperature spectroscopic properties of Bi3+ impurities in the double perovskite, La2MgTiO6, is examined in this work. The luminescence is interpreted on the basis of localized Bi3+ 3P0,1 → 1S0 transition. Band structure calculations reveal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67ff2ea3e9d6d7ab7e6b6435a3de332a
https://doi.org/10.1016/j.optmat.2017.11.031
https://doi.org/10.1016/j.optmat.2017.11.031
Publikováno v:
Journal of Luminescence. 192:620-625
We have examined the luminescence of Bi 3+ (6s 2 ) in La 2 LiSbO 6 which is a monoclinic distorted double (ordered) perovskite. The optical properties of Bi 3+ can be rationalized in terms of the localized 3 P 0,1 → 1 S 0 emission transition. There
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93f948885686b70d510aeaa68d8ed0e8
https://doi.org/10.1016/j.jlumin.2017.07.058
https://doi.org/10.1016/j.jlumin.2017.07.058
Autor:
A.M. Srivastava, Tessa Pocock, Holly Ann Comanzo, Mikhail G. Brik, William Erwin Cohen, William Winder Beers
Publikováno v:
ECS Journal of Solid State Science and Technology. 7:R3158-R3162
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d9598f3fcb492a17dcecc0c1cad2a3f
https://doi.org/10.1149/2.0191801jss
https://doi.org/10.1149/2.0191801jss
Autor:
Paul Michael Smigelski, Jianing Gao, Aharon Yakimov, Holly Ann Comanzo, Oltea Puica Siclovan, Yin Weijun, Karthik K. Bodla, Anil Raj Duggal
Publikováno v:
AIAA Propulsion and Energy 2019 Forum.
Electric machines are integral parts of a hybrid-electric propulsion system for an aircraft to achieve higher fuel-saving and lower carbon emission. Poor heat transfer efficiency from the winding and the magnetic core limits the power density of moto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e7d1f03230a26504fd83093dc6c99e5
https://doi.org/10.2514/6.2019-4510
https://doi.org/10.2514/6.2019-4510
Autor:
A.M. Srivastava, Holly Ann Comanzo
Publikováno v:
Optical Materials. 63:118-121
The spectroscopic properties of the Bi3+ ion as a function of its concentration is examined to clarify the nature of optical transitions that are responsible for the ultraviolet (333 nm) and visible emission of GdAlO3:Bi3+. The UV band which is chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b33897f80357b758ca8ca9d30eed612
https://doi.org/10.1016/j.optmat.2016.05.042
https://doi.org/10.1016/j.optmat.2016.05.042
Autor:
Alok Mani Srivastava, Daniel Åberg, Jessica M. Demeyer, Deborah L. Schlagel, Thomas A. Lograsso, Ich C. Tran, A. Drobshoff, H. Paul Martinez, S.J. Camardello, Nerine J. Cherepy, Kiel Holliday, Nicholas M. Harvey, Zachary M. Seeley, Holly Ann Comanzo, Fei Zhou, Stephen A. Payne
Publikováno v:
Optical Materials. 54:14-21
We report high efficiency luminescence with a manganese-doped aluminum nitride red-emitting phosphor under 254 nm excitation, as well as its excellent lumen maintenance in fluorescent lamp conditions, making it a candidate replacement for the widely
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a99e91ac2239b6b9de6ab81e0d8f22b0
Publikováno v:
Optical Materials. 48:31-35
We have studied the low temperature (15–300 K) spectroscopic properties of Bi3+ impurities in the pyrochlore Y2Ti2O7. The spectroscopic properties of Y2Ti2O7:Bi3+ are interpreted on the basis of the Bi3+(6s2)–Ti4+(4d0) metal-to-metal charge trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e578376d94acb83649bcfcede2e4cf95
https://doi.org/10.1016/j.optmat.2015.07.020
https://doi.org/10.1016/j.optmat.2015.07.020
Publikováno v:
Journal of Luminescence. 148:262-266
The spectroscopic properties of the Pr3+ ion in NaGdSb2O7 are discussed in this paper. The host crystallizes in the orthorhombic weberite crystal structure with the general formula, A2B2O7. The Pr3+ luminescence is dominated by emission transitions e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::981d39d712e361b1c68f2ec9d12a0ce9
https://doi.org/10.1016/j.jlumin.2013.11.080
https://doi.org/10.1016/j.jlumin.2013.11.080