A time-resolved luminescence spectroscopy study of self-trapped excitons in NH4H2PO4 crystals / Ogorodnikov IN,Pustovarov VA,Kirm M,Cheremnykh VS // JOURNAL OF LUMINESCENCE. - 2005. - V. 115, l. 1-2. - P. 69-76.

ISSN/EISSN:

0022-2313 / нет данных

Type:

Article

Abstract:

A complex investigation of the dynamics of electronic excitations and luminescence in nonlinear optical crystals of ammonium dihydrophosphate NH4H2PO4 was performed using low-temperature vacuum ultraviolet luminescence spectroscopy with time resolution upon selective photoexcitation by synchrotron radiation. Data on the photoluminescence (PL) decay kinetics, time-resolved PL spectra (2-6.2eV), and time-resolved PL excitation spectra (4-24eV) were obtained for the first time for NH4H2PO4 crystals at 8 K. It is ascertained that the PL of NH4H2PO4 crystals in the vicinity of 4.7 eV has intrinsic character due to the radiative annihilation of self-trapped excitons. Possible channels of generation and decay of relaxed and unrelaxed electronic excitations in NH4H2PO4 crystals are discussed. (c) 2005 Elsevier B.V. All rights reserved.

Author keywords:

NH4H2PO4 (ADP); ammonium dihydrophosphate; nonlinear optical crystal; luminescence spectroscopy; self-trapped exciton ULTRAVIOLET REFLECTION; KH2PO4; KDP; ADP; ABSORPTION

DOI:

10.1016/j.jlumin.2005.02.016

Web of Science ID:

ISI:000231792400010

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	ULTRAVIOLET REFLECTION; KH2PO4; KDP; ADP; ABSORPTION
Research-Areas	Optics
Web-of-Science-Categories	Optics
Author-Email	ogo@dpt.ustu.ru
ResearcherID-Numbers	Ogorodnikov, Igor/B-4162-2011 Kirm, Marco/M-1533-2016
ORCID-Numbers	Ogorodnikov, Igor/0000-0002-4700-2340 Kirm, Marco/0000-0002-1833-6894
Number-of-Cited-References	16
Usage-Count-Since-2013	1
Journal-ISO	J. Lumines.
Doc-Delivery-Number	963GQ