Electron irradiation effects on the optical properties of Hf- and Zn-doped β-Ga2O3.

التفاصيل البيبلوغرافية
العنوان:	Electron irradiation effects on the optical properties of Hf- and Zn-doped β-Ga2O3.
المؤلفون:	Remple, Cassandra, Huso, Jesse, Weber, Marc H., McCloy, John S., McCluskey, Matthew D.
المصدر:	Journal of Applied Physics; 5/14/2024, Vol. 135 Issue 18, p1-10, 10p
مصطلحات موضوعية:	OPTICAL properties, IRRADIATION, ELECTRONS, GALLIUM
مستخلص:	Optical and electrical properties of Hf- and Zn-doped β-Ga2O3 samples, which are n-type and insulating, respectively, were altered via high-energy electron irradiation at 2.5 or 0.5 MeV. The β-Ga2O3:Hf samples irradiated with 2.5 MeV electrons experienced a color change from blue to yellow and a large drop in conductivity, attributed to the creation of gallium vacancies, which compensate donors. This irradiation resulted in the absence of free carrier absorption and the presence of Cr³⁺ photoluminescence (PL). PL mapping prior to irradiation revealed optically active ZnO precipitates that formed during the growth of β-Ga2O3:Zn. These precipitates have a 384 nm (3.23 eV) stacking fault emission in the core; in the outer shell of the precipitate, the PL blue-shifts to 377 nm (3.29 eV) and a broad defect band is observed. After 0.5 MeV electron irradiation, the defect band broadened and increased in intensity. The blue PL band (435 nm) of β-Ga2O3 was enhanced for both Hf- and Zn-doped samples irradiated with 0.5 MeV. This enhancement is correlated with an increase in oxygen vacancies. [ABSTRACT FROM AUTHOR]
	Copyright of Journal of Applied Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
قاعدة البيانات:	Complementary Index

Find this article in full text from Scitation.

كن أول من يترك تعليقا!