Photoluminescence of thin films ZrO2 : Er3+ excited by soft X-ray

作者: Lee-Jene Lai , Tieh-Chi Chu , Meng-I Lin , Yao-Kwang Lin

DOI: 10.1016/J.SSC.2007.08.028

关键词:

摘要: Abstract The photoluminescence (PL) properties and crystalline structure of undoped erbium ion (Er 3+ )-doped zirconia (ZrO 2 ) that were prepared by sol–gel methods examined. ZrO films exhibited a dopant concentration-dependent phase. As the Er ions’ concentration increases, amount monoclinic phases declines. However, proportion tetragonal phase is enhanced. This fact suggests ions replace Zr 4+ cause transition in host lattice . Photoluminescence bands observed exciting film at 300 eV with soft X-rays. Experimental results showed PL emission +3 -doped can be tuned controlling concentration. In particular, increasing concentration, blue are quenched whereas green red phenomenon explained as non-radiative energy transfer.

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