Abstract
We present investigations of Gd-implanted aluminum nitride, studied with cathodoluminescence (CL) as well as time-resolved CL in the temperature range 12–300 K. Luminescence due to intra-4f electron transitions of Gd3+ is dominated by the P7/26→S7/28 transition between the first excited state and the ground state of Gd3+ detected at around 318 nm. Time-resolved CL of the P7/26 level monitoring the P7/26→S7/28 transition shows a temperature-dependent lifetime which decreases from 0.76 ms at 12 K to 0.69 ms at 300 K, in contrast to an increasing intensity of the P7/26→S7/28 transition by a factor of more than 3.5 in the same temperature range. The decay is of the Inokuti–Hirayama-type indicating energy transfer between Gd3+ ions. Due to the overall weak splitting of the P7/26 and S7/28 multiplets phonon replica with energies of 100 and 588 cm−1 can be assigned.
References
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Dates
Type | When |
---|---|
Created | 21 years, 11 months ago (Sept. 11, 2003, 9:03 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 3, 2024, 8:27 p.m.) |
Indexed | 2 months, 2 weeks ago (June 12, 2025, 8:25 a.m.) |
Issued | 21 years, 11 months ago (Sept. 15, 2003) |
Published | 21 years, 11 months ago (Sept. 15, 2003) |
Published Print | 21 years, 11 months ago (Sept. 15, 2003) |
@article{Vetter_2003, title={Intense ultraviolet cathodoluminescence at 318 nm from Gd3+-doped AlN}, volume={83}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1605237}, DOI={10.1063/1.1605237}, number={11}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Vetter, Ulrich and Zenneck, Jan and Hofsäss, Hans}, year={2003}, month=sep, pages={2145–2147} }