Photoluminescence study on Eu-implanted GaN

• 来源期刊: 中国物理（英文版）
• 关键词: photoluminescence metalorganic chemical vapour deposition implanting gallium nitride
• 年，卷（期）: 2005,（10）
• 页码范围: 2141-2144
• 页数: 4页
• 语种: 英文

摘要

The photoluminescence (PL) properties of Eu-implanted GaN thin films are studied. The experimental results show that the PL intensity is seriously affected by ion implantation conditions. The PL efficiency increases exponentially with annealing temperature increasing up to a maximum temperature of 1050℃. Moreover, the PL intensity for the sample implanted along the channelling direction is nearly twice more than that observed from the sample implanted along the random direction. The thermal quenching of PL intensity from 10K to 300K for sample annealed at 1050℃ is only 42.%.