Identification of bound exciton complexes in ZnO
Identification of bound exciton complexes in ZnO
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ZnO 中束缚激子复合物的鉴定
DOI：
10.1002/pssb.200304187
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
B. Meyer
中科院分区：
文献类型：
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作者：
M. Strassburg;A. Rodina;M. Dworzak;U. Haboeck;I. Krestnikov;A. Hoffmann;O. Gelhausen;M. Phillips;H. Alves;A. Zeuner;D. Hofmann;B. Meyer
基于磁光测量和扩散实验，提出了氧化锌中浅键激子中心的识别方法。Zeeman分裂组分的热化行为证实了I4、I6、I8和I9激子线来源于供体结合激子复合物。浅界激子配合物的理论分析支持了这一结果，揭示了上价带的Γ7对称性。与各自跃迁相关的两个电子卫星的存在进一步证明了供体结合配合物的存在，并使供体结合能的测定成为可能。通过掺杂、扩散和退火实验，结合光致发光和二次离子质谱分析，确定了I4、I6、I8和I9系的来源为氢、铝、镓和铟。（©2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim）
An identification of shallow bound exciton centers in ZnO is presented based on magneto‐optical measurements and diffusion experiments. The thermalization behavior of the Zeeman split components confirms that the I4, I6, I8 and I9 exciton lines stem from donor bound exciton complexes. The results are supported by theoretical analysis of shallow bound exciton complexes revealing the Γ7 symmetry of the upper valence band. The presence of two‐electron satellites related to the respective transitions is further evidence for the donor bound complexes and enabled the determination of donor binding energies. Hydrogen, aluminum, gallium and indium were identified to origin the I4, I6, I8 and I9 lines by doping, diffusion and annealing experiments combined with photoluminescence and secondary ion mass spectrometry. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)