@inproceedings{oai:kanazawa-u.repo.nii.ac.jp:00007697,
 author = {久米田, 稔 and 森本, 章治 and 清水, 立生 and Kumeda, Minoru and Sekizawa, Yoshitaka and Morimoto, Akiharu and Shimizu, Tatsuo},
 book = {910Materials Research Society Symposium Proceedings},
 month = {Jan},
 note = {The crystal-field potential at the Er3+ ion surrounded by six oxygen ions is expanded in terms of polynomials. After converting it into equivalent angular momentum operators, the Stark-splitting of the 4I15/2 ground state of the Er3+ ion is calculated. Influence of the change in the environment of the Er3+ ion on the shift of the energy levels is investigated and compared with the observed Er photoluminescence spectrum in a-Si:H. The scattering of the calculated energy levels by the structural fluctuation around the Er 3+ ion is also compared with the linewidth of the component photoluminescence lines. © 2006 Materials Research Society., 金沢大学設計製造技術研究所 / 金沢大学理工研究域電子情報学系 / 金沢大学工学部},
 pages = {131--136},
 publisher = {Materials Research Society},
 title = {Environment of Er doped in a-Si:H and its relation with photoluminescence spectra},
 volume = {910},
 year = {2007}
}