Localized and Delocalized Characters in Optical Spectra of Interacting Donors in Semiconductors

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概要

• 論文の詳細を見る

• Optical absorption spectra in low and intermediate concentrations of donor impu-rities are calculated by taking account of the excitc>nic interaction between a holelocalized on a donor and a D ion. In calculating absorption spectra, the self-consistentBorn approximation is adopted. in order to treat 1>oth diagonal and off-diagonaldisorder due to random distribtttion of donors, which appears in the excitonic andtransfer terms of D states in the final state Hamiltonian, respecctively. The interplaybetween excitonic and transfer effects in absorption spectra is investigated. It is shownthat the broadening behavior of peaks in high energy region is due to transfer effectbetween donor excited states and delocalized exciton states while the broad tail in lowenergy region corresponds to the inhomogeneous broadening of the transitions tolocalized exciton states.

• 社団法人日本物理学会の論文
• 1982-04-15

著者

• KAMIMURA Hiroshi

  Department of Physics,Faculty of Science,University of Tokyo

• Gemma Nobuhiro

  Department Of Physics Faculty Of Science University Of Tokyo

• Kamimura Hiroshi

  Department Of Electronic Engineering Gunma University

• Natori Akiko

  Department Of Electronics Engineering The University Of Electro-communications

• Natori Akiko

  Department Of Electronic Engineering The University Of Electro-communications

• Natori Akiko

  Department Of Physics Faculty Of Science University Of Tokyo

• Kamimura Hiroshi

  Department Of Applied Physics . Faculty Of Science Tokyo University Of Science

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