Blue-light emission at room temperature from Ar+-irradiated SrTiO3

DOI PDF Web Site 被引用文献51件

書誌事項

公開日
2005-10-09
権利情報
  • https://www.springer.com/tdm
  • https://www.springer.com/tdm
DOI
  • 10.1038/nmat1498
公開者
Springer Science and Business Media LLC

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説明

Oxide-based electronic devices are expected to have fascinating properties, unlike those made from conventional semiconductors. SrTiO3 (STO) is a key material for this new field of electronics1,2,3,4,5,6,7,8,9,10,11. Here we report on blue-light emission at room temperature from Ar+-irradiated, metallic STO. The irradiation introduces oxygen deficiencies to a depth of ∼20 nm from the crystal surface. These deficiencies generate conduction carriers and stabilize a hole level in a self-trapped state. We propose a model by which the doped conduction electrons and the in-gap state produce a radiative process that results in blue-light emission. The emitting region can be patterned into any size and shape with conventional microscopic fabrication techniques.

収録刊行物

  • Nature Materials

    Nature Materials 4 (11), 816-819, 2005-10-09

    Springer Science and Business Media LLC

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