Exciton and interband optical transitions in hBN single crystal

Details Exciton and interband optical transitions in hBN single crystal Exciton and interband optical transitions in hBN single crystal

2011-02-24

arxiv.org/abs/1102.5017v1

Physics

Condensed Matter

Materials Science

Scientific paper

Near band gap photoluminescence (PL) of hBN single crystal has been studied at cryogenic temperatures with synchrotron radiation excitation. The PL signal is dominated by the D-series previously assigned to excitons trapped on structural defects. A much weaker S-series of self-trapped excitons at 5.778 eV and 5.804 eV has been observed using time-window PL technique. The S-series excitation spectrum shows a strong peak at 6.02 eV, assigned to free exciton absorption. Complementary photoconductivity and PL measurements set the band gap transition energy to 6.4 eV and the Frenkel exciton binding energy larger than 380 meV.

Affiliated with

Also associated with

No associations

Rating

Exciton and interband optical transitions in hBN single crystal does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Exciton and interband optical transitions in hBN single crystal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exciton and interband optical transitions in hBN single crystal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-86900