The 65h JSAP Spring Meeting, 2018

Presentation information

Poster presentation

6 Thin Films and Surfaces » 6.4 Thin films and New materials

[19p-P6-1~17] 6.4 Thin films and New materials

Mon. Mar 19, 2018 1:30 PM - 3:30 PM P6 (P)

1:30 PM - 3:30 PM

[19p-P6-16] Optical properties of non-polar ZnO films grown by catalytic reaction-assisted chemical vapor deposition

〇(M1)Taro Saito1, Munenori Ikeda1, Ariyuki Kato1, Koichiro Oishi2, Hironori Katagiri2, Kanji Yasui1 (1.Nagaoka Univ. Technol., 2.Nat. Inst. Technol., Nagaoka Coll.)

Keywords:catalytic reaction, nonpolar ZnO, polarization property

Non-polar ZnO films were grown on r-plane sapphire substrates through a reaction between dimethylzinc and high-temperature H2O produced by a Pt-catalyzed H2 and O2 reaction. The ZnO films were found to have an anisotropic surface morphology with stripe arrays. Since the ZnO films exhibited linearly polarized emission, angular dependences of the laser light for excitation and the emission light on the crystalline axis of the ZnO films were evaluated. The band-edge luminescence at 3.3 eV was a maximum when the electric field vector E was parallel to the [1-100] direction and a minimum when E was parallel to the c-axis. The polarization emission characteristic may be derived from the crystal domain structure.