6533b7d5fe1ef96bd126452f
RESEARCH PRODUCT
Processing of amorphous Si by pulsed laser irradiation at different wavelengths
Jelena ButikovaA MuhinsBoris PolyakovG. MarcinsA VoitkansI. Talesubject
Amorphous siliconMaterials scienceSiliconbusiness.industrychemistry.chemical_elementCrystal growthLaserFluenceAmorphous solidlaw.inventionchemistry.chemical_compoundOpticschemistrylawOptoelectronicsCrystalliteThin filmbusinessdescription
Amorphous Si thin films deposited on thermally oxidized Si wafers have been processed by the 2 nd and 3 rd harmonics of Nd:YAG laser. Surface modification of amorphous silicon layers have been investigated by scanning electron microscopy before and after chemical etching of processed silicon films. The super-lateral crystal growth regime was achieved with laser fluence of 280 mJ/cm 2 for the 2 nd harmonics and 155 mJ/cm 2 for the 3 rd harmonics. The grain size in polycrystalline Si samples prepared by successive crystallization in the lateral growth regime is about 0.5 - 1 μm.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-08-20 | IOP Conference Series: Materials Science and Engineering |