Publication date: 31 December 2015
Source:Thin Solid Films, Volume 597
Author(s): Wei Zhu, Kin Man Yu, W. Walukiewicz
We have synthesized Indium doped Cd1-x Znx O alloys across the full composition range using magnetron sputtering method. The crystallographic structure of these alloys changes from rocksalt (RS) to wurtzite (WZ) when the Zn content is higher than 30%. The rocksalt phase alloys in the composition range 0 < x < 0.3 can be efficiently n-type doped, shifting the absorption edge to 3.25 eV and reducing resistivity to about 2.0 × 10− 4 Ω-cm. We found that In doped CdO (ICO) transmits more solar photons than commercial fluorine doped tin oxide (FTO) with comparable sheet conductivity. The infrared transmittance is further extended to longer than 1500 nm wavelengths by depositing the In doped Cd1-x Znx O in ~ 1% of O2 . This material has a potential for applications as a transparent conductor for silicon and multi-junction solar cells.
Source:Thin Solid Films, Volume 597
Author(s): Wei Zhu, Kin Man Yu, W. Walukiewicz