Enhancement of hole mobility in high-rate reactively sputtered Cu2O thin films induced by laser thermal annealing
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866929316900634624 |
|---|---|
| author | Rezek, Jiri Kucera, Martin Kozak, Tomas Cerstvy, Radomir Franc, Ales Baroch, Pavel |
| author_facet | Rezek, Jiri Kucera, Martin Kozak, Tomas Cerstvy, Radomir Franc, Ales Baroch, Pavel |
| contents | In presented work, a reactive high-power impulse magnetron sputtering (r-HiPIMS) was used for high-rate deposition ( 170 nm/min) of Cu2O films. Films were deposited on a standard soda-lime glass (SLG) substrate at a temperature of 190C. As-deposited films exhibit poor hole mobility in the orders of 1 cm2/Vs. We have systematically studied the effect of laser thermal annealing (LTA) procedure performed using high-power infrared laser under different laser parameters (number of pulses, length of the pulse). We have found, LTA procedure could significantly enhance the hole mobility (up to 24 cm2/Vs in our case). We have also fitted the results of a temperature-dependent Hall measurement to clarify the mechanism of the reported increase in hole mobility. Moreover, we have discussed the effect of the LTA procedure on microstructure (crystallinity, surface morphology) and on the value of optical band gap. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_11128 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Enhancement of hole mobility in high-rate reactively sputtered Cu2O thin films induced by laser thermal annealing Rezek, Jiri Kucera, Martin Kozak, Tomas Cerstvy, Radomir Franc, Ales Baroch, Pavel Applied Physics In presented work, a reactive high-power impulse magnetron sputtering (r-HiPIMS) was used for high-rate deposition ( 170 nm/min) of Cu2O films. Films were deposited on a standard soda-lime glass (SLG) substrate at a temperature of 190C. As-deposited films exhibit poor hole mobility in the orders of 1 cm2/Vs. We have systematically studied the effect of laser thermal annealing (LTA) procedure performed using high-power infrared laser under different laser parameters (number of pulses, length of the pulse). We have found, LTA procedure could significantly enhance the hole mobility (up to 24 cm2/Vs in our case). We have also fitted the results of a temperature-dependent Hall measurement to clarify the mechanism of the reported increase in hole mobility. Moreover, we have discussed the effect of the LTA procedure on microstructure (crystallinity, surface morphology) and on the value of optical band gap. |
| title | Enhancement of hole mobility in high-rate reactively sputtered Cu2O thin films induced by laser thermal annealing |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2404.11128 |