Abstract
The thermal neutron effect on the copper indium gallium (di)selenide thin film synthesized by the sol-gel dip-coating technique has explained the novel use of this film under extreme conditions (such as neutron irradiation fields). The thin film samples were treated by using the reactor neutrons to obtain the optimum neutron treatment for the determination of the variations in the structural characteristics. The gamma filter system has provided the evaluation of the high thermal neutron flux effect on the thin film samples by using the tangential beam tube of ITU TRIGA Mark–II reactor. The influence of the neutron effect on the electrical and optical features was explained by the rise of selenium amount in the thin film. The neutron-treated thin film samples (at 50 at. % Se) had a significant effect on the lowest electrical resistivity depending on the increase of the film density. The equivalent gamma dose of the neutron-treated thin film was determined as a 0.024 Gy dose level for neutron irradiation. The neutron treatment was significant to evaluate the decrease in the sheet resistivity of the thin film at this dose level. The neutron dose has led to a slight decrease in the optical band gap as the result of the thermal and epithermal neutrons' effects on the thin film.
| Original language | English |
|---|---|
| Article number | 113110 |
| Journal | Optical Materials |
| Volume | 134 |
| DOIs | |
| Publication status | Published - Dec 2022 |
Bibliographical note
Publisher Copyright:© 2022 Elsevier B.V.
Funding
This study was supported financially as PhD research project by Istanbul Technical University - ITU BAP project (with 1672 project ID no and 37102 project code).
| Funders | Funder number |
|---|---|
| International Technological University | 37102 |
| Istanbul Teknik Üniversitesi |
Keywords
- CIGS
- Neutrons
- Sol-gel
- Tangential beam tube
- TRIGA Mark-II