2020 Fiscal Year Annual Research Report
Development of a high sensitive hydrogen gas detector based on the photoluminescence property of ZnO-based nanostructures
| Project/Area Number |
17K06394
|
|---|
| Research Institution | Kochi University of Technology |
|---|
Principal Investigator |
李 朝陽 高知工科大学, システム工学群, 教授 (50461380)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
川原村 敏幸 高知工科大学, システム工学群, 教授 (00512021)
|
|---|
| Project Period (FY) |
2017-04-01 – 2021-03-31
|
| Keywords | core-shell structures / large surface area / optical sensor / photoluminescence |
|---|
| Outline of Annual Research Achievements |
The well-arrayed ZnO nanostructures and ZnO-TiO2 core-shell structures were successfully developed. The various defects in the nanostructures were well controlled and the mechanism was revealed.
In the last year, the demonstrated photoluminescence type gas sensor was developed, which showed that high photoluminescence sensitivity within visible range for the reducing gases (hydrogen and ethanol gases). The varied visible emissions could be observed with change of gas concentration as well as different kinds of gases. The response and recovery time were test and performed well.
The developed ZnO based nanostructures are easily processed with high producibility and stability. The developed technique of ZnO-based visible gas sensor has high potential applying for detecting reducing gases.
|
