| Title |
Fabrication and Performance Investigation of Surface Temperature Sensor Using Fluorescent Nanoporous Thin Film II |
| Authors |
김현정(Hyun Jung Kim) ; 유재석(Jaisuk Yoo) ; 박진일(Jinil Park) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2013.25.12.674 |
| Keywords |
나노 다공성 ; 2색 측정 ; 형광 Nanoporous ; 2-color measurement ; Fluorescent |
| Abstract |
We present a non-invasive technique to the measure temperature distribution in nano-sized porous thin films by means of the two-color laser-induced fluorescence (2-LIF) of rhodamine B. The fluorescence induced by the green line of a mercury lamp with the makeup of optical filters was measured on two separate color bands. They can be selected for their strong difference in the temperature sensitivity of the fluorescence quantum yield. This technique allows for absolute temperature measurements by determining the relative intensities on two adequate spectral bands of the same dye. To measure temperature fields, Silica (SiO2) nanoporous structure with 1-um thickness was constructed on a cover glass, and fluorescent dye was absorbed into these porous thin films. The calibration curves of the fluorescence intensity versus temperature were measured in a temperature range of 10-60℃, and visualization and measurement of the temperature field were performed by taking the intensity distributions from the specimen for the temperature field. |