Real time monitoring of ordering in pentacene films during growth by using in-situ infrared spectroscopy
| Autor: | Yunbog Kim, Dongryul Jeon |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Infrared Analytical chemistry General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Pentacene symbols.namesake chemistry.chemical_compound Fourier transform chemistry Phase (matter) 0103 physical sciences symbols Molecule General Materials Science Thin film Fourier transform infrared spectroscopy 010306 general physics 0210 nano-technology Spectroscopy |
| Zdroj: | Current Applied Physics. 17:972-975 |
| ISSN: | 1567-1739 |
| DOI: | 10.1016/j.cap.2017.04.001 |
| Popis: | By employing the in-situ Fourier transform infrared (FTIR) spectroscopy and curve-fitting, we studied the evolution in the ordering of vacuum-deposited pentacene films. In the FTIR spectra, the thin film and bulk phases appeared at 903.2 cm −1 and 907.2 cm −1 , respectively. The misoriented phase was also observed at 904.4 cm −1 . The position and the intensity of each phase varied with the film thickness as well as the growth temperature. The results indicated that most of pentacene molecules formed initially the thin film phase until the bulk and misoriented phases began to form at the increased thickness. Our study suggests that FTIR spectroscopy is an effective tool to monitor in real time the ordering of organic films for quality control. |
| Databáze: | OpenAIRE |
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