| Summary: | 博士 === 國立交通大學 === 電子物理系所 === 99 === We developed a system of non-collinear optical parametric amplifier (NOPA) which has sub-10 fs laser pulses output with smooth and broad spectrum successfully. Using multi-channel lock-in measurement system with new developed fast-scan system, ultrafast dynamic signal at every probe wavelengths can be measured simultaneously and efficiently with excellent signal-to-noise ratio.
As an application of the above spectroscopy system, we performed ultrafast dynamics of an organic polymer of poly(3-hexylthiophene) (P3HT) molecule, which is supposed to be hopeful material for organic solar cell. In this work the ultrafast spectroscopy of P3HT we performed clarifies its ultrafast dynamics, relaxation time, and defect concentration inside the thin film. From these novel results I hope to provide key information to improve the performance of the solar cell.
|
|---|
