Organic Thin Films For Patterned 1,4-Bis(2-methylstyryl)benzene Organic Crystalline Microcavity Arrays Via Nanoprinting

Organic single crystal as the laser active material, has a high practical value, is a hot topic in recent years, the field of laser research. Contrast inorganic crystals, organic single crystals have many significant advantages, such as: high chemical purity, large stimulated emission cross section, high thermal stability and carrier mobility, highly ordered molecular structure, have a good self waveguide properties and so on. Organic single-crystalline micro/nanostructures can effectively generate and carry photons due to their smooth morphologies, high photoluminescence quantum efficiency, and minimized defects density and therefore are potentially ideal building blocks for the optical circuits in the next generation of miniaturized optoelectronics. The tailor-made organic molecules can be generally obtained by organic synthesis, ensuring that the organic molecules aggregate in a specific form and generate micro/nanostructures with desirable morphology and therefore act as the efficient laser optical resonator.Nano-imprint technology is influential one of the potential nano/ micro processing technology, since 1995 after Chinese scientist Professor Stephen Chou nanoimprint first proposed this force is extremely innovative processing technology, as nano-imprint technology has many significant advantages, such as: high resolution, the cost is very low, it is possible to achieve large-scale production, etc., since the last ten years, nanoimprint technology has aroused extensive research within the industry boom, so far it has developed a hot stamping, embossing and micro-contact print marks and other forms of UV imprint method.While organic crystals has made some progress in the field of photonics, but the study of organic semiconductor crystal is still relatively limited, in many scenarios some major problems. In order to have good organic crystal devices used in large-scale or very large scale integrated circuits, a key issue is to make organic crystals at the target position accurately reproduced by synthesis precisely controlled. This paper was prepared by a high-performance micro-organic crystal resonator structure, and realized the laser resonator, obtained the following results:1,4-Bis(2-methylstyryl)benzene(OMSB)organic crystalline microstructure arrays with high quality were fabricated by the nanoimprint method. The microstructure arrays were characterized by scanning electron microscopy(SEM), fluorescence microscope and photoluminescence(PL)spectroscopy etc. The results show flat the microstructure arrays are 20μm in width and emit strong green fluorescence and typical strong waveguide behavior. By changing the size or shape of the imprint template pattern used can be of different size and shape of the pattern array. This organic crystal microcavity array of flexible, low-cost large-area optoelectronic devices in the field has great potential.