Study On Thin Film Techniques Of Organic Luminescence And Lasing

Organic and polymer materials show promising applications as a kind of novel solid luminescence and lasing materials. Organic and polymer luminescence and lasing become people's central issue. Structures such as microcavity, inject adjust layer and microstructures of film such as assemble density ,glabrous surface,connect quality have a great effect on the efficiency and stability of the luminescence and laser devices.The thesis elaborates the advantage and disadvantage of ITO anode and develop a kind of novel anode materials - ZTO used IAD(Ion assistant deposition) way. The concept of connection and modification layer between organic and inorganic or metal layer is discussed, which expand materials of bufferlayer and other connection and modification layer. It is concluded that inject adjust layer should be used. The concept of quasi- X/4 optical thickness of metal is presented. The questions of outer-protection film of metal cathode, the improvement of metal reflection, the assemble density of organic film used electric field assist deposition and the way to reduce absorptive gas on the substrate are studied and disscussed.The short-wavelength-transmission DBR and broad band DBR for organic microcavity are designed theoretically and fabricated. The microcavity effects, such as spectrum narrowing, intensity enhancement, sharply directed emission along the cavity axis etc, are observed in the optically pumped organic microcavity. On the basis, electrically pumped organic microcavity and organic microcavity consisting of two soft film structure DBR are fabricated. In these structures, the minimum FWHM of microcavity spectrum is 3.4nm, which is only 1/25 of the nature spectrum FWHM of the organic film. The peak intensity is enhanced by a factor of 16.Practical solid dye laser is developed using R6G:MPMMA as the gain medium, Slope efficiency is 21%. The optically pumped gain narrowing induced by ASE is observed in the organic waveguide structure using DCM:Alq and Perylene:PS as gain media, respectively. It was found that the stimulated emission of perylene:PS film can be realized in both glass and ITO glass subtrates.