Optical properties and morphology of thin diindenoperylene films

• Published in: Journal of luminescence Vol. 110; no. 4; pp. 290 - 295
• Main Authors: Heilig, M., Domhan, M., Port, H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.12.2004; Elsevier
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Diindenoperylene; Exact sciences and technology; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; Organic nanostructures; Physics; Thin film; Time-resolved fluorescence spectroscopy; 78.66.Qn; 78.47.+p; Organic nanostructures; Diindenoperylene; 78.67. - n; Time-resolved fluorescence spectroscopy; 33.50.Dq; Thin film; Scanning probe microscopy; Fluorescence; Nanostructures; Time resolved spectra; 78.67.-n; Luminescence decay; Perylene derivatives; 33.50.Dq Organic nanostructures; Thin films; Optical properties; Microstructure; Energy transfer; Organic compounds
• ISSN: 0022-2313; 1872-7883
• DOI: 10.1016/j.jlumin.2004.08.023

Thin films of diindenoperylene deposited on weakly interacting substrates (quartz) are characterized with scanning probe microscopy techniques at room temperature and by pico-second time-resolved fluorescence spectroscopy between 5 and 300 K. Pronounced T-dependencies of fluorescence spectra and decays are found. The interplay between two fluorescence series in a narrow temperature range ( 80 K ⩽ T ⩽ 100 K ) has been spectrally and temporally resolved. The possible origin of the observed series, competing energy transfer and quenching processes is discussed.