INVESTIGATION OF ALQ3 MOLECULES DISSOLVED IN CHCL3 AND EMPLOYED AS THIN-FILMS
We investigate the optical and electrical properties of Tris-(8-hydroxyquinoline)aluminum (Alq3), which has been used as the sole electron-transport material in various optoelectronic applications. The compound is highly emissive both in solution and thin-film configurations. Alq3 dissolved in CHCL3 reveals two absorption bands at ~259 and 388nm. When the solution endures reduction to millimolar concentrations, two vibronic progressions are resolved at ~334 and ~319nm. The thin-films were fabricated by depositing Alq3 onto borosilicate glass using the spin-coating method to achieve varying degrees of thickness. In thin-film samples, it is found that a prominent narrow absorption peak emerges at ~259 nm with a broad band at ~360 nm. The film fabrication method and optoelectronic properties are presented in detail.
Funding support provided by the Georgia Space Grant Consortium, a NASA Training Grant NNH18ZHA007C and UWG SRAP and COSM FRG programs.
Welchel, Zachary James and DeSilva, L. Ajith
"INVESTIGATION OF ALQ3 MOLECULES DISSOLVED IN CHCL3 AND EMPLOYED AS THIN-FILMS,"
Georgia Journal of Science, Vol. 78, No. 1, Article 76.
Available at: https://digitalcommons.gaacademy.org/gjs/vol78/iss1/76