0000000001137165
AUTHOR
F. Buttitta
Effect of driving method on the degradation of organic light emitting diodes
Abstract Lifetime testing results are reported for organic light emitting diodes (OLEDs) having the structure ITO (anode)/ N , N ′-diphenyl- N , N ′-bis(3-methylphenyl)-1,1′-diphenyl-4,4′-diamine (TPD)/tris-(8-hydroxyquinoline)aluminum (AlQ)/Al (cathode) and operated using dc and pulsed waveforms for comparison. In ambient atmosphere non-encapsulated devices show a lifetime of about 70 h in pulsed operation at an initial luminance of 500 cd/m 2 , almost four times longer than in dc operation. A fast initial decay of luminance is observed for dc operation. It is most probably due to a combination of Joule heating and mobile ionic impurities migration within the OLED structure under the conti…
Weekly alternate intensive regimen FIrB/FOx in metastatic colorectal cancer patients: an update from clinical practice
Alessio Cortellini,1,2 Katia Cannita,1 Alessandro Parisi,1,2 Paola Lanfiuti Baldi,1 Olga Venditti,1 Carla D’Orazio,1,2 Antonella Dal Mas,3 Giuseppe Calvisi,3 Aldo V Giordano,4 Vincenzo Vicentini,5 Roberto Vicentini,5 Lara Felicioni,6 Antonio Marchetti,7 Fiamma Buttitta,6 Antonio Russo,8 Corrado Ficorella1,2 1Medical Oncology, St Salvatore Hospital, University of L’Aquila, L’Aquila, Italy; 2Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy; 3Department of Pathology, St Salvatore Hospital L’Aquila, L’Aquila, Italy; 4Diagnostic and Interventional Radiology, St Salvatore Hos…