A 50% increase in the terbium-based OLED luminance through reducing the excited-state lifetime due to the introduction of gold nanoparticles

• Published in: Dalton transactions : an international journal of inorganic chemistry Vol. 51; no. 42; pp. 1665 - 1669
• Main Authors: Gladkikh, Arseny Yu, Kozlov, Makarii I, Vashchenko, Andrey A, Medved'ko, Aleksei V, Goloveshkin, Alexander S, Bolshakova, Anastasia V, Latipov, Egor V, Utochnikova, Valentina V
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 01.11.2022
• Subjects: Carboxylates; Carrier injection; Excitation; Gold; Nanoparticles; Terbium
• ISSN: 1477-9226; 1477-9234; 1477-9234
• DOI: 10.1039/d2dt02446b

An increase in the efficiency for a terbium-based OLED was achieved by introducing gold nanoparticles into the PEDOT:PSS hole injection layer and was mainly due to the improvement in carrier injection and the reduction of the excited-state lifetime. The introduction of plasmon-resonant gold nanoparticles resulted in a 50% increase in the Tb(czb) 3 TDZP luminance, which reached 480 cd m −2 and is the highest result for OLEDs based on aromatic carboxylates. The first study of the gold nanoparticles introduction into the lanthanide-based OLED demonstrated a 50% increase in the luminance of terbium-based OLED. This effect was proved to be due to the decrease in the excited state lifetime.