Photoluminescence lifetime of Ir(ppy)3 used for organic light emitting diodes

IEICE Electronics Express

Nadeer Aljaroudi¹  Taiju Tsuboi¹ 

[1] Faculty of Engineering, Kyoto Sangyo University

关键词: OLED;    photoemission;    lifetime;    non-radiative transition;   

DOI  :  10.1587/elex.1.281

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(9)Cited-By(2)We calculated temperature dependence of photoluminescence (PL) lifetime of fac tris(2-phenylpyridine) iridium (Ir(ppy)3) doped in 4, 4'-N, N'-dicarbazole-biphenyl (CBP). The emitting triplet state consists of three zero-field splitting substates. Taking into account non-radiative transitions among these substates, rate equations for the populations of the substates are solved and three PL lifetimes are derived. A good agreement has been obtained for the temperature dependence between the observed lifetime and calculated long lifetime.

【 授权许可】

Unknown