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Influence of the atmosphere on organic–organic interfacial layers and deterioration in organic light‐emitting diodes
Author(s) -
Nakamura Hirofumi,
Noh SeongHee,
Kuribayashi Miki,
Adachi Chihaya
Publication year - 2015
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.318
Subject(s) - oled , materials science , optoelectronics , contamination , atmosphere (unit) , capacitance , diode , interface (matter) , environmental science , layer (electronics) , composite material , chemistry , meteorology , electrode , ecology , physics , capillary number , capillary action , biology
Abstract The influence of organic–organic interfacial contaminants and deterioration in organic light‐emitting diodes (OLEDs) was investigated. There was deterioration of the device characteristics when atmospheric contamination was introduced to the emission site. We simultaneously observed a decrease of the maximum capacitance, C max , of the OLEDs, implying that there was charge accumulation at the interface. Our study demonstrates that maintaining the interface adjacent to emission site free from contaminants is crucial to protect the device from deterioration.