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P‐230: Late‐News‐Poster: Evaluations of Lithium‐Fluoride Behavior in OLEDs by Means of Cyclic‐Displacement Current‐Measurement Method
Author(s) -
Inoue Masaru,
Kaneko Yoshiyuki,
Fujimoto Hiroshi,
Miyazaki Hiroshi,
Adachi Chihaya
Publication year - 2020
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14338
Subject(s) - lithium fluoride , oled , displacement current , materials science , current (fluid) , lithium (medication) , fluoride , displacement (psychology) , voltage , optoelectronics , composite material , analytical chemistry (journal) , layer (electronics) , chemistry , electrical engineering , inorganic chemistry , chromatography , engineering , psychology , psychotherapist , medicine , endocrinology
We propose a cyclic displacement current measurement method to investigate the behavior of lithium fluoride (LiF) in OLEDs by applying a cyclic voltage and measuring a repeatable current. We found that a LiF layer reduces electron injection barrier, increases a hole injection barrier, and improves the discharge process. This method allows us to clarify the charge injection process of OLEDs in detail.