Published August 30, 2008 | Version v1
Journal article Metadata-only

Effect of Ca interlayer thickness on electron injection of lithium quinolate/Ca/Al cathodes

Creators

  • 1. School of Chemical and Biological Engineering, Seoul National University, Shinlim-dong, Kwanak-gu, Seoul 151-742 (Korea, Republic of)
  • 2. AMOLED Business Team, Samsung SDI, Gongse-dong, Kiheung-gu, Yongin-si, Kyonggi-do 449-577 (Korea, Republic of)
  • 3. Department of Polymer Science and Engineering, Dankook University, Jukjeon-dong, Suji-gu, Yongin, Kyeonggi 448-701 (Korea, Republic of)

Description

Electron injection behavior of lithium quinolate (Liq)/Ca/Al cathode was investigated by using X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy (UPS). Interfacial energy barrier lowering of Liq/Ca/Al cathode was dependent on Ca thickness and maximum energy level shift was observed at a Ca thickness of 1 nm. Maximum current density could be obtained in Liq/Ca/Al device at a Ca thickness of 1 nm and it was well correlated with energy level shift from UPS measurement. Power efficiency of Liq/Al device could be improved by more than 70% by inserting Ca layer between Liq and Al

Availability note (English)

Available from http://dx.doi.org/10.1016/j.apsusc.2008.05.169

Additional details

Identifiers

DOI
10.1016/j.apsusc.2008.05.169;
PII
S0169-4332(08)01178-1;

Publishing Information

Journal Title
Applied Surface Science
Journal Volume
254
Journal Issue
21
Journal Page Range
p. 7061-7063
ISSN
0169-4332
CODEN
ASUSEE

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40033674
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALUMINIUM; CALCIUM; CATHODES; CURRENT DENSITY; ELECTRON BEAM INJECTION; ENERGY LEVELS; LAYERS; LITHIUM COMPOUNDS; ULTRAVIOLET RADIATION; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
ALKALI METAL COMPOUNDS; ALKALINE EARTH METALS; BEAM INJECTION; ELECTRODES; ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; ELEMENTS; METALS; PHOTOELECTRON SPECTROSCOPY; RADIATIONS; SPECTROSCOPY

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.