Abstract
Diamond-like carbon (DLC) layer was deposited by the Cs+ ion sputtered negative ion deposition technique between hole transport layer and indium tin oxide (ITO) anode for polymeric electroluminescent device. An acidic poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene):poly- (styrenesulphonic acid) (PEDOT:PSS) solution acting as a hole transporting material etches the ITO surface and the PEDOT:PSS/ITO interface is not stable. X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry have been used to measure the indium contamination in the organic layers such as PEDOT:PSS and poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene]. From the result, it was found that the DLC buffer layer protects ITO surface from acidic PEDOT:PSS solution and restrains the indium diffusion into organic layer. The device with the DLC layer also has electroluminescent efficiency by almost 2 times in the polymeric electroluminescent device compared with the device without diamond-like carbon layer.
| Original language | English |
|---|---|
| Pages (from-to) | 351-357 |
| Number of pages | 7 |
| Journal | Thin Solid Films |
| Volume | 483 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2005 Jul 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry
Cite this
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Diamond-like carbon as a buffer layer in polymeric electroluminescent device. / Choi, Sang Hun; Jeong, Soon Moon; Koo, Won Hoe; Jo, Sung Jin; Baik, Hong Koo; Lee, Se Jong; Song, Kie Moon; Han, Dong Won.
In: Thin Solid Films, Vol. 483, No. 1-2, 01.07.2005, p. 351-357.Research output: Contribution to journal › Article
TY - JOUR
T1 - Diamond-like carbon as a buffer layer in polymeric electroluminescent device
AU - Choi, Sang Hun
AU - Jeong, Soon Moon
AU - Koo, Won Hoe
AU - Jo, Sung Jin
AU - Baik, Hong Koo
AU - Lee, Se Jong
AU - Song, Kie Moon
AU - Han, Dong Won
PY - 2005/7/1
Y1 - 2005/7/1
N2 - Diamond-like carbon (DLC) layer was deposited by the Cs+ ion sputtered negative ion deposition technique between hole transport layer and indium tin oxide (ITO) anode for polymeric electroluminescent device. An acidic poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene):poly- (styrenesulphonic acid) (PEDOT:PSS) solution acting as a hole transporting material etches the ITO surface and the PEDOT:PSS/ITO interface is not stable. X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry have been used to measure the indium contamination in the organic layers such as PEDOT:PSS and poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene]. From the result, it was found that the DLC buffer layer protects ITO surface from acidic PEDOT:PSS solution and restrains the indium diffusion into organic layer. The device with the DLC layer also has electroluminescent efficiency by almost 2 times in the polymeric electroluminescent device compared with the device without diamond-like carbon layer.
AB - Diamond-like carbon (DLC) layer was deposited by the Cs+ ion sputtered negative ion deposition technique between hole transport layer and indium tin oxide (ITO) anode for polymeric electroluminescent device. An acidic poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene):poly- (styrenesulphonic acid) (PEDOT:PSS) solution acting as a hole transporting material etches the ITO surface and the PEDOT:PSS/ITO interface is not stable. X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry have been used to measure the indium contamination in the organic layers such as PEDOT:PSS and poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene]. From the result, it was found that the DLC buffer layer protects ITO surface from acidic PEDOT:PSS solution and restrains the indium diffusion into organic layer. The device with the DLC layer also has electroluminescent efficiency by almost 2 times in the polymeric electroluminescent device compared with the device without diamond-like carbon layer.
UR - http://www.scopus.com/inward/record.url?scp=18844462693&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18844462693&partnerID=8YFLogxK
U2 - 10.1016/j.tsf.2004.12.040
DO - 10.1016/j.tsf.2004.12.040
M3 - Article
AN - SCOPUS:18844462693
VL - 483
SP - 351
EP - 357
JO - Thin Solid Films
JF - Thin Solid Films
SN - 0040-6090
IS - 1-2
ER -