Abstract
We present solution-processable electron-transport layers (ETL) with highly enhanced electron-injection and electron-transport properties and resistance to oxygen and moisture for solution-processed organic light-emitting diodes (OLEDs). We selected polyethyleneimine ethoxylated (PEIE) as the ETL and Cs2CO3, CsF, and tris(8-hydroxyquinolinato)aluminum (Alq3) as n-type dopants. Compared with OLEDs with undoped PEIE as the ETL, the OLEDs with doped PEIE (d-PEIE) showed significantly improved luminance, efficiency, and lifetimes. These improvements are attributed to d-PEIE decreasing the work function of the Al metal cathode, as shown by ultraviolet photoelectron spectroscopy (UPS) analysis, and improving the gas and moisture resistance.
| Original language | English |
|---|---|
| Pages (from-to) | 3097-3106 |
| Number of pages | 10 |
| Journal | Journal of Materials Chemistry C |
| Volume | 5 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2017 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Chemistry
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Designing an electron-transport layer for highly efficient, reliable, and solution-processed organic light-emitting diodes. / Kim, Jin Hoon; Park, jin woo.
In: Journal of Materials Chemistry C, Vol. 5, No. 12, 01.01.2017, p. 3097-3106.Research output: Contribution to journal › Article
TY - JOUR
T1 - Designing an electron-transport layer for highly efficient, reliable, and solution-processed organic light-emitting diodes
AU - Kim, Jin Hoon
AU - Park, jin woo
PY - 2017/1/1
Y1 - 2017/1/1
N2 - We present solution-processable electron-transport layers (ETL) with highly enhanced electron-injection and electron-transport properties and resistance to oxygen and moisture for solution-processed organic light-emitting diodes (OLEDs). We selected polyethyleneimine ethoxylated (PEIE) as the ETL and Cs2CO3, CsF, and tris(8-hydroxyquinolinato)aluminum (Alq3) as n-type dopants. Compared with OLEDs with undoped PEIE as the ETL, the OLEDs with doped PEIE (d-PEIE) showed significantly improved luminance, efficiency, and lifetimes. These improvements are attributed to d-PEIE decreasing the work function of the Al metal cathode, as shown by ultraviolet photoelectron spectroscopy (UPS) analysis, and improving the gas and moisture resistance.
AB - We present solution-processable electron-transport layers (ETL) with highly enhanced electron-injection and electron-transport properties and resistance to oxygen and moisture for solution-processed organic light-emitting diodes (OLEDs). We selected polyethyleneimine ethoxylated (PEIE) as the ETL and Cs2CO3, CsF, and tris(8-hydroxyquinolinato)aluminum (Alq3) as n-type dopants. Compared with OLEDs with undoped PEIE as the ETL, the OLEDs with doped PEIE (d-PEIE) showed significantly improved luminance, efficiency, and lifetimes. These improvements are attributed to d-PEIE decreasing the work function of the Al metal cathode, as shown by ultraviolet photoelectron spectroscopy (UPS) analysis, and improving the gas and moisture resistance.
UR - http://www.scopus.com/inward/record.url?scp=85016122042&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85016122042&partnerID=8YFLogxK
U2 - 10.1039/c7tc00488e
DO - 10.1039/c7tc00488e
M3 - Article
AN - SCOPUS:85016122042
VL - 5
SP - 3097
EP - 3106
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
SN - 2050-7526
IS - 12
ER -