Abstract
Ag nanowires (Ag NWs) were combined with a thin indium tin oxide (ITO) film as the p-type electrode in near ultraviolet (NUV) AlGaN-based light-emitting diodes (LEDs) to improve the light output power. The Ag NWs (30 ± 5 nm in diameter and 25 ± 5 μm long) were dispersed in ethanol (0.3 wt%). The transmittances of 10 nm-thick ITO, ITO/Ag NWs coated at 1000 rpm, and ITO/Ag NWs coated at 3000 rpm were 98%, 90%, and 97% at 385 nm, respectively. LEDs (chip size: 300 × 800 μm2) fabricated with the ITO/Ag NW electrode exhibited higher forward-bias voltages than the LEDs with the ITO-only electrode. However, LEDs with ITO/Ag NWs films coated at 1000 and 3000 rpm yielded 7.9 and 14.0% higher light output power, respectively, at 100 mA than the LED with ITO-only electrode. The improved output power with the ITO/Ag NWs films is attributed to an optimal trade-off between optical transmittance and current spreading.
| Original language | English |
|---|---|
| Pages (from-to) | 545-548 |
| Number of pages | 4 |
| Journal | Current Applied Physics |
| Volume | 16 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2016 May 1 |
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Keywords
- Current spreading
- Near ultraviolet light-emitting diodes
- Silver nanowires
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
Cite this
Hybrid indium tin oxide/Ag nanowire electrodes for improving the light output power of near ultraviolet AlGaN-based light-emitting diode. / Park, Jae Seong; Kim, Jae Ho; Kim, Jun Yong; Kim, Dae Hyun; Kang, Daesung; Sung, Jun Suk; Seong, Tae Yeon.
In: Current Applied Physics, Vol. 16, No. 5, 01.05.2016, p. 545-548.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hybrid indium tin oxide/Ag nanowire electrodes for improving the light output power of near ultraviolet AlGaN-based light-emitting diode
AU - Park, Jae Seong
AU - Kim, Jae Ho
AU - Kim, Jun Yong
AU - Kim, Dae Hyun
AU - Kang, Daesung
AU - Sung, Jun Suk
AU - Seong, Tae Yeon
PY - 2016/5/1
Y1 - 2016/5/1
N2 - Ag nanowires (Ag NWs) were combined with a thin indium tin oxide (ITO) film as the p-type electrode in near ultraviolet (NUV) AlGaN-based light-emitting diodes (LEDs) to improve the light output power. The Ag NWs (30 ± 5 nm in diameter and 25 ± 5 μm long) were dispersed in ethanol (0.3 wt%). The transmittances of 10 nm-thick ITO, ITO/Ag NWs coated at 1000 rpm, and ITO/Ag NWs coated at 3000 rpm were 98%, 90%, and 97% at 385 nm, respectively. LEDs (chip size: 300 × 800 μm2) fabricated with the ITO/Ag NW electrode exhibited higher forward-bias voltages than the LEDs with the ITO-only electrode. However, LEDs with ITO/Ag NWs films coated at 1000 and 3000 rpm yielded 7.9 and 14.0% higher light output power, respectively, at 100 mA than the LED with ITO-only electrode. The improved output power with the ITO/Ag NWs films is attributed to an optimal trade-off between optical transmittance and current spreading.
AB - Ag nanowires (Ag NWs) were combined with a thin indium tin oxide (ITO) film as the p-type electrode in near ultraviolet (NUV) AlGaN-based light-emitting diodes (LEDs) to improve the light output power. The Ag NWs (30 ± 5 nm in diameter and 25 ± 5 μm long) were dispersed in ethanol (0.3 wt%). The transmittances of 10 nm-thick ITO, ITO/Ag NWs coated at 1000 rpm, and ITO/Ag NWs coated at 3000 rpm were 98%, 90%, and 97% at 385 nm, respectively. LEDs (chip size: 300 × 800 μm2) fabricated with the ITO/Ag NW electrode exhibited higher forward-bias voltages than the LEDs with the ITO-only electrode. However, LEDs with ITO/Ag NWs films coated at 1000 and 3000 rpm yielded 7.9 and 14.0% higher light output power, respectively, at 100 mA than the LED with ITO-only electrode. The improved output power with the ITO/Ag NWs films is attributed to an optimal trade-off between optical transmittance and current spreading.
KW - Current spreading
KW - Near ultraviolet light-emitting diodes
KW - Silver nanowires
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UR - http://www.scopus.com/inward/citedby.url?scp=84960889446&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2016.03.004
DO - 10.1016/j.cap.2016.03.004
M3 - Article
AN - SCOPUS:84960889446
VL - 16
SP - 545
EP - 548
JO - Current Applied Physics
JF - Current Applied Physics
SN - 1567-1739
IS - 5
ER -