Abstract
In summary, we have systematically investigated size dependent light output, spectra shift in 520 nm InGaN based-uLEDs. Our experimental results confirm that smaller uLEDs can deliver higher power densities and sustain higher current densities. Current density dependence of the EL properties of different-size uLEDs exhibited that the spectral shift was dependent on not only current density but also chip size. The band-combined effects of filling effect and self-heating-induced bandgap shrinkage are responsible for the complicated phenomenon.
| Original language | English |
|---|---|
| Title of host publication | ECS Transactions |
| Publisher | Electrochemical Society Inc. |
| Pages | 13-18 |
| Number of pages | 6 |
| Volume | 85 |
| Edition | 7 |
| ISBN (Electronic) | 9781607685395 |
| Publication status | Published - 2018 Jan 1 |
| Event | Symposium on Wide Bandgap Semiconductor Materials and Devices 19 - 233rd ECS Meeting - Seattle, United States Duration: 2018 May 13 → 2018 May 17 |
Other
| Other | Symposium on Wide Bandgap Semiconductor Materials and Devices 19 - 233rd ECS Meeting |
|---|---|
| Country | United States |
| City | Seattle |
| Period | 18/5/13 → 18/5/17 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs. / Kim, Dae Hyun; Seong, Tae Yeon.
ECS Transactions. Vol. 85 7. ed. Electrochemical Society Inc., 2018. p. 13-18.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs
AU - Kim, Dae Hyun
AU - Seong, Tae Yeon
PY - 2018/1/1
Y1 - 2018/1/1
N2 - In summary, we have systematically investigated size dependent light output, spectra shift in 520 nm InGaN based-uLEDs. Our experimental results confirm that smaller uLEDs can deliver higher power densities and sustain higher current densities. Current density dependence of the EL properties of different-size uLEDs exhibited that the spectral shift was dependent on not only current density but also chip size. The band-combined effects of filling effect and self-heating-induced bandgap shrinkage are responsible for the complicated phenomenon.
AB - In summary, we have systematically investigated size dependent light output, spectra shift in 520 nm InGaN based-uLEDs. Our experimental results confirm that smaller uLEDs can deliver higher power densities and sustain higher current densities. Current density dependence of the EL properties of different-size uLEDs exhibited that the spectral shift was dependent on not only current density but also chip size. The band-combined effects of filling effect and self-heating-induced bandgap shrinkage are responsible for the complicated phenomenon.
UR - http://www.scopus.com/inward/record.url?scp=85050206398&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85050206398&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85050206398
VL - 85
SP - 13
EP - 18
BT - ECS Transactions
PB - Electrochemical Society Inc.
ER -