| 학회 |
한국재료학회 |
| 학술대회 |
2010년 가을 (11/11 ~ 11/12, 무주리조트) |
| 권호 |
16권 2호 |
| 발표분야 |
F. Display and optic Materials and processing(디스플레이 및 광 재료) |
| 제목 |
Electrochemical Potentiostatic Activation and Its Application for Enhancing Blue LED Efficiency |
| 초록 |
A novel electrochemical potentiostatic activation method was examined in order to enhance the hole concentration of p-type GaN epitaxial layer. The hole concentration was more than doubled with a mobility of 9~11 cm2/V•s after an electric voltage was applied. At an optimal applied voltage of 3 V, the hole concentration was enhanced about 2.4 times from 1.9x1017 cm-3 to 4.5x1017 cm-3. The p-GaN films dissolved in the KOH solution at high applied voltages above 9 V. The secondary ion mass spectrometry analysis indicated that nearly 70% of the hydrogen atoms were removed by this activation method. |
| 저자 |
KIM Bongjun, Kim Hakjun, Lee Junekey
|
| 소속 |
Chonnam Univ. |
| 키워드 |
Activation; p-GaN; electrochemical
|
| E-Mail |
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