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Low dark current GaN Schottky UV photodiodes using oxidised IrNi Schottky contact.
- Source :
- Electronics Letters (Institution of Engineering & Technology); 10/30/2003, Vol. 39 Issue 22, p1604-1606, 3p
- Publication Year :
- 2003
-
Abstract
- Ir/Ni/Ir metallisation was employed as Schottky contacts of GaN Schottky photodiodes. After annealing at 500°C in O[SUB2] for 1 min, the Schottky contact achieved the maximum barrier height of 1.28 eV and the minimum dark current densities of 1.8×10[SUB-10] A/cm[SUP2] at -5 V bias. The peak responsivity is 105 mA/W at zero bias and increases to 150 mA/W at -15 V bias. The detectivity was estimated as 5.8×10[SUP15] cmHz[SUP1/2] W[SUP-1] at zero bias. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00135194
- Volume :
- 39
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- Electronics Letters (Institution of Engineering & Technology)
- Publication Type :
- Academic Journal
- Accession number :
- 11261688
- Full Text :
- https://doi.org/10.1049/el:20031039