GaN metal–semiconductor–metal photodetectors grown on lithium gallate substrates by molecular-beam epitaxy

2001 ◽  
Vol 79 (9) ◽  
pp. 1372-1374 ◽  
Author(s):  
S. W. Seo ◽  
K. K. Lee ◽  
Sangbeom Kang ◽  
S. Huang ◽  
William A. Doolittle ◽  
...  
2007 ◽  
Vol 16 (04) ◽  
pp. 497-503 ◽  
Author(s):  
L. S. CHUAH ◽  
Z. HASSAN ◽  
H. ABU HASSAN

High quality unintentionally doped n-type GaN layers were grown on Si (111) substrate using AlN (about 200 nm) as buffer layer by radio frequency (RF) nitrogen plasma-assisted molecular beam epitaxy (MBE). This paper presents the structural and optical studies of porous GaN sample compared to the corresponding as-grown GaN. Metal–semiconductor–metal (MSM) photodiode was fabricated on the samples. For as-grown GaN-based MSM, the detector shows a sharp cut-off wavelength at 362 nm, with a maximum responsivity of 0.254 A/W achieved at 360 nm. For porous GaN MSM detector, a sharp cut-off wavelength at 360 nm with a maximum responsivity of 0.655 A/W was achieved at 359 nm. Both the detectors show a little decrease in responsivity in the UV spectral region. The MSM photodiode based on porous GaN shows enhanced (2×) magnitude of responsivity relative to the as-grown GaN MSM photodiode. Enhancement of responsivity can be attributed to the relaxation of tensile stress and reduction of surface pit density in the porous sample.


2017 ◽  
Vol 110 (22) ◽  
pp. 221107 ◽  
Author(s):  
Anamika Singh Pratiyush ◽  
Sriram Krishnamoorthy ◽  
Swanand Vishnu Solanke ◽  
Zhanbo Xia ◽  
Rangarajan Muralidharan ◽  
...  

1994 ◽  
Vol 64 (23) ◽  
pp. 3151-3153 ◽  
Author(s):  
Bahram Nabet ◽  
Arthur Paolella ◽  
Paul Cooke ◽  
Mary L. Lemuene ◽  
Robert P. Moerkirk ◽  
...  

1991 ◽  
Author(s):  
Boris S. Elman ◽  
Jagannath Chirravuri ◽  
A. N. M. M. Choudhury ◽  
Andrew Silletti ◽  
Andrew J. Negri ◽  
...  

2014 ◽  
Vol 1633 ◽  
pp. 13-18
Author(s):  
G. Medina ◽  
P.A. Stampe ◽  
R.J. Kennedy ◽  
R.J. Reeves ◽  
G.T. Dang ◽  
...  

ABSTRACTWe describe the characteristics of a series of thin film tin oxide films grown by plasma-assisted molecular beam epitaxy on r-plane sapphire substrates over a range of flux and substrate temperature conditions. A mixture of both SnO2 and SnO are detected in several films, with the amount depending on growth conditions, most particularly the substrate temperature. Electrical measurements were not possible on all samples due to roughness related issues with contacting, but at least one film exhibited p-type characteristics depending on measurement conditions, and one sample exhibited significant persistent photoconductivity upon ultraviolet excitation in a metal-semiconductor-metal device structure.


Author(s):  
Ravindra S. Pokharia ◽  
Krista Khiangte ◽  
Jaswant S. Rathore ◽  
Jan Schmidt ◽  
Jörg Osten ◽  
...  

1995 ◽  
Vol 34 (Part 1, No. 2B) ◽  
pp. 1303-1308
Author(s):  
Thomas Kummetz ◽  
Siegfried Dirr ◽  
Markus Sickmöller ◽  
Annegret Herrmann ◽  
Wolfgang Kowalsky

2000 ◽  
Vol 36 (11) ◽  
pp. 1262-1266 ◽  
Author(s):  
S. Wang ◽  
T. Li ◽  
J.M. Reifsnider ◽  
B. Yang ◽  
C. Collins ◽  
...  

Author(s):  
C.B. Carter ◽  
D.M. DeSimone ◽  
T. Griem ◽  
C.E.C. Wood

Molecular-beam epitaxy (MBE) is potentially an extremely valuable tool for growing III-V compounds. The value of the technique results partly from the ease with which controlled layers of precisely determined composition can be grown, and partly from the ability that it provides for growing accurately doped layers.


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