TY - JOUR
T1 - Low-frequency noise characteristics of GaN-based UV photodiodes with AlN/GaN buffer layers prepared on Si substrates
AU - Chang, Sheng Po
AU - Chang, Shoou Jinn
AU - Lu, Chien Yuan
AU - Chiou, Yu Zung
AU - Chuang, Ricky W.
AU - Lin, Hung Chieh
N1 - Funding Information:
This work was in part supported by Center for Frontier Materials and Micro/Nano Science and Technology, National Cheng Kung University, Taiwan (D97-2700). This work was also in part supported by the Advanced Optoelectronic Technology Center, National Cheng Kung University, under projects from the Ministry of Education.
PY - 2009/5/1
Y1 - 2009/5/1
N2 - Nitride-based metal-semiconductor-metal ultraviolet (UV) photodetectors prepared on Si (1 1 1) substrate with stacked buffer layers were proposed and prepared. With 5 V applied bias, it was found that dark current of the fabricated device was only 7.95×10-12 A. With an applied bias of 10 V, it was found that peak responsivity was 0.06 A/W, corresponding to quantum efficiency of 21.2% while UV/visible rejection ratio was 244. With 5 V applied bias, it was found that noise equivalent power, NEP and detectivity, D*, of our detector were 1.70×10-13 W and 1.18×1013 cm Hz0.5 W-1, respectively.
AB - Nitride-based metal-semiconductor-metal ultraviolet (UV) photodetectors prepared on Si (1 1 1) substrate with stacked buffer layers were proposed and prepared. With 5 V applied bias, it was found that dark current of the fabricated device was only 7.95×10-12 A. With an applied bias of 10 V, it was found that peak responsivity was 0.06 A/W, corresponding to quantum efficiency of 21.2% while UV/visible rejection ratio was 244. With 5 V applied bias, it was found that noise equivalent power, NEP and detectivity, D*, of our detector were 1.70×10-13 W and 1.18×1013 cm Hz0.5 W-1, respectively.
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U2 - 10.1016/j.jcrysgro.2009.01.044
DO - 10.1016/j.jcrysgro.2009.01.044
M3 - Article
AN - SCOPUS:65949101258
SN - 0022-0248
VL - 311
SP - 3003
EP - 3006
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 10
ER -