We demonstrate that the GaAs/AlGaAs nanowires (NWs) ensemble is fabricated into photo-detectors. Current-voltage (I-V) characteristics are measured on GaAs/AlGaAs core-shell ensemble NW photo-detectors at room-temperature before and after 1-MeV proton irradiation with fluences from 1.0×1013 cm-2 to 5.0×1014 cm-2. The degradation of photocurrent suggests that the point defects induced by proton radiation could cause both carrier lifetime and carrier mobility to decrease synchronously. Comparing with a GaAs quantum well, the degradations of light and dark current for the irradiated NWs photo-detector indicate that NWs material is a preferable potential candidate for space applications.
Kato T, Susawa H, Hirotani M, Saka T, Ohashi Y, Shichi E and Shibata S 1991 J. Cryst. Growth 107 832
[2]
Stettner T, Zimmermann P, Loitsch B, Doblinger M, Regler A, Mayer B, Winnerl J, Matich S, Riedl H, Kaniber M, Abstreiter G, Koblmuller G and Finley J J 2016 Appl. Phys. Lett. 108 5
[3]
Wei W, Liu Y G, Zhang X, Wang Z and Ren X M 2014 Appl. Phys. Lett. 104 4
[4]
Badada B H, Shi T, Jackson H E, Smith L M, Zheng C L, Etheridge J, Gao Q, Tan H H and Jagadish C 2015 Nano Lett. 15 7847
[5]
Aberg I, Vescovi G, Asoli D, Naseem U, Gilboy J P, Sundvall C, Dahlgren A, Svensson K E, Anttu N, Bjork M T and Samuelson L 2016 IEEE J. Photovolt. 6 185
[6]
Seyedi M A, Yao M, O'Brien J, Wang S Y and Dapkus P D 2013 Appl. Phys. Lett. 103 4
[7]
Seyedi M A, Yao M, O'Brien J, Wang S Y and Dapkus P D 2014 Appl. Phys. Lett. 105 3
[8]
Yamaguchi M 2001 Solar Energy Mater. Solar Cells 68 31
[9]
Mitchell B, Trupke T, Weber J W and Nyhus J 2011 J. Appl. Phys. 109 12
[10]
Marcinkevicius S, Leon R, Cechavicius B, Siegert J, Lobo C, Magness B and Taylor W 2002 Physica B 314 203
[11]
Ma L Y, Li Y D, Guo Q, Ai E K, Wang H J, Wang B and Zeng J Z 2015 Acta Phys. Sin. 64 154217 (in Chinese)
[12]
Zhou Y P, Li F J, Che C, Tan L Y, Ran Q W, Yu S Y and Ma J 2014 Acta Phys. Sin. 63 148501 (in Chinese)
[13]
Li F J, Tan L Y and Zhou Y P 2014 Appl. Mech. Mater. 556-562 5163
[14]
Andrievski R A 2014 Uspekhi Fizicheskikh Nauk 184 1017
[15]
Shen T 2008 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 266 921
[16]
Tan H, Williams J, Jagadish C, Burke P and Gal M 1996 Appl. Phys. Lett. 68 2401
[17]
Tan H H and Jagadish C 1997 Appl. Phys. Lett. 71 2680
[18]
Fu L, Tan H H, Johnston M B, Gal M and Jagadish C 1999 J. Appl. Phys. 85 6786
[19]
Joyce H J, Parkinson P, Jiang N, Docherty C J, Gao Q, Tan H H, Jagadish C, Herz L M and Johnston M B 2014 Nano Lett. 14 5989
[20]
Jiang N, Gao Q, Parkinson P, Wong-Leung J, Mokkapati S, Breuer S, Tan H, Zheng C, Etheridge J and Jagadish C 2013 Nano Lett. 13 5135
[21]
Fajun Li, Ziyuan Li, Liying Tan, Yanping Zhou, Jing Ma, Lysevych Mykhaylo, Lan Fu, Hark Hoe Tan and Jagadish C 2017 Nanotechnology 28 125702
[22]
Levine B 1993 J. Appl. Phys. 74 R1
[23]
Claeys C and Simoen E 2013 Radiation effects in advanced semiconductor materials and devices (New York: Springer Science & Business Media 33)
[24]
Pease R L, Enlow E W, Dinger G L and Marshall P 1987 IEEE Trans. Nucl. Sci. 34 1140
[25]
Parenteau M, Carlone C, Morris D and Khanna S M 1997 IEEE Trans. Nucl. Sci. 44 1849
[26]
Khanna S, Liu H, Wilson P, Li L and Buchanan M 1996 IEEE Trans. Nucl. Sci. 43 3012
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