Investigation of electron beam detection properties of ZnO nanowire based back-to-back double Schottky diode

RSC Advances ◽  
2014 ◽  
Vol 4 (25) ◽  
pp. 12743 ◽  
Author(s):  
Xin Li ◽  
Junjie Qi ◽  
Qi Zhang ◽  
Zengze Wang ◽  
Shengnan Lu ◽  
...  
Keyword(s):  
Electron Beam ◽  
Schottky Diode ◽  
Zno Nanowire

scholarly journals Electron beam irradiation enhanced varistor properties in ZnO nanowire

2020 ◽  
Vol 117 (2) ◽  
pp. 021903
Author(s):  
Keyan Sheng ◽  
Yanying Li ◽  
Haijun Li ◽  
Zhou Ding ◽  
Taiyan Chen ◽  
...  
Keyword(s):  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Zno Nanowire ◽  
Beam Irradiation

Electrical Contact Tunable Direct Printing Route for a ZnO Nanowire Schottky Diode

Nano Letters ◽  
2010 ◽  
Vol 10 (9) ◽  
pp. 3517-3523 ◽  
Author(s):  
Tae Il Lee ◽  
Won Jin Choi ◽  
Jyoti Prakash Kar ◽  
Youn Hee Kang ◽  
Joo Hee Jeon ◽  
...  
Keyword(s):  
Schottky Diode ◽  
Electrical Contact ◽  
Zno Nanowire ◽  
Direct Printing

Tuning ZnO Nanowire Dissolution by Electron Beam Modification of Surface Wetting Properties

2018 ◽  
Vol 122 (14) ◽  
pp. 8011-8021 ◽  
Author(s):  
Gianluca Milano ◽  
Luca D’Ortenzi ◽  
Katarzyna Bejtka ◽  
Luisa Mandrile ◽  
Andrea M. Giovannozzi ◽  
...  
Keyword(s):  
Electron Beam ◽  
Zno Nanowire ◽  
Surface Wetting ◽  
Wetting Properties

Electron beam modification of the Schottky diode characteristics of diamond

1992 ◽  
Vol 61 (4) ◽  
pp. 429-431 ◽  
Author(s):  
J. W. Glesener ◽  
A. A. Morrish ◽  
K. A. Snail
Keyword(s):  
Electron Beam ◽  
Schottky Diode

scholarly journals Enhanced random lasing from distributed Bragg reflector assisted Au-ZnO nanowire Schottky diode

2016 ◽  
Vol 109 (19) ◽  
pp. 192101 ◽  
Author(s):  
Sunayna B. Bashar ◽  
Mohammad Suja ◽  
Wenhao Shi ◽  
Jianlin Liu
Keyword(s):  
Schottky Diode ◽  
Bragg Reflector ◽  
Random Lasing ◽  
Zno Nanowire ◽  
Distributed Bragg Reflector

Non-classical logic inverter coupling a ZnO nanowire-based Schottky barrier transistor and adjacent Schottky diode

2014 ◽  
Vol 16 (31) ◽  
pp. 16367 ◽  
Author(s):  
Seyed Hossein Hosseini Shokouh ◽  
Syed Raza Ali Raza ◽  
Hee Sung Lee ◽  
Seongil Im
Keyword(s):  
Schottky Barrier ◽  
Schottky Diode ◽  
Classical Logic ◽  
Zno Nanowire

Electron beam-induced current investigation of GaN Schottky diode

2005 ◽  
Vol 34 (7) ◽  
pp. 1059-1064 ◽  
Author(s):  
A. Matoussi ◽  
T. Boufaden ◽  
S. Guermazi ◽  
Y. Mlik ◽  
B. El Jani ◽  
...  
Keyword(s):  
Electron Beam ◽  
Schottky Diode ◽  
Induced Current ◽  
Current Investigation ◽  
Electron Beam Induced Current

scholarly journals ZnO nanowires and their application in field-effect transistors

2021 ◽  
Author(s):  
◽  
Conor Patrick Burke-Govey
Keyword(s):  
Electron Beam ◽  
High Temperature ◽  
Field Dependence ◽  
Threshold Voltage ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Zno Nanowires ◽  
High Temperature Annealing ◽  
Zno Nanowire ◽  
Threshold Voltages

<p>ZnO nanowires have shown great promise as a semiconducting material for a variety of different electronic applications at the nanoscale, and can be easily synthesised at low temperatures using the hydrothermal growth method. However, efforts to reliably produce field-effect transistors (FETs) using ZnO nanowires have been hampered by excessive charge carriers, requiring high temperature annealing (≥400°C) at the expense of the low-temperature synthesis before field dependence is achieved. This thesis presents hydrothermally synthesised ZnO nanowires which can effectively be used as FETs in dry and liquid environments without requiring any annealing or post-growth processing.  The role of polyethylenimine (PEI) in the hydrothermal growth of vertical ZnO nanowires is thoroughly investigated. PEI is a polymer used to increase the aspect ratio of ZnO nanowires, but the molecular weight of the polymer and interactions with other growth precursors are often overlooked. Using 4 mM of PEI(MW = 1300 g/mol) results in hierarchical nanowires, consisting of large primary nanowires which abruptly terminate in thinner secondary nanowires. The secondary nanowires, with lengths of up to 10 m and diameters below 50 nm, are synthesised during a PEI-mediated secondary growth phase, where Zn-PEI complexes continue to provide Zn²⁺ ions after the bulk of the precursors have been exhausted.  The PEI-mediated synthesis of hierarchical nanowires is used to fabricate FETs by laterally growing intersecting networks of nanowires from spaced pairs of ZnO/Ti films, which have been patterned on SiO₂/Si device substrates. All of these FETs show marked field dependence between VG = -10 V to 10 V, despite being used without annealing. Typical on-off ratios are between 10³ - 10⁵, with threshold voltages between -7.5 V to 5 V. This is a significant result, as the majority of ZnO nanowire FETs reported in the literature require high temperature annealing. Persistent photoconductivity measurements indicate that surface states on the nanowires contribute to the intrinsic field dependence of the devices.  Hierarchical nanowires are also synthesised by modular primary and secondary hydrothermal growths. FETs fabricated using these hierarchical nanowires show less field dependence than PEI-mediated hierarchical nanowires, with limited function ality when used in air. The best FET measured in air operates with an on-off ratio of 10⁴ and a threshold voltage of ~ 0 V. Devices which are field-independent in air can be reliably gated by measuring the FETs in a wet environment, using de-ionised water as a dielectric. A back-gated wet FET operates with an on-off ratio of 105 and a threshold voltage of ~ 8 V. Top-gated wet FETs operate with on-off ratios within 103 - 104, and threshold voltages within 0.4 - 0.9 V. These devices also have significantly low subthreshold swings, on the order of 80 mV/decade.  FETs are fabricated by contacting individual ZnO nanowires using electron-beam lithography, although only one vertical ZnO nanowire shows field dependence, with an on-off ratio of 10⁴ and a threshold voltage of -7 V. A PEI-mediated hierarchical nanowire is also contacted and shows field dependence, with an on-off ratio of 10² and a threshold voltage of -6 V. The poor on-off ratio is caused by high leakage currents of the device. The contacted nanowires undergo dissolution over time, disappearing from the substrates after 8 months, and also exhibit a conducting-to-insulating transition over 48 hours. This transition can be temporarily reversed by exposure to an electron beam. Neither of these effects are reported in the literature, and their causes are speculated on.  Finally, the thesis concludes with proposals for future work to further the advances made here.</p>

ZnO nanowire-embedded Schottky diode for effective UV detection by the barrier reduction effect

2010 ◽  
Vol 21 (11) ◽  
pp. 115205 ◽  
Author(s):  
Joondong Kim ◽  
Ju-Hyung Yun ◽  
Chang Hyun Kim ◽  
Yun Chang Park ◽  
Ju Yeon Woo ◽  
...  
Keyword(s):  
Schottky Diode ◽  
Uv Detection ◽  
Zno Nanowire ◽  
Reduction Effect
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