TITLE

Characteristics of unannealed ZnMgO/ZnO p-n junctions on bulk (100) ZnO substrates

AUTHOR(S)
Hyucksoo Yang; Y. Li; Norton, D. P.; Pearton, S. J.; Jung, Soohwan; Ren, F.; Boatner, L. A.
PUB. DATE
April 2005
SOURCE
Applied Physics Letters;4/25/2005, Vol. 86 Issue 17, p172103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Zn0.9Mg0.1O/ZnO p-n junctions were grown by pulsed laser deposition at ≤500 °C on bulk n-type, (100), nonpolar, a-plane ZnO substrates. No postgrowth annealing was performed, with the P-doped ZnMgO showing p-type conductivity (hole density ∼1016 cm-3, mobility ∼6 cm2 V-1 s-1) in the as-grown state. Front-to-back p-n junctions were fabricated with Ni/Au used as the p-Ohmic contact and Ti/Au as the backside n-Ohmic contact. The p contacts showed improved characteristics after annealing up to 400 °C, but the n contacts were Ohmic as deposited. The junctions showed rectifying behavior up to 200 °C. The forward turn-on voltage was ∼6.5 V at 25 °C. The simple, low-temperature growth and processing sequence show the promise of ZnO for applications in transparent electronics and UV light emitters.
ACCESSION #
17227617

 

Related Articles

  • A method for calculation of grain size growth in metallic materials depending on annealing regimes. Protsiv, Yu. // Inorganic Materials;Dec2010, Vol. 46 Issue 15, p1645 

    method for calculation of grain size growth in metallic materials depending on the influence of annealing with different duration and different temperatures is proposed. This method can be used to develop a nomogram for determination of average grain diameter increment in the case of action of...

  • Tuning the ferromagnetic properties of hydrogenated GaMnAs. Thevenard, L.; Largeau, L.; Mauguin, O.; Lemaître, A.; Theys, B. // Applied Physics Letters;10/31/2005, Vol. 87 Issue 18, p182506 

    Hydrogenation and posthydrogenation annealings have been used as a very efficient tool to tune the hole density over a wide range, at fixed magnetic moment concentration, in thin GaMnAs layers. Reduction of the hole density resulted in strong modifications of their ferromagnetic properties. In...

  • Hydrogen-enhanced recrystallization in N+-implanted GaAs. Wang, J.; Li, Z.; Xu, W.; Guo, X.; Cai, W.; Wang, Q.; Chen, X.; Lu, W. // Applied Physics A: Materials Science & Processing;2004, Vol. 79 Issue 7, p1809 

    The hydrogen-enhanced recrystallization during thermal annealing in N+-implanted GaAs has been studied by combinatorial implantation process. Raman spectroscopy was used to study the crystallization properties of a set of hydrogenated cells on the N+-implanted GaAs wafer. A whole competitive...

  • Bilayer metal gate electrodes with tunable work function: Mechanism and proposed model. Lu, Ching-Huang; Wong, Gloria M. T.; Birringer, Ryan; Dauskardt, Reinhold; Deal, Michael D.; Clemens, Bruce M.; Nishi, Yoshio // Journal of Applied Physics;Mar2010, Vol. 107 Issue 6, p063710 

    A bilayer metal structure has been demonstrated to adjust the gate work function over the Si band gap. The underlying tuning mechanism is believed to be due to metal interdiffusion based on comparison of work function behavior under different anneal conditions. In this paper, we conduct physical...

  • The Effect of Annealing on the Structure and Mechanical Properties of Mo - 47.5 Wt. % Re Alloy Sheet. Shields, John A. // AIP Conference Proceedings;2005, Vol. 746 Issue 1, p835 

    The temperature dependence of microstructure, hardness, and room-temperature tensile properties of Mo - 47.5 wt. % Re sheet were measured for sheet thicknesses between 0.51 mm and 3.05 mm. Recrystallization occurred between 1200 C and 1300 C for all thicknesses, even though appreciable drops in...

  • Microstructure, Texture and Mechanical Properties of Mg-0.8 Zn-0.3 Gd-0.5 Ca Alloy Sheets. Cheng-bin Wei; Hong Yan; Cai Chen; Xing-hao Du; Rong-shi Chen // Materials Science Forum;2016, Vol. 852, p171 

    In this study, the microstructure, texture and mechanical properties of rolled Mg-0.8 Zn-0.3 Gd-0.5 Ca sheets have been investigated. It is shown that the as-cast microstructure of the Mg-0.8 Zn-0.3 Gd-0.5 Ca alloy is composed of coarse grains with fine intermetallic particles. The deformed...

  • Fabrication of Mg Alloy Single Crystals Containing Rare Earth Elements and Their Mechanical Behavior. Jungho Moon; Tae Kwon Ha // Materials Science Forum;2014, Vol. 783-786, p380 

    Single crystals of Magnesium alloys such as Mg-1Zn-0.5Y, Mg-0.1Y, and Mg-0.1Ce alloys were fabricated in this study by employing the modified Bridgman method. To determine the exact orientation of crystals, pole figure measurement using X-ray diffraction was carried out on each single crystal....

  • Radiation Damage Formation And Annealing In Mg-Implanted GaN. Whelan, Sean; Kelly, Michael J.; Yan, John; Gwilliam, Russell // AIP Conference Proceedings;2005, Vol. 772 Issue 1, p249 

    We have implanted GaN with Mg ions over an energy range of 200keV to 1MeV at substrate temperatures of -150 (cold) and +300°C (hot). The radiation damage formation in GaN was increased for cold implants when compared to samples implanted at elevated temperatures. The increase in damage...

  • Annealing behavior of 5083 Al alloy deformed at cryogenic temperature. Young Bum Lee; Dong Hyuk Shin; Won Jong Nam // Journal of Materials Science;Feb2005, Vol. 40 Issue 3, p797 

    Investigates the effects of annealing temperature and time on microstructure and mechanical properties of a 5083 aluminum alloy deformed at cryogenic temperature. Results From indicating that mechanical properties of 5083 aluminum alloy deformed at cryogenic temperature and annealed are...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics