RF magnetron sputtering technique was employed to fabricate gallium zinc oxide ((Ga)ZnO) semiconductor thin film transistor (TFT) at 100°C. X-ray diffraction and Scanning electron microscopy were used to identify the structure and morphology of (Ga)ZnO layer. Self-heating effect was very much reduced when compared with output characteristics of a TFT fabricated using undoped zinc oxide. The low deposition and processing temperatures make (Ga)ZnO-TFTs very promising for the flexible electronics.
VidorF-F, MeyersT, WirthG-I, ZnO nanoparticle thin-film transistors on the flexible substrate using a spray-coating technique. Microelectron Eng. 2016;159:155–158. doi: 10.1016/j.mee.2016.02.059
2.
PurohitA, ChanderS, SharmaA, The impact of low-temperature annealing on structural, optical, electrical and morphological properties of ZnO thin films grown by RF sputtering for photovoltaic applications. Opt Mater. 2015;49:51–58. doi: 10.1016/j.optmat.2015.08.021
3.
QinW, LiT, LiY, A high power ZnO thin film piezoelectric generator. Appl Surf Sci. 2016;364:670–675. doi: 10.1016/j.apsusc.2015.12.178
4.
BergerD, De MouraAP, OliveiraLH, Improved photoluminescence emission and gas sensor properties of ZnO thin films. Ceram Inter. 2016;42:13555–13561. doi: 10.1016/j.ceramint.2016.05.148
5.
TianC-S, ChenA-L, NiJ, Transparent conductive Mg and Ga co-doped ZnO thin films for solar cells grown by magnetron sputtering: H2 induced changes. Sol Energ Mater Sol C. 2014;125:59–65. doi: 10.1016/j.solmat.2014.02.028
6.
LeeMH, ChangKH, LinHC. Effective density-of-states distribution of polycrystalline silicon thin-film transistors under hot carrier degradation. J Appl Phys. 2007;102:054508. doi: 10.1063/1.2777804
7.
WengC-F, ChangT-C, HsiehH-P, Self-heating effect induced NBTI degradation in poly-Si TFTs under dynamic stress. J Electrochem Soc. 2008;155:H967–H970. doi: 10.1149/1.2990726
8.
Amutha SurabiM., ChandradassJ, ParkS-J. Fabrication and characterization of low-temperature ZnO based thin film transistor using radio frequency (rf) magnetron sputtering. Mater Manuf Process. 2015;30:175–178. doi: 10.1080/10426914.2014.892973
9.
TerasakoT, NomotoJ, MakinoH, Effects of oxygen gas flow rates and Ga contents on structural properties of Ga-doped ZnO films prepared by ion-plating with a DC arc discharge. Thin Solid Films. 2015;596:24–28. doi: 10.1016/j.tsf.2015.08.056
10.
ModitsweC, MuivaCM, JumaA. Highly conductive and transparent Ga-doped ZnO thin films deposited by chemical spray pyrolysis. Optik. 2016;127:8317–8325. doi: 10.1016/j.ijleo.2016.06.033
11.
YilmazM. Investigation of characteristics of ZnO: Ga nanocrystalline thin films with varying dopant content. Mater Sci Semicond Process. 2015;40:99–106. doi: 10.1016/j.mssp.2015.06.031
12.
AhnK-J, LeeS, KimW-J, Characteristics of Ga-doped ZnO films deposited by pulsed DC magnetron sputtering at low temperature. Mater Sci Semicond Process. 2013;16:1957–1963. doi: 10.1016/j.mssp.2013.07.026
13.
JeonH, VermaVP, HwangS, Characteristics of gallium-doped zinc oxide thin-film transistors fabricated at room temperature using radio frequency magnetron sputtering method. JPN J Appl Phys. 2008;47(1):87–90. doi: 10.1143/JJAP.47.87
14.
YuX, MaJ, JiF, Effects of sputtering power on the properties of ZnO:Ga films deposited by r.f. Magnetron-Sputtering at low temperature. J Cryst Growth. 2005;274:474–479. doi: 10.1016/j.jcrysgro.2004.10.037
15.
KimS, LeeW-I, LeeEl-H, Dependence of the resistivity and the transmittance of sputter deposited Ga-doped GaZnO films on oxygen partial pressure and sputtering temperature. J Mater Sci. 2007;42:4845–4849. doi: 10.1007/s10853-006-0738-8
16.
Van der DriftA. Evolutionary selection, A principle governing, growth orientation in vapor deposited layers. Philips Res Rep. 1967;22:267–288.
KwonY, LiY, HeoYW, Enhancement mode thin film field effect transistor using phosphorous doped (Zn, Mg)O channel. Appl Phys Lett. 2004;84:2685–2687. doi: 10.1063/1.1695437
19.
FortunatoEMC, BarquinhaPMC, PrimentelAC, Wide-band gap high-mobility ZnO thin-film transistors produced at room temperature. Appl Phys Lett. 2004;85:2541–2543. doi: 10.1063/1.1790587