A New Single Source Precursor Approach to Gallium and Aluminum Nitride

1995 ◽  
Vol 395 ◽  
Author(s):  
Deborah A. Neumayer ◽  
C.J. Carmalt ◽  
M.F. Arendt ◽  
J.M. White ◽  
A.H. Cowley ◽  
...  

ABSTRACTSingle source precursors which contain preformed gallium-nitrogen and aluminum-nitrogen bonds are being considered for the growth of gallium and aluminum nitride because of their potential for overcoming problems associated with conventional precursors. Presented is the evaluation of dimethylgallium azide, Me2GaN3(1), bisdimethylamidogallium azide, (Me2N)2GaN3(2), and bisdimethylamidoaluminum azide, (Me2N)2AlN3(3) as potential precursors for A1N and GaN film growth. The compounds were evaluated for stability, ease of transport, temperature of decomposition and quality of film deposited. Amorphous thin films of GaN with a band gap of 3.4 eV were deposited with 2 at 250 °C. Increasing the substrate temperature to 580 °C resulted in the deposition of epitaxial GaN films. Polycrystalline A1N films were grown with 3 at 600 °C.

ChemInform ◽  
2003 ◽  
Vol 34 (9) ◽  
Author(s):  
Oh-Shim Joo ◽  
Kwang-Deog Jung ◽  
Sung-Hoon Cho ◽  
Je-Hong Kyoung ◽  
Chang-Kyu Ahn ◽  
...  

2002 ◽  
Vol 8 (6) ◽  
pp. 273-276 ◽  
Author(s):  
O.-S. Joo ◽  
K.-D. Jung ◽  
S.-H. Cho ◽  
J.-H. Kyoung ◽  
C.-K. Ahn ◽  
...  

2019 ◽  
Vol 43 (4) ◽  
pp. 1900-1909 ◽  
Author(s):  
Himanshi Chaurasia ◽  
Santosh K. Tripathi ◽  
Kamlesh Bilgaiyan ◽  
Akhilesh Pandey ◽  
K. Mukhopadhyay ◽  
...  

The precursor hexa urea aluminate(iii) was pyrolysed at various temperature (800 °C to 1000 °C) and pressure (100 Torr to 1 Torr) under inert atmosphere to study the effect of temperature, pressure and inert gases for the conversion of precursor to AlN material/thin films.


1999 ◽  
Vol 595 ◽  
Author(s):  
R. A. Fischer ◽  
A. Wohlfart ◽  
A. Devi ◽  
W. Rogge

AbstractWe report the growth kinetics of GaN thin films using the single source precursor bisazido dimethylaminopropyl gallium (BAZIGA) in a cold wall reactor. Transparent, smooth, epitaxial (FWHM of the αGaN 0002 rocking curve = 129.6 arcsec) and stoichiometric GaN films were grown on c-plane Al2O3 substrates in the temperature range of 870 – 1320K and high growth rates were obtained (up to 4000 nm/hr). Film growth was studied as a function of substrate temperature as well as reactor pressure. Although high quality films were obtained without using any additional source of nitrogen such as ammonia, we have investigated the effect of ammonia on the growth and properties of the resulting films. The films obtained were characterized by XRD, RBS, XPS, AES, AFM, SEM and the room temperature PL spectroscopy of GaN films grown exhibited the correct near band edge luminescence at 3.45 eV.


2000 ◽  
Vol 5 (S1) ◽  
pp. 152-158
Author(s):  
R. A. Fischer ◽  
A. Wohlfart ◽  
A. Devi ◽  
W. Rogge

We report the growth kinetics of GaN thin films using the single source precursor bisazido dimethylaminopropyl gallium (BAZIGA) in a cold wall reactor. Transparent, smooth, epitaxial (FWHM of the α-GaN 0002 rocking curve = 129.6 arcsec) and stoichiometric GaN films were grown on c-plane Al2O3 substrates in the temperature range of 870 – 1320K and high growth rates were obtained (up to 4000 nm/hr). Film growth was studied as a function of substrate temperature as well as reactor pressure. Although high quality films were obtained without using any additional source of nitrogen such as ammonia, we have investigated the effect of ammonia on the growth and properties of the resulting films. The films obtained were characterized by XRD, RBS, XPS, AES, AFM, SEM and the room temperature PL spectroscopy of GaN films grown exhibited the correct near band edge luminescence at 3.45 eV.


2015 ◽  
Vol 833 ◽  
pp. 127-133
Author(s):  
Jie Yu ◽  
Jie Xing ◽  
Xiu Hua Chen ◽  
Wen Hui Ma ◽  
Rui Li ◽  
...  

La0.9Sr0.1Ga0.8Mg0.2O3-δ (LSGM) electrolyte thin films were fabricated on La0.7Sr0.3Cr0.5Mn0.5O2.75 (LSCM) porous anode substrates by Radio Frequency (RF) magnetron sputtering method. The compatibility between LSGM and LSCM was examined. Microstructures of LSGM thin films fabricated were observed by scanning electron microscope (SEM). The effect of substrate temperature on LSGM thin films was clarified by X-ray Diffraction (XRD). Deposition rate increases firstly at the range of 50°C~150°C, and then decreases at the range of 150°C ~300°C. After annealing, perovskite structure with the same growth orientation forms at different substrate temperature. Crystallite size decreases at first, to the minimum point at 150°C, then increases as substrate temperature rises.


2007 ◽  
Vol 201 (22-23) ◽  
pp. 9154-9158 ◽  
Author(s):  
M. Lemberger ◽  
S. Thiemann ◽  
A. Baunemann ◽  
H. Parala ◽  
R.A. Fischer ◽  
...  

2002 ◽  
Vol 197-198 ◽  
pp. 348-351 ◽  
Author(s):  
W.D Song ◽  
M.H Hong ◽  
Y.F Lu ◽  
W.J Wang ◽  
S.M Huang ◽  
...  

1994 ◽  
Vol 361 ◽  
Author(s):  
William Jo ◽  
T.W. Noh

ABSTRACTUsing pulsed laser deposition, Bi4Ti3O12 thin films were grown on (0001) and (1102) surfaces of Al2O3. Substrate temperature from 700 to 800 °C and oxygen pressure from 50 to 1000 mtorr were varied, and their effects on Bi4Ti3O12 film growth behavior was investigated. Only for a narrow range of deposition parameters, can highly oriented Bi4Ti3O12(104) films be grown on Al2O3(0001). Further, epitaxial BTO(004) films can be grown on Al2O3(1102). The growth behavior of preferential BTO film orientations can be explained in terms of atomic arrangements in the Bi4Ti3O12 and the Al2O3 planes.


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