Improvement of laser molecular beam epitaxy grown SrTiO3 thin film properties by temperature gradient modulation growth

2007 ◽  
Vol 91 (13) ◽  
pp. 131902 ◽  
Author(s):  
Jin Long Li ◽  
J. H. Hao ◽  
Y. R. Li
2017 ◽  
Vol 10 (04) ◽  
pp. 1750036 ◽  
Author(s):  
Yunxia Zhou ◽  
Jun Zhu ◽  
Xingpeng Liu ◽  
Zhipeng Wu

Ferroelectric Pb(Zr[Formula: see text],Ti[Formula: see text]O3(PZT) thin film was grown on [Formula: see text]-type GaAs (001) substrate with SrTiO3 (STO) buffer layer by laser molecular beam epitaxy (L-MBE). The epitaxial process of the STO was in situ monitored by reflection high-energy electron diffraction (RHEED). The crystallographical growth orientation relationship was revealed to be (002) [Formula: see text] PZT//(002) [Formula: see text] STO//(001) [Formula: see text] GaAs by RHEED and X-ray diffraction (XRD). It was found that a small lattice mismatch between PZT and GaAs with a 45[Formula: see text] in-plane rotation relationship can be formed by inserting of a buffer layer STO. Besides, the enhanced electrical properties of the heterostructure were obtained with the short-circuit photocurrent increased to 52[Formula: see text]mA/cm2 and the better power conversation efficiency increased by 20% under AM1.5[Formula: see text]G (100[Formula: see text]mW/cm[Formula: see text] illumination. The work could provide a way for the application of this kind of heterostructure with high photocurrent response in optoelectronic thin film devices.


2007 ◽  
Vol 90 (1) ◽  
pp. 012902 ◽  
Author(s):  
X. Y. Zhou ◽  
J. Miao ◽  
J. Y. Dai ◽  
H. L. W. Chan ◽  
C. L. Choy ◽  
...  

2001 ◽  
Vol 227-228 ◽  
pp. 950-954
Author(s):  
Fan Chen ◽  
Huibin Lu ◽  
Tong Zhao ◽  
Zhenghao Chen ◽  
Guozhen Yang

2002 ◽  
Vol 82 (7) ◽  
pp. 1331-1343 ◽  
Author(s):  
X. L. Ma ◽  
Y. L. Zhu ◽  
X. M. Meng ◽  
H. B. Lu ◽  
F. Chen ◽  
...  

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