Title :
Growth and optical properties of La0.7Sr0.3MnO3/ZnO heterojunctions
Author :
Ray, Ayan ; Panda, Debashis ; Rakshit, Tamita ; Mandal, Sanjay K. ; Manna, Indranil ; Ray, Samit K.
Author_Institution :
Dept. of Phys. & Meteorol., Indian Inst. of Technol., Kharagpur, India
Abstract :
LSMO/ZnO p-n hetero-junctions have been fabricated by pulsed laser deposition on p-Si (100) substrates. Grazing incidence XRD, FESEM, AFM, electrical I-V and photoluminescence study have been carried out to investigate the structural, film thickness, topographical, rectifying, photo-response and photoluminescence properties of the structures. The LSMO/ZnO junction, exhibits rectifying behavior for the heterojunction, shows an photocarrier injection effect illustrating the control over transport properties of LSMO in which electron injection decreases hole concentration following the photoexcitation of ZnO.
Keywords :
lanthanum compounds; optical properties; p-n heterojunctions; zinc compounds; AFM; FESEM; XRD; growth; heterojunctions; optical properties; photoluminescence; Charge carrier processes; Heterojunctions; Nonlinear optics; Optical films; Optical pulses; Photoluminescence; Pulsed laser deposition; Substrates; X-ray scattering; Zinc oxide; LSMO/ZnO; heterojunction; photoluminescence; photosensor;
Conference_Titel :
Electron Devices and Semiconductor Technology, 2009. IEDST '09. 2nd International Workshop on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4244-3831-0
Electronic_ISBN :
978-1-4244-3832-7
DOI :
10.1109/EDST.2009.5166115
