BARIŞ ALTIOKKA^1,* , AYÇA KIYAK YILDIRIM^1,*

Abstract

Thin films of PbS were produced by chemical bath deposition method under alternating magnetic field. A coil was wrapped surrounds the bath container. Two terminal of coil were connected a power supply. The frequencies of the alternating magnetic field were varied of 0, 25 and 50 Hz. Besides, the magnitudes of the magnetic field were determined as to be 0, 3.25 and 6.5 mT. Structural analyses of the films were performed by an X-ray diffractometer. There were two texture coefficients at (111) and (002) planes, greater than 1, of the film obtained without the magnetic field. The magnetic field varied preferred orientation. On the other hand, the films obtained under the magnetic field showed preferred orientation at (111) plane. Crystallite sizes of the samples were calculated by using XRD results. Besides, magnetic field effected crystallite size. Crystallite size of the PbS films obtained without magnetic field was 62 nm and others were average 50 nm. The surface morphologies were investigated by using a scanning electron microscope (SEM). When surface was investigated with 30000 times magnified, pinholes and voids were not seen and sizes of the polymorphic crystal were varied between 200 nm and 1000 nm..

Keywords

PbS, Lead sulfide, Chemical bath deposition, Thin films.

Submitted at: Feb. 25, 2019
Accepted at: Oct. 9, 2019

Citation

BARIŞ ALTIOKKA, AYÇA KIYAK YILDIRIM, Chemical deposition of PbS thin films under alternating magnetic field of 0, 25 and 50 Hz, Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 9-10, pp. 623-628 (2019)

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