Optical, electrical, and photovoltaic properties of PbS thin films by anionic and cationic dopants

被引：33
|
作者：
Cheraghizade, Mohsen [1 ]
Jamali-Sheini, Farid [2 ]
Yousefi, Ramin [3 ]
机构：
[1] Islamic Azad Univ, Young Researchers & Elite Club, Ahvaz Branch, Ahvaz, Iran
[2] Islamic Azad Univ, Adv Surface Engn & Nano Mat Res Ctr, Ahvaz Branch, Dept Phys, Ahvaz, Iran
[3] Islamic Azad Univ, Dept Phys, Masjed Soleiman Branch, Masjed Soleiman, Iran
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2017年 / 123卷 / 06期
关键词：
SOLAR-CELL; LARGE-SCALE; NANOPARTICLES; FABRICATION; NANOWIRES; STRATEGY; NANORODS; BEHAVIOR; GROWTH; SB;
D O I：
10.1007/s00339-017-0932-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Lead sulfide (PbS) thin films were deposited by CVD method to examine the effects of anionic and cationic dopants on optical and electrical properties for photovoltaic applications. XRD diffractograms verified the formation of cubic phase of multicrystalline PbS thin films. FESEM images showed surface morphologies in nano-dimensions (rods and flowers). UV-Vis-NIR spectrum revealed absorbance in the visible and NIR regions for all samples, in which dopants decreased the intensity of absorbance. Se as an anionic dopant for PbS thin films increased electrical resistance, acceptor concentrations, and crystallite defects, and decreased flat-band voltage and depletion width. Finally, photovoltaic measurements indicated that Zn-doped PbS thin film, as a photovoltaic cell, exhibited higher conversion efficiency and external quantum efficiency (EQE).
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页数：9
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