捷克先令
锌黄锡矿
材料科学
薄膜
微晶
太阳能电池
兴奋剂
带隙
结晶度
锂(药物)
锡
分析化学(期刊)
化学工程
光电子学
纳米技术
复合材料
冶金
化学
医学
色谱法
内分泌学
工程类
作者
M. Chand,Shariful Islam,Mohammad Tanvir Ahmed,Muhammad Shahriar Bashar,Farid Ahmed
出处
期刊:AIP Advances
[American Institute of Physics]
日期:2023-12-01
卷期号:13 (12)
被引量:2
摘要
The non-toxic nature and remarkable optoelectronic properties of kesterite (Cu2ZnSnS4 and CZTS) make CZTS a potential candidate for solar cell absorber layer material. Since alkali metal doping has shown a performance boost of active layers of solar cells, this work investigates the effects of significant lithium doping on sol-gel-produced CZTS thin films. CZTS- and lithium (Li)-doped CZTS thin films were prepared using the spin coating technique. The variation of structural, morphological, and optical properties of CZTS due to Li-doping has been studied by x-ray diffraction, scanning electron microscopy, and UV–visible spectroscopy techniques. All the synthesized LixCu2−xZnSnS4 (x = 0, 0.2, 0.4, 0.6) films showed fine crystallinity with average crystallite sizes of 4.745, 6.013, 6.255, and 6.404 nm, respectively. The average grain size decreases from 0.336 to 0.310 µm via increasing Li concentration. The inclusion of Li increased the bandgap energy ranges from 1.5 to 1.808 eV. The Li0.6Cu1.4ZnSnS4 thin showed the highest absorption coefficient of 3.505 × 104 cm−1 among all the prepared thin films. A high optical conductivity over 1014 s−1 was observed for CZTS, which further increased with an increased Li concentration. The synthesized structures showed enhanced characteristics suitable for solar cell application.
科研通智能强力驱动
Strongly Powered by AbleSci AI