05 خرداد 1403
نادر احمدوند

نادر احمدوند

مرتبه علمی: استادیار
نشانی: ملایر ,دانشگاه ملایر ، دانشکده علوم پایه
تحصیلات: دکترای تخصصی / فیزیک گرایش ماده چگال
تلفن: 81-32456518
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان
Engineering 2D semiconductors of PbI2@NdI2 and NdI2@CuI with respect of photovoltaic and solar cell applications
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Copper Iodide, Lead Iodide, Neodymium (II) iodide, Photovoltaic, Solar cell
سال
2022
مجله Surfaces and Interfaces
پژوهشگران نادر احمدوند ، ابراهیم محمدی منش

چکیده

In this study, given the high capability and potential of PbI2, CuI halide semiconductors and NdI2 in new technologies, PbI2@NdI2 and NdI2@CuI nanostructures were introduced and their electro-optical properties were investigated by density functional theory calculations. The results showed that the morphology of PbI2@NdI2 and NdI2@CuI appropriate for stable synthesize and strength structures. Both compounds have the majority carrier densities of hole and the charge carriers density of PbI2@NdI2 was higher than that of NdI2@CuI. Investigation calculation on optical properties showed that the optical behavior of the two structures is favorable at UV and IR wavelengths. However, light absorption of NdI2@CuI in the visible region is higher than PbI2@NdI2 and in the UV region is less than PbI2@NdI2. Also, the optical gap of PbI2@NdI2 and NdI2@CuI was calculated at 2 eV and 1.3 eV, respectively. The static dielectric constant of PbI2@NdI2 and NdI2@CuI were obtained at 1.05 and 0.95, respectively. Therefore, calculation studies show that PbI2@NdI2 and NdI2@CuI nanostructures can improve the efficiency of photovoltaic solar cells by increasing the absorption of the solar spectrum. Also, PbI2@NdI2 has lower structural losses at different wavelengths and can be a good combination for making high power laser filters.