طراحی و شبیه‏ سازی عددی سلول‏ های خورشیدی پشت سر هم بر پایة Sb2S3 جهت بهبود عملکرد فوتوولتائیک

دهمرده, زهرا; سعادت, محسن

doi:10.22055/jrmbs.2024.19015

طراحی و شبیه‏ سازی عددی سلول‏ های خورشیدی پشت سر هم بر پایة Sb2S3 جهت بهبود عملکرد فوتوولتائیک

نوع مقاله : مقاله پژوهشی کامل

نویسندگان

گروه فیزیک، دانشکده علوم پایه، دانشگاه سیستان و بلوچستان، زاهدان، ایران

10.22055/jrmbs.2024.19015

چکیده

در این تحقیق سلول‏های خورشیدی پشت سر هم مختلفی طراحی و شبیه‏سازی شده که در آنها زیرسلول بالایی Sb2S3 است. ساختارهای مختلفی شامل Sb2Se3، CISe، CZTSe و GeTe برای زیرسلول پایینی پیشنهاد شد. تطابق جریان در زیرسلول بالا و پایین در سلول‏های پشت سر هم از اهمیت زیادی برخوردار است. برای رسیدن به نقطه تطابق جریان ضخامت لایه‏های زیرسلول پایینی ثابت نگه داشته شد و ضخامت لایه جاذب سلول بالایی تغییرداده شد تا چگالی جریان در هردو زیر سلول یکسان شود. در نقطه تطابق جریان عملکرد سلول بالایی تحت تابش طیف استاندارد AM 1.5G و عملکرد زیرسلول پایینی تحت تابش طیف فیلتر شده مورد ارزیابی قرار گرفت و سپس منحنی مشخصه جریان- ولتاژ سلول پشت سر هم از مجموع منحنی‏های مشخصه دو زیرسلول فرعی به دست آمد. بازدهی به دست آمده برای سلول‏های پشت سرهم Sb2S3/Sb2Se3، Sb2S3/CIS، Sb2S3/CZTSe و Sb2S3/GeTe به ترتیب برابر %10/22، %95/30، %83/24 و %80/36 به دست آمد. هر چه اختلاف گاف انرژی سلول‏های فرعی بیشتر باشد، فوتون‏های بیشتری جمع‏آوری می‏شوند و چگالی جریان بزرگتری برای سلول حاصل می‏شود. بهترین عملکرد هنگامی به دست آمد که از GeTe به عنوان زیرسلول پایینی استفاده شد.

کلیدواژه‌ها

موضوعات

شاخه‌های میان‌رشته‌ای

عنوان مقاله [English]

Exploring a suitable partner for Sb2S3 solar cells for use in tandem solar cells

نویسندگان [English]

Zahra Dahmardeh
Mohsen Saadat

Department of Physics, Faculty of Science, University Sistan and Baluchestan, Zahedan, Iran

چکیده [English]

In this research, different tandem solar cells have been designed and simulated, in which the upper sub-cell is Sb2S3. Different structures including Sb2Se3, CISe, CZTSe and GeTe were proposed for the lower sub-cell.It is very important to match the current in the upper and lower sub-cells in consecutive cells. To reach the current matching point, the thickness of the layers of the lower sub-cell was kept constant and the thickness of the absorbing layer of the upper cell was changed so that the current density in both sub-cells was the same. At the current matching point, the performance of the upper cell under the AM1.5G standard spectrum radiation and the performance of the lower sub-cell under the filtered spectrum radiation were evaluated, and then the current-voltage characteristic curve of the tandem cell was obtained from the sum of the characteristic curves of the two sub-cells. The efficiency obtained for Sb2S3/Sb2Se3, Sb2S3/CIS, Sb2S3/CZTSe and Sb2S3/GeTe tandem cells was 22.10%, 30.95%, 24.83% and 36.80%, respectively. The greater the energy gap difference of the sub-cells, the more photons are collected and the greater current density is obtained for the cell. The best performance was obtained when GeTe was used as the bottom sub-cell.

کلیدواژه‌ها [English]

Tandem solar cells
Sb2S3
Numerical simulation
Filtered spectrum
Current matching technique

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