نوع مقاله : پژوهشی

نویسندگان

1 دانشجوی دکتری، گروه فیزیک، دانشکده علوم پایه، دانشگاه شهرکرد، شهرکرد، ایران

2 دانشیار، گروه فیزیک، دانشکده علوم پایه، دانشگاه شهرکرد، شهرکرد، ایران.

3 دانشیار، گروه فیزیک، دانشکده علوم پایه، دانشگاه شهرکرد، شهرکرد، ایران

چکیده

در این پژوهش، سامانه چند لایه‌ای رسانای شفاف ZnSe/Ag/CdTe (ZAC) طراحی و شبیه‌سازی شد. ضخامت بهینه برای لایه‌‌ها به گونه‌ای تعیین شد که تراگسیل بالا و مقاومت الکتریکی پایین بطور همزمان حاصل شود. برای بررسی خواص اپتیکی سامانه چند لایه‌ای، طیف عبور، بازتاب و گاف انرژی موثر سامانه چند لایه‌ای تعیین شد. ضخامت بهینه برای لایه‌های ZnSe ، Ag و CdTe به ترتیب nm40، nm 12 و nm 35 محاسبه شد. نتایج نشان داد که سامانه طراحی شده می تواند به عنوان الکترود میان لایه‌ای در سلول‌های خورشیدی، استفاده شود. برای این منظور، سلول‌ خورشیدی تاندم دو ترمیناله پروسکایت (CH3NH3PbI3) و سیلیکون با ساختار FTO/ TiO2/ Pervoskite (CH3NH3PbI3) / Spiro-OMeTAD/ ZAC/ C-Si (n)/ C-Si (p)/ C-Si (p+)/Mo با استفاده از نرم‌افزار SCAPS شبیه‌سازی شد. برای مقادیر ولتاژ مدار باز (Voc)، چگالی جریان (Jsc)، ضریب پر شدگی و بازده تبدیل توان (PCE) به ترتیب V62/1، mA/cm2 40/20، 30/89 و 51/29 درصد بدست آمد. بطور کلی نتایج نشان داد که سامانه طراحی شده ZAC پتانسیل مناسبی برای به‌کارگیری در ادوات اپتوالکترونیکی دارد.

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