KÜPRİK OKSİT/SİLİSYUM HETEROEKLEMLİ NANODİYOTLARIN FOTOVOLTAİK ÖZELLİKLERİ

Funda AKSOY AKGÜL

KÜPRİK OKSİT/SİLİSYUM HETEROEKLEMLİ NANODİYOTLARIN FOTOVOLTAİK ÖZELLİKLERİ

Funda AKSOY AKGÜL

Öz

Aygıt uygulamaları için nanoyapılı materyallerin sentezlenmesinde, ucuz olması sebebiyle solüsyon-bazlı yaklaşımlar kullanılır. Bu çalışmada, Küprik oksit/Silisyum p-n heteroeklemli nanodiyotların fotovoltaik performansı incelenmiştir. Yüksek yoğunluklu ve dikey olarak düzgün sıralanmış Silisyum nanotel kümeleri, n-tipi (100)-yönelimli kristal Silisyum dilimi üzerine akımsız dağlama tekniği ile sentezlendi. Daha sonra, üç-boyutlu heteroyapılar üretmek için p-tipi Küprik oksit ince filmleri Silisyum nanoteller üzerine kimyasal depolama yöntemi ile kaplandı. Akım-gerilim (I-V) ölçümleri, üretilen heteroeklemli diyotların fotovoltaik özelliklerini incelemek için kullanıldı. AM 1.5 G aydınlatma koşulları altında en yüksek güç dönüştürme verimliliği %0,58 olarak bulundu. Ayrıca, 400-1100 nm arasında geniş bir dalgaboyu spektrumunda oldukça yüksek dış kuantum verimi saptandı.

Anahtar Kelimeler

Küprik oksit ince filmi, Silisyum nanoteller, p-n heteroeklemli fotovoltaik diyot

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