The Investigation of Effect on The Efficiency of CdTe-Based Solar Cell of MoO3 Buffer Layer

Yıl 2019, Cilt: 14 Sayı: 1, 22 - 27, 31.05.2019

Yunus Özen

https://doi.org/10.29233/sdufeffd.482424

Öz

In
this study, the effect on the efficiency of CdS/CdTe solar cell with MoO₃ buffer
layer was examined. Two sample was grown as Cam/FTO/SnO₂/CdS/CdTe/Au
and Cam/FTO/SnO₂/CdS/CdTe/MoO₃/Au. MoO₃ layer
was deposited as a buffer layer between CdTe and metal electrode in the back
contact of CdTe solar cell. Solar cells were grown on glass/fluorine tin oxide
substrate by Sputtering system. The morphological properties of CdS/CdTe solar
cell structure with MoO₃ buffer layer have been evaluated by means
of scanning electron microscope (SEM) and atomic force microscopy (AFM)
measurements. In addition, the cell device was fabricated to obtain electrical
output parameters of both the traditional CdTe-based cell and CdTe cell with
MoO₃ buffer layer. The current‒voltage measurements were carried out
at room temperature under both dark and air mass 1.5 global radiations. The
energy conversion efficiency value has been obtained for traditional cell and
the cell with MoO₃ buffer layer as 8.93% and 10.31% 1 Sun,
respectively. It was observed that the integration of MoO₃ layer
into CdTe-based solar cell increased cell efficiency by 15.45%.

Anahtar Kelimeler

CdTe-based thin film solar cell, MoO3 buffer layer, The energy conversion efficiency

MoO3 Tampon Tabakasının CdTe-Bazlı Güneş Hücresinin Verimliliği Üzerine Etkisinin İncelenmesi

Öz

Bu çalışmada, MoO₃
tampon tabakasının CdS/CdTe güneş hücresinin verimliliği üzerine etkisi
araştırıldı. Cam/FTO/SnO₂/CdS/CdTe/Au ve Cam/FTO/SnO₂/CdS/CdTe/MoO₃/Au
olmak üzere iki adet numune üretildi. MoO₃ tabakası CdTe ve arka
kontağın metal elektrotu arasına tampon tabaka olarak büyütüldü. Güneş
hücreleri cam/flor katkılı kalay oksit alttaş üzerine Sıçratma (Sputtering)
sistemi ile büyütüldü. MoO₃ tampon tabakası içeren CdS/CdTe güneş
hücresinin morfolojik özellikleri atomik kuvvet mikroskobu (AFM) ve taramalı
elektron mikroskobu (SEM) ölçümleri ile incelendi. Ayrıca, güneş hücre
yapılarının elektriksel çıkış parametrelerini belirlemek için hem geleneksel CdTe-bazlı
güneş hücresinin hem de MoO₃ tabakası içeren CdTe-bazlı güneş
hücresinin fabrikasyonları yapıldı. Akım-voltaj ölçümleri oda sıcaklığında
karanlık ve 1.5G ışık altında yapıldı. Enerji dönüşüm verimlilik değeri 1
Güneş’de geleneksel ve MoO₃ tabakası içeren güneş hücreleri için
sırasıyla %8.93 ve %10.31 olarak elde edildi. MoO₃ tabakasının
CdTe-bazlı güneş hücresine entegrasyonunun hücre verimliliğini %15.45 oranında
arttığı gözlemlendi.

Anahtar Kelimeler

CdTe-bazlı ince film güneş hücresi, MoO3 tampon tabaka, Enerji dönüşüm verimliliği, Enerji dönüşüm verimliliği

Kaynakça

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