Ultrasonik Sprey Piroliz Tekniği ile Depolanan Bor-Katkılı CdS Filmlerinin İncelenmesi

Yıl 2018, Cilt: 18 Sayı: 2, 441 - 450, 31.08.2018

Murat Kellegöz Hilal Çako Seda Uzkalan Salih Köse

Öz

Bor katkısının CdS filmlerin yapısal, yüzeysel, optik ve elektriksel özellikleri üzerindeki etkisi tartışılmıştır. Bor katkılı ince filmler, 300±5°C’de ultrasonik sprey piroliz tekniği ile kadmiyum klorid (CdCl2; 0.05M), tiyüre (CS(NH2)2; 0.05M) ve borik asit (H3BO3; 0.05M) sulu çözeltisi kullanılarak payreks cam üzerine çöktürülerek elde edilmişlerdir. Çöktürülen ince filmlerin optik, elektriksel, yapısal ve yüzey özellikleri UV spektrofotometre, dört prob tekniği, SEM, AFM ve XRD ile incelenmiştir. X-ışını kırınımı çalışması, filmlerin düşük boron katkıları için (011) düzleminde tercihli yönelmeye polikristalin olduğunu göstermektedir. Bununla birlikte, tercihli yönelme (002) olarak değişmiştir. Bor konsantrasyonu arttıkça tane boyu da artmıştır. Katkısız ve bor katkılı CdS ince filmlerin optik bant aralıkları 2.39-2.46 eV aralığında bulunmuştur. Tane boyutu dağılımı 30.8-115.4 nm aralığında elde edilmiştir.

Anahtar Kelimeler

Yarı İletken Filmler, Bor Katkılı CdS Filmler, Fotovoltaik Güneş Pili

Kaynakça

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