Bu tez çalışmasında, Pr+3 katkılı TiO2 foto-anotlar kullanılarak boya duyarlı güneş
pillerinin verimliliğini arttırmak amaçlanmıştır. Saf ve Pr+3 katkılı TiO
2 numuneler, sol-
jel yöntemi kullanılarak sentezlenmiş ve TiO2 nanotozlar yardımıyla pastalar
oluşturulmuştur. Oluşturulan pastalar BDGP’nde foto-anot üretiminde kullanılmıştır. Saf ve %1(M) Pr+3 katkılı TiO2 foto-anotların yapısal, optiksel analizinin yapılması.
Bunun için X-ışını kırınımı (XRD), taramalı elektron mikroskobu (SEM) ve elementlerin kantitatif analizi için enerji dağılımı x-ışını spektroskopisi yapılmıştır. XRD analizinden elde edilen sonuçlara göre tanecik boyutunda küçülme görülmektedir. Bu durum boyanın yapıya daha iyi yerleşmesini sağlamaktadır. Boya, yapı içerisinde daha geniş yüzey alanı bulduğunda daha fazla ışık soğurur. Ayrıca, yapılan katkılama ile Eg (yasak bant aralığı) değerinde azalma meydana gelmiştir. Bu durumun soğurma miktarını arttırdığı görülmektedir. EDX analizinden elde edilen sonuçlarda Pr+3 yapıdaki
varlığını ispatlamaktadır (Tablo 5.3). SEM analiz sonuçları ise XRD analiz sonuçlarıyla uyuşmakta olup TiO2 parçacık boyutunun katkılama ile küçüldüğünü göstermiştir.
Saf ve Pr+3 katkılı TiO
2 foto-anotlar Pt kaplı foto-katotlar ile birleştirilerek
BDGP’leri üretilmiştir. Üretilen boya duyarlı güneş pillerinin maksimum akım yoğunluğu (Jmax), açık devre gerilimi (Voc), kısa devre akım yoğunluğu (Jsc), dolum faktörü (FF) ve verimlilik (η) gibi parametreleri J-V eğrilerinden faydalanılarak hesaplanmıştır. J-V analizinden elde edilen sonuçlar doğrultusunda saf ve %1 (M) Pr+3
katkılıTiO2 foto-anotlar karşılaştırılmıştır. %1 (M) Pr+3 katkılı TiO2 foto-anottan % 6,20
güç dönüşüm verimliliği elde edilmiş, saf TiO2 foto-anotunda ise güç dönüşüm
verimliliği %5,40 olarak hesaplanmıştır. Beklenildiği gibi katkılama ile birlikte verimde artış söz konusudur. Verim değerinde katkılama ile meydana gelen artışın ağırlıklı olarak Jsc’deki değişimden kaynaklandığı düşünülmektedir.
ÖNERİLER
Literatürde boya duyarlı güneş pillerinin verimliliğini arttırmak amacıyla yapılan pek çok çalışma mevcuttur. Hazırlanan tez çalışmasında, saf TiO2’nin Pr+3 ile
katkılanmasının sonucuna bağlı olarak TiO2 foto-anotların morfolojik, yapısal ve
optiksel özelliklerinde iyileşme meydana gelmiş ve buna bağlı olarak pil performansında artış gözlemlenmiştir. Bu tez çalışmasının, Pr+3 gibi lantanit katkılı
TiO2 malzemeler kullanılarak üretilen cihazlar için uygulanan teknik ve yöntem
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ÖZGEÇMİŞ
KİŞİSEL BİLGİLER
Adı Soyadı : Besime BİLGİÇ
Uyruğu : T.C.
Doğum Yeri ve Tarihi : Konya/MERAM, 01.01.1991
Telefon : 0553 669 26 11
Faks :
e-mail : besimebilgicgr@gmail.com
EĞİTİM
Derece Adı, İlçe, İl Bitirme Yılı
Lise : Muhittin Güzel Kılıç Lisesi, Meram, Konya 2009 Üniversite : Selçuk Üniversitesi, Selçuklu, Konya 2014 Yüksek Lisans : Selçuk Üniversitesi, Selçuklu, Konya 2019
Doktora : - -
İŞ DENEYİMLERİ
Yıl Kurum Görevi
2017-2018 Çumra Arıkören Orta Okulu Ücretli Öğretmen
2018-2019 Çumra Mesleki Ve Teknik Anadolu
Lisesi Ücretli Öğretmen
2019-2020 Selçuk Üniversitesi BAP Bursiyer
YABANCI DİLLER
İngilizce
YAYINLAR
1- Besime Bilgiç, Ahmet Emre Kavruk, Teoman Öztürk, Mücahit Yılmaz, Berna Gülveren ‘Effect of Using Praseodymium (Pr+3) Doped TiO
2 Photoanodes on the Photovoltaic Performance of Dye Sensitized Solar Cells‘ International Science and Academic Congress, (insac ’19) 19-20 April 2019, Konya-Turkey (Oral Presentation/ Abstract)