Structural, Surface And Electrical Properties Of Hydrothermally Carbon (HTC) Doped-PbS Thin Films Produced By Spray Method

Yıl 2025, Cilt: 12 Sayı: 27, 375 - 389, 24.12.2025

Fatımah Talal Munshid Munshid , Fatma Meydaneri Tezel

https://doi.org/10.54365/adyumbd.1713888

Öz

Nanostructured lead sulphide (PbS) has aroused significant research interest due to its tunable band gap ranging from 0.4 to 2.6 eV, making it suitable for applications in fiber optic communication, spectroscopy, imaging, security, and remote sensing, amongst others. Recently, various metals and heteroatoms have been incorporated into PbS nanostructures to enhance their physical, chemical, and optoelectronic properties for a variety of uses. In this study, hydrothermal carbon (HTC) infused PbS nanocomposite thin films were deposited on glass substrates that were maintained at a temperature of 100 °C through a spray technique. The grain sizes observed for films with 2 and 3 sprays were calculated as 31.32 nm and 28.74 nm, respectively, and it was observed that grain sizes decreased as the number of sprays increased. The four-point probe technique was used to determine the electrical resistivity values. For 2 and 3 spray numbers, electrical resistivity values were measured as 0.33 Ωcm and 0.76 Ωcm, respectively.

Anahtar Kelimeler

PbS Thin film , Hydrothermal carbon (HTC) , Spray method , Electrical resistivity , Lattice strain

Proje Numarası

KBÜBAP-25-YL-020

Sprey Yöntemiyle Üretilen Hidrotermal Karbon (HTC) Katkılı-PbS İnce Filmlerin Yapısal, Yüzey ve Elektriksel Özellikleri

Öz

Nanoyapılı kurşun sülfür (PbS), 0.4 ila 2.6 eV arasında değişen ayarlanabilir bant aralığı nedeniyle önemli araştırma ilgisi uyandırmıştır ve bu da onu diğer filmlerin yanı sıra fiber optik iletişim, spektroskopi, görüntüleme, güvenlik ve uzaktan algılama uygulamaları için uygun hale getirmiştir. Son zamanlarda, çeşitli kullanımlar için fiziksel, kimyasal ve optoelektronik özelliklerini geliştirmek amacıyla PbS nanoyapılarına çeşitli metaller ve heteroatomlar dahil edilmiştir. Bu çalışmada, hidrotermal karbon (HTC) katkılanan PbS nanokompozit ince filmler, püskürtme tekniği ile 100 °C sıcaklıktaki cam alt tabakalar üzerine depolanmıştır. Filmlerin 2 ve 3 sprey sayısına bağlı olarak gözlenen tane boyutları sırası ile 31.32 nm ve 28.74 nm olarak hesaplanmıştır ve sprey sayısının artması ile tane boyutlarının küçüldüğü görülmektedir. Elektriksel özdirenç değerlerini belirlemek için dört nokta probe tekniği kullanılmıştır. 2 ve 3 sprey sayısı için elektriksel özdirenç değerleri sırasıyla 0.33 Ωcm ve 0.76 Ωcm olarak ölçülmüştür.

Anahtar Kelimeler

PbS İnce film , Hidrotermal karbon (HTC) , Püskürtme yöntemi , Elektriksel özdirenç , Örgü gerinimi

Destekleyen Kurum

Karabük Üniversitesi BAP Koordinatörlüğü

Proje Numarası

KBÜBAP-25-YL-020

Teşekkür

Bu çalışma Karabük Üniversitesi BAP Koordinatörlüğü tarafından KBÜBAP-25-YL-020 proje kodu ile desteklenmiştir. Yazarlar KBÜ-BAP birimine finansal desteklerinden dolayı teşekkür eder. Ayrıca deneysel çalışmalar sırasında kullanılan ekipmanlar için Karabük Üniversitesi Demir Çelik Enstitüsü’ne teşekkür ederiz.

Kaynakça

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