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Loại tài liệu: Tài liệu số - Jounal article
Thông tin trách nhiệm: Yesica B. Castillo-S´ anchez, Luis A. Gonzalez
Nhà Xuất Bản:
Năm Xuất Bản: 2020
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PbS thin films were chemically deposited on glass substrates using alkaline aqueous solutions containing glycinernPb complexes. Highly compact and adherent films, formed by pyramid-like particles, crystallized in the cubicrnstructure of galena-type PbS. The specular nature and compactness of the films was enhanced with the increase ofrnthe bath pH, as confirmed through the analysis of optical and electrical properties. The optical band gap energyrnand conductivity of the photosensitive PbS films were found in the range of 1.39–1.53 eV and 44.7 to 153.9 mS/rncm, respectively. The photovoltaic characteristics of CdS/PbS heterojunction devices were investigated. Thernphotovoltaic device with structure SnO2:F/CdS (~120 nm)/PbS(~180 nm)/C had an open circuit voltage of 120rnmV and a short circuit current density of 0.85 mA/cm2, under illumination intensity of 100 mW/cm2.
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