Browsing by Author "Özel, Sultan Süleyman"

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    Ternary Cuco2s4 Thiospinel Nanocrystal-Coated Photodiode With Improved Photoresponsivity and Acceptance Angles for Optoelectronic Applications
    (SPRINGER, 2020) Yıldırım, Murat; Koçyiğit, Adem; Sarılmaz, Adem; Özel, Sultan Süleyman; Kuş, Mahmut; Özel, Faruk
    Ternary-structured thiospinels have attracted great attention in recent years for energy applications due to their attractive characteristics such as simple production, earth-abundant components and non-toxic nature. In this work, copper cobalt sulfide (CuCo2S4 or carrollite) thiospinel nanocrystals were synthesized by a hot-injection method, and detailed electrical and optoelectronic characterizations were performed in a Schottky device. The synthesized nanocrystals were used as an interfacial layer between the Au metal and p-Si semiconductor to obtain an Au/CuCo2S4/p-Si device. The structural and morphological characterizations confirmed the crystallinity, nanostructure and composition of the CuCo2S4 nanocrystals. The I-V and C-V measurements were employed to characterize the Au/CuCo2S4/p-Si device for various illumination intensities. The obtained device exhibited good rectifying and photodiode properties as well as good photocapacitance. The Au/CuCo2S4/p-Si device can be used and improved for optoelectronic applications.