TY - JOUR T1 - La katkılı ZnS kuantum noktalarının SILAR yöntemi ile sentezlenmesi ve onların özelliklerinin incelenmesi TT - Synthesis of La doped ZnS quantum dots by SILAR method and investigation of their properties AU - Ekinci, Arzu AU - Günbat, Muhammed AU - Horoz, Sabit AU - Şahin, Ömer PY - 2018 DA - December DO - 10.25092/baunfbed.428969 JF - Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi JO - BAUN Fen. Bil. Enst. Dergisi PB - Balıkesir Üniversitesi WT - DergiPark SN - 1301-7985 SP - 246 EP - 254 VL - 20 IS - 2 LA - tr AB - Bu çalışmada, ardışık iyonik tabaka adsorpsiyon ve reaksiyonu (SILAR)yöntemi kullanılarak oda sıcaklığında sentezlenen La (%1)-katkılı ZnSkuantum noktalarının (QDs) yapısal, morfolojikyüzeysel, optik vefotovoltaik özellikleri sırasıyla x- ray kırınımı (XRD), taramalı elektronmikroskobu (SEM), opticabsorpsiyon optik absorpsiyon vegelen fotonun elektrik akımına dönüşüm verimi (IPCE) gibi ölçümler yapılarakincelendi.La katkı maddesinden dolayı La katkılı ZnS QD’lara aitparçacık boyutu ve enerji band bant aralığının safZnS’ye kıyasla değiştiği gözlemlendi. Ayrıca, ilk defa bu mecvcut mevcut çalışmada,IPCE ölçümü yapılarak La katkılı ZnS QD’lara ait fotovoltaik özelliklerincelendi. Böylece, La katkılı ZnS QD’ların güneş pil uygulamalarındaumut verici hassaslaştırıcılar olarak kullanılabileceği bu çalışmadaönerilmektedir. KW - Çinko sülfür KW - fotovoltaik KW - karakterizasyon KW - katkılama KW - SILAR metod N2 - In this study, thestructural, morphological, optical and photovoltaic properties of La-(%1)-doped ZnS quantum dots (QDs) synthesized at room temperature using successiveionic layer adsorption and reaction (SILAR) method were investigated by x-raydiffraction (XRD), scanning electron microscopy (SEM) optical absorption andincident photon-to-electron conversion efficiency (IPCE),respectively.It was observed thatthe particle size and energy band gap of La-doped ZnS QDs were changed comparedto pure ZnS due to the La additive.Furthermore,photovoltaic properties of La-doped ZnS QDs were investigated by IPCEmeasurement for the first time in this current study. Thus, this study suggeststhat La-doped ZnS QDs can be used as promising sensitizers in solar cellapplications. CR - Soni, H., Chawda, M. ve Bodas, D., Study of electrical and optical properties of Mn doped ZnS clusters, Material Letters, 63, 30, 2669–2671, (2009). CR - Göde, F., Gümüş, C. ve Zor, M., Investigations on the physical properties of the polycrystalline ZnS thin films deposited by the chemical bath deposition method, Journal Crystal Growth, 299, 1, 136-141, (2007). CR - Yamaguchi, T., Yamamoto, Y., Tanaka, T. ve Yoshida, A., Investigations on the physical properties of the polycrystalline ZnS thin films deposited by the chemical bath deposition method,Thin Solid Films, 343, 4, 516-519, (1999). CR - Bredal, M. ve Merikhi, J., ZnS precipitation: morphology control, Journal of .Material Science, 33, 471-476, (1998). CR - Kamat, P.V., Quantum dot solar cells. The next bigthing in photovoltaics, Journal of Physical Chemstry Letters, 4, 908–918, (2013). CR - Kouhnavard, M., Ikeda, S., Ludin, N.A., Ahmad Khairudin, N.B., Ghaffari, B.V., Mat-Teridi, M.A., Ibrahim, M.A., Sepeai, S. ve Sopian, K., A review of semiconductor materials as sensitizers for quantum dot-sensitized solar cells. Renewable and Sustainable Energy Reviews, 37, 397–407, (2014). CR - Roy, P., Ota, J.R. ve Srivastava, S. K., Crystalline ZnS thin films by chemical bath deposition method and its characterization, Thin Solid Films, 515,4, 1912, (2006). CR - Karakaya, S., Gençyilmaz O. ve Özbas Ö., In katkılı CdS filmlerinin optik, elektriksel ve yüzeysel özelliklerinin incelenmesi, Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi ,14, 2, 52-58, (2012). CR - Prasad, N. ve Balasubramanian, K., Optical, phonon and efficient visible and infrared photocatalytic activity of Cu doped ZnS microcrystals, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 173, 687-694, (2017). CR - Archbold, M.D., Halliday, D.P., Durose, K., Hase, T.P.A., Boyle, D.S., Mazzamuto, S., Romeo, N. ve Bosio, A., Development of low temperature approaches to device quality CdS: A modified geometry for solution growth of thin films and their characterisation, Thin Solid Films, 515, 295, (2007). CR - Sambasivam, S., Reddy, B.K., Divya, A., Madhusudhana Rao, N., Jayasankar, C.K. ve Sreedhar, B., Optical and ESR studies on Fe doped ZnS nanocrystals, Physics Letters A, 373, 1465-1468, (2009). CR - Huang, C.M, Chen, L.C., Pan, G.T., Yang, C.K., Chang, W.S. ve Cheng, K.W., Effect of Ni on the growth and photoelectrochemical properties of ZnS thin films, Materials Chemisty and Physics, 117, 156-162, (2009). CR - Sarkar, R.,Tiwary, C.S., Kumbhakar, P. ve Mitra, A.K., Enhanced visible light emission from Co2+ doped ZnS nanoparticles, Physica B, 404, 3855-3858, (2009). CR - Gallagher, D., Hong, X. ve Nurmikko, A., Optical properties of manganese-doped nanocrystals of ZnS, Physical Review Letters, 72, 416- 419, (1994). CR - Jose, P.A., Beatriz, J.L., Eloisa, C., Purificacio, E., Fabienne, P. ve Bruno, V., Lanthanide doped ZnS quantum dots dispersed in silica glasses: an easy one pot sol–gel synthesis for obtaining novel photonicmaterials, Journal of Materials Chemistry, 18, 5193-5199, (2008). UR - https://doi.org/10.25092/baunfbed.428969 L1 - http://dergipark.org.tr/tr/download/article-file/480976 ER -