PbS/CdS heterojunction quantum dot solar cells
المؤلف | Dagher, Sawsan |
المؤلف | Haik, Yousef |
المؤلف | Tit, Nacir |
المؤلف | Ayesh, Ahmad |
تاريخ الإتاحة | 2021-03-25T08:55:17Z |
تاريخ النشر | 2016 |
اسم المنشور | Journal of Materials Science: Materials in Electronics |
المصدر | Scopus |
الرقم المعياري الدولي للكتاب | 9574522 |
الملخص | The present work investigates the effects of combination of lead sulfide PbS quantum dots and cadmium sulfide CdS nanoparticles (NPs), with n-type and p-type semiconductors, on the photovoltaic performance of heterojunction solar cells. Namely, p-type semiconductors are: poly[3,4-ethylenedioxythiophene]–poly[styrenesulfonate] (PEDOT:PSS), copper oxide (CuO) NPs and graphene oxide (GO); while n-type semiconductors are: zinc oxide (ZnO) NPs and titanium dioxide (TiO2) NPs. The above were used to fabricate heterojunction solar cell structures via spin coating, chemical bath deposition and SILAR cycle methods. The morphology and energy band diagram for each solar cell were examined. The photovoltaic performance of the cells was measured under 1 sun illumination (irradiation of 100 mW/cm2). This efficiency ranged between 0.388 and 5.04 %. The solar cell with FTO/ZnO/TiO2/CdS/PbS/PEDOT:PSS/Au structure and optimum layers’ thickness exhibited a short-circuit current of 24.2 mA/cm2, open circuit voltage of 544 mV, a fill factor of 38.2 % and a power conversion efficiency of 5.04 % with reliably good stability. This is related to the uniform surface morphology throughout every cell layer without voids, pinholes or cracks. Furthermore, gradual band energy levels alignment of n-type and p-type NPs (CdS/PbS), as well as high hole mobility of PEDOT:PSS and the high electron affinity of ZnO and TiO2 are other major factors that controls quantum efficiency. |
اللغة | en |
الناشر | Springer New York LLC |
الموضوع | Cadmium sulfide Cadmium sulfide solar cells Conducting polymers Electron affinity Graphene Heterojunctions Hole mobility Nanocrystals Open circuit voltage Photovoltaic effects Quantum efficiency Semiconductor quantum dots Solar power generation Structural optimization Titanium dioxide Titanium oxides Zinc oxide 3 ,4-ethylenedioxythiophene Chemical-bath deposition Heterojunction solar cells High electron affinities N-type semiconductors Photovoltaic performance Power conversion efficiencies Quantum dot solar cells Solar cells |
النوع | Article |
الصفحات | 3328-3340 |
رقم العدد | 4 |
رقم المجلد | 27 |
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