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AuthorDagher, Sawsan
AuthorHaik, Yousef
AuthorTit, Nacir
AuthorAyesh, Ahmad
Available date2021-03-25T08:55:17Z
Publication Date2016
Publication NameJournal of Materials Science: Materials in Electronics
ResourceScopus
ISSN9574522
URIhttp://dx.doi.org/10.1007/s10854-015-4162-1
URIhttp://hdl.handle.net/10576/17989
AbstractThe 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.
Languageen
PublisherSpringer New York LLC
SubjectCadmium 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
TitlePbS/CdS heterojunction quantum dot solar cells
TypeArticle
Pagination3328-3340
Issue Number4
Volume Number27
dc.accessType Abstract Only


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