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المؤلفMehmood, Umer
المؤلفHarrabi, Khalil
المؤلفHussein, Ibnelwaleed A.
المؤلفAhmed, Shakeel
تاريخ الإتاحة2021-09-07T06:16:20Z
تاريخ النشر2016
اسم المنشورIEEE Journal of Photovoltaics
المصدرScopus
الرقم المعياري الدولي للكتاب21563381
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/JPHOTOV.2015.2479468
معرّف المصادر الموحدhttp://hdl.handle.net/10576/22819
الملخصHybrid photoanodes for dye-sensitized solar cells (DSSCs) were prepared by simple addition of graphene (GR) microplatelets to TiO 2 nanoparticulate paste. Transmission electron microscopy was used to confirm the presence of GR in composite films after heating at 450°C for 30 min. TiO 2 /GR-based DSSCs were fabricated using an N749 photosensitizer. The UV-Visible absorption spectroscopy, photocurrent-voltage (I-V) characteristic, and electrochemical impedance spectroscopy measurements were carried out to characterize the cells. The results indicate that the GR/TiO 2 photoanode improves the performance of the solar cell. This is because the GR/titania electrode accelerates electronic transportation and suppresses the charge recombination. Under optimal conditions, the solar cell based on GR/TiO 2 shows power conversion efficiency (PCE) of 4.1%, which is about 30% greater than the cell based on the pristine TiO 2 electrode (3.16%). The objective of this study is to develop a fast, cheap, and an effective means to increase the PCE of DSSCs. Density functional theory was used to calculate the bandgap of TiO 2 and graphnene-TiO 2 .
اللغةen
الناشرIEEE Electron Devices Society
الموضوعDye-sensitized solar cell (DSSC)
graphene (GR)
nanocomposite photoanodes
power conversion efficiency (PCE)
titania
العنوانEnhanced photovoltaic performance of dye-sensitized solar cells using TiO2-graphene microplatelets hybrid photoanode
النوعArticle
الصفحات196-201
رقم العدد1
رقم المجلد6
dc.accessType Abstract Only


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