Reduced graphene oxide modified titania photoanodes for fabrication of the efficient dye-sensitized solar cell

Ramamoorthy, R.; Eswaramoorthi, V.; Ubaidullah, Mohd; Boobalan, Maria Susai; Sivagami, A. D.; Williams, R. Victor

doi:10.1007/s10854-019-01659-5

Cited by 7 publications

(5 citation statements)

References 65 publications

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“…Di antara berbagai bentuk dari material berbasis karbon tersebut, graphene dan material turunannya seperti graphene oxide (GO) dan reduced graphene oxide (rGO) menjadi pilihan karena memiliki sifat listrik dan struktur yang luar biasa [11]. Penggunaan nanokomposit TiO2-rGO sebagai fotoanoda pada sel surya tersensitasi dye telah meningkatkan efisiensi sel surya sebesar 30% dari sel surya tersensitasi dye dengan fotoanoda nanopartikel TiO2 murni [12]. Nanokomposit TiO2-rGO sebagai fotoanoda dalam sel surya tersensitasi dye dapat dibuat melalui beberapa rute, yaitu dengan mencampurkan larutan GO/rGO dengan nanopartikel TiO2 [13] ataupun dengan prekursor TiO2 [14].…”

Section: Pendahuluanunclassified

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EFEK PENAMBAHAN rGO PADA FOTOANODA TiO2 TERHADAP PERFORMA SEL SURYA TERSENSITASI DYE

SAFRIANI,

RAHMADANI

2021

JME

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Sel surya tersensitasi dye merupakan sel surya yang banyak menarik perhatian karena prosespembuatannya mudah dengan biaya fabrikasi yang rendah, namun efisiensi sel surya ini masih relatif rendah.Berbagai upaya dilakukan untuk meningkatkan efisiensi sel surya tersensitasi dye, salah satunya adalah denganmenambahkan reduced graphene oxide (rGO) pada fotoanoda TiO2 membentuk nanokomposit TiO2-rGO.Metode pencampuran larutan digunakan untuk membuat nanokomposit TiO2-rGO dari pasta TiO2 dan serbuk rGO dengan konsentrasi 5wt% dalam etanol. Metode screen printing digunakan untuk membuat fotoanoda nanokomposit TiO2-rGO. Sel surya tersensitasi dye dengan fotoanoda nanokomposit TiO2-rGO menunjukkan rapat arus hubung singkat short circuit (JSC) 6,68 mA cm−2, tegangan rangkaian terbuka (VOC) 0,65 V dan efisiensi konversi 3,11%; yang lebih tinggi dari sel surya dengan fotoanoda TiO2 murni. Peningkatan efisiensi konversi terjadi karena rGO dapat mempermudah transport elektron dan mengurangi terjadinya proses rekombinasi pada interface antar lapisan.

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Section: Pendahuluanunclassified

“…Kurva karakteristik J-V digunakan untuk menentukan parameter divais yaitu JSC, VOC, FF, serta efisiensi dan ditampilkan pada Tabel 1. Nilai VOC dan FF yang diperoleh mendekati nilai VOC dan FF dari penelitian yang dilakukan oleh Ramamoorthy dkk [12]. Akan tetapi nilai arus foto masih kecil yang menyebabkan nilai efisiensi berbeda cukup jauh.…”

Section: Hasilunclassified

EFEK PENAMBAHAN rGO PADA FOTOANODA TiO2 TERHADAP PERFORMA SEL SURYA TERSENSITASI DYE

SAFRIANI,

RAHMADANI

2021

JME

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“…Though, these nanoparticles be able to agglomerate which may minimize its usage. Nanomaterials such nanocomposite can be used as an alternative instead of nanoparticles with great sanitizing capability [15][16][17][18][19][20]. Via the agricultural wastes metal adsorption and biosorption wastes is considered a complicated process affected by multiple factors [21].…”

Section: Introductionmentioning

confidence: 99%

A New Comparison Between Ag-Nano Adsorbent and Walnut Shell Adsorbent

2021

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Silver nanoparticles were synthesised and used as a nano-adsorbent. Silver nanoparticles were added to adsorption system contain a (walnut husks -Manganese ions). The concept of this addition is to enhance the adsorption system due to high surface area to volume ratio of silver nanoparticles. Characterization of walnut husks was done by Fourier transformation infrared (FTIR). Characterization of silver nanoparticles was done also using many techniques, dynamic light scattering (DLS) and field emission scanning electron microscopy (FE-SEM) were used for determination of size and the potential of silver nanoparticles and also to identify the size and the shape of silver nanoparticles. The image showed an average particle diameter in the range (10-85 nm). Energy dispersive X-ray spectra (EDS) was used to examine the quantity of prepared silver nanoparticles. The optimum parameters were studied for this adsorption system such as contact time, weight of adsorpant, effect of pH, manganese concentration and the effect of addition of silver nanoparticles on the (walnut husks -Mn (II) ions) adsorption system. All the experiment parameters were fixed then silver nanoparticles were added to the system contain (walnut husks -Mn (II) ions). The results showed enhancement in the percentage of releasing by 2.2%. The data of the experiment has been investigated through Langmuir, Ferndelsch and Temkin. By evaluating the results, it can be concluded that the adsorption isotherm is most distinct through Freundlich.

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“…DSSC consists of 4 components, photoanode, dye molecule for light absorption, cathode, and electrolyte as a redox mediator [6]. Photoanodes play an important role in light absorption and transport of charge carriers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of TiO<sub>2</sub>-rGO Nanocomposite and its Application as Photoanode of Dye-Sensitized Solar Cell (DSSC)

Celline¹,

Subagja

Suryaningsih³

et al. 2021

MSF

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Dye-sensitized solar cells (DSSC) are solar cells that has a great potential to be applied as renewable energy conversion. The major advantages of DSSC are the ease of fabrication process and low cost of production. Despite of these advantages, the efficiency of DSSC for converting light into electricity is still low. It is due to charge recombination in DSSC which limits the photoanode performance. Numerous efforts has been carried out to increase the efficiency of DSSC, one of which is by adding reduced graphene oxide (rGO) to titanium oxide (TiO2) to obtain TiO2-rGO nanocomposite. In this study, the synthesis of TiO2-rGO nanocomposites was carried out with concentration of rGO are 0.6, 0.8, and 1.0 wt% to amount of TiO2. We have done some characterizations to confirm the result of synthesized TiO2-rGO. UV-Vis measurement shows the addition of rGO has widened the absorption up to 400 nm. The FT-IR spectrum confirms that the rGO peaks appears at wavelength of 1400, 1600, dan 1700 cm-1 which exhibited the vibration C-O, C=C, and C=O stretching from COOH groups, respectively. The highest efficiency of DSSC with photoanode TiO2-rGO nanocomposite is 0.09% which was obtained from 0.8 wt% of rGO.

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Reduced graphene oxide modified titania photoanodes for fabrication of the efficient dye-sensitized solar cell

Cited by 7 publications

References 65 publications

EFEK PENAMBAHAN rGO PADA FOTOANODA TiO2 TERHADAP PERFORMA SEL SURYA TERSENSITASI DYE

EFEK PENAMBAHAN rGO PADA FOTOANODA TiO2 TERHADAP PERFORMA SEL SURYA TERSENSITASI DYE

A New Comparison Between Ag-Nano Adsorbent and Walnut Shell Adsorbent

Synthesis of TiO<sub>2</sub>-rGO Nanocomposite and its Application as Photoanode of Dye-Sensitized Solar Cell (DSSC)

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