Tailored TiO2 Nanorod Arrays for Dye Sensitized Solar Cell Applications

2021 ◽  
Author(s):  
Jeba Beula R ◽  
Suganthi Devadason ◽  
Abiram A ◽  
Vidhya B
Keyword(s):  
Solar Cell ◽  
Seed Layer ◽  
Sol Gel ◽  
Blue Emission ◽  
Photo Luminescence ◽  
Dye Sensitized Solar Cell ◽  
Luminescence Spectra ◽  
Step Method ◽  
Blue Emission Band ◽  
Dye Sensitized

A TiO2 layer using titanium (IV) butoxide on fluorine doped tin oxide (FTO) substrate is used as a seed layer for the growth of 2D-TiO2 arrays (TRA). TRAs with length of ~1 to 2 µm were grown on seed layer (SL) by two step method. In the first step TiO2 SLs were deposited by sol-gel assisted spin coating method and the second step involved the typical hydrothermal technique to grow rutile TRAs. Most of the TRAs grown on FTO substrate without SL were randomly oriented and TRAs with 0.025M SL was oriented vertically from the substrate. Whereas TRAs grown on 0.05M SL showed hierarchical nanoflower clusters composed of a bunch of TRAs as petals blooming to all directions from the core. The XRD pattern showed all the three TRAs to be crystallized in a tetragonal rutile phase. Photo Luminescence spectra revealed that the TRAs on 0.05M SL have comparatively low intense blue emission band, predicting the suppressed electron-hole recombination rate. The power conversion efficiency of the dye sensitized solar cell (DSSC) with TRAs grown on 0.05M SL was recorded as 3%, which is 3 times greater than that without SL and 1.6 times greater than that with 0.025M SL in our observations.

PENGARUH KONSENTRASI KITOSAN PADA SINTESIS NANOPARTIKEL TIO2 UNTUK APLIKASI PADA DYESENSITIZED SOLAR CELL (DSSC)

2013 ◽  
Vol 3 (2) ◽  
pp. 77
Author(s):  
Maya Komalasari ◽  
Teuku Fawzul Akbardan ◽  
Bambang Sunendar
Keyword(s):  
Solar Cell ◽  
Sol Gel ◽  
Dye Sensitized Solar Cell ◽  
Solar Simulator ◽  
Dye Sensitized

Pada penelitian ini dilakukan sintesis nanopartikel TiO2 menggunakan metode sol-gel dengan pelarut air. Pada proses sintesis ditambahkan kitosan dengan konsentrasi 0; 2,5; 5; dan 10% v/v. TiO2hasil sintesis kemudian dikarakterisasi dengan menggunakan SEM, XRD, dan BET  untuk mengetahui morfologi,  struktur kristal, dan karakteristik pori. Selain itu keempat variasi TiO2diaplikasikan sebagai foto elektroda DSSC. Karakterisasi DSSC dilakukan dengan menggunakan solar simulator AM 1,5 untuk mengetahui karakteristik I-V DSSC. Hasil karakterisasi menunjukkan penambahan kitosan pada konsentrasi rendah (2,5% v/v) mengurangi fasa anatase pada kristal  TiO2dan cenderung memperbesar ukuran kristalit. Penambahan kitosan melebihi 5% meningkatkan fasa anatase dan memperkecil ukuran kristalit. Konsentrasi kitosan 2,5% memperkecil luas permukaan spesifik partikel dan volume total pori. Peningkatan konsentrasi kitosan memberi hasil sebaliknya. Performa DSSC terbaik didapat pada TiO2 dengan konsentrasi kitosan 2,5% saat sintesis, dengan Voc = 0,58 V, Jsc = 0,74 mA/cm , dan η = 0,51%.Kata kunci: titanium dioksida, Dye Sensitized Solar Cell, kitosan

Synthesis of Titanium Dioxide (TiO2) via Sol–Gel Method and Fabrication of Dye-Sensitized Solar Cell

2018 ◽  
Vol 10 (7) ◽  
pp. 695-699 ◽  
Author(s):  
Shikha Srivastava ◽  
S. P. Gautam ◽  
Richa Srivastava ◽  
A. K. Yadav ◽  
B. C. Yadav
Keyword(s):  
Titanium Dioxide ◽  
Solar Cell ◽  
Sol Gel ◽  
Dye Sensitized Solar Cell ◽  
Gel Method ◽  
Sol Gel Method ◽  
Dye Sensitized

Synthesis of Highly-Ordered TiO2 through CO2 Supercritical Extraction for Dye-Sensitized Solar Cell Application

2013 ◽  
Vol 789 ◽  
pp. 28-32 ◽  
Author(s):  
Bambang Priyono ◽  
Akhmad Herman Yuwono ◽  
B. Munir ◽  
A. Rahman ◽  
A. Maulana ◽  
...  
Keyword(s):  
Solar Cell ◽  
Renewable Energy Sources ◽  
High Surface ◽  
Sol Gel ◽  
Open Circuit ◽  
Supercritical Extraction ◽  
Dye Sensitized Solar Cell ◽  
Promising Alternative ◽  
Solar Cell Application ◽  
Dye Sensitized

Dye-sensitized solar cell (DSSC) is one of the very promising alternative renewable energy sources to anticipate the diminishing in the fossil fuel reserves in the next few decades and to make use of the abundance of intensive sunlight energy in tropical countries like Indonesia. TiO2nanoparticles have been used as the photo electrode in DSSC because of its high surface area and allow the adsorption of a large number of dye molecules. In the present study, TiO2aerogel have been synthesized via sol-gel process with water to inorganic precursor ratio (Rw) of 2.00, followed with subsequent drying by CO2supercritical extraction (SCE). As comparison, the TiO2xerogel was also prepared by conventional drying and annealing. Both types of gels were subjected to conventional and multi-step annealing. The resulting nanoparticles in aerogel and xerogel have a band-gap energy of 3.10 and 3.04 eV, respectively. The open circuit voltage (Voc) measurement reveals that the DSSC fabricated with aerogel provided a higher voltage (21,40 mV) than xerogel (1,10 mV).

scholarly journals Sol Gel Synthesized Nanosilica as Photoanode Material for Dye Sensitized Solar Cells (DSSCs) System

2014 ◽  
Vol 625 ◽  
pp. 110-113
Author(s):  
Stephanie Lau Chai Tying ◽  
Coswald Stephen Sipaut ◽  
Jedol Dayou ◽  
Rachel Fran Mansa
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Band Gap ◽  
Surface Area ◽  
High Surface ◽  
Sol Gel ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) have been extensively studied due to their promising potential for high efficiency, low production cost and eco-friendly production. The photoanode of DSSCs is traditionally composed of randomly packed TiO2 nanoparticles which have large specific surface area and suitable band gap (3.2 eV) for the effective injection of electrons from the dye molecules to the semiconductor. However, its high surface charge recombination rate accounts for its low efficiency. Alternatively, silica which is chemically inert, thermally stable, high surface area, and inexpensive can be used to substitute TiO2 as photoanode material. However, bulk silica has a wide band gap of 8.9 eV and its band gap need to be narrowed in order to use it as photoanode materials. Thus, in this study, the effect of nanosilica photoanode and its particle size on the performance of dye sensitized solar cell are investigated and characterized. The result is then compared with the fumed silica and conventional TiO2 DSSCs. Although the results shows that photon-electron conversion is inferior compared to TiO2 photoanode, it has a great potential as the fabrication cost is low and more environmental friendly.Keywords : Dye Sensitized Solar Cell, Photoanode material, Nanosilica, Sol gel synthesis

scholarly journals Development of TiO2 pastes modified with Pechini sol–gel method for high efficiency dye-sensitized solar cell

2008 ◽  
Vol 48 (3) ◽  
pp. 384-384 ◽  
Author(s):  
Mateja Hočevar ◽  
Urša Opara Krašovec ◽  
Marko Berginc ◽  
Goran Dražič ◽  
Nina Hauptman ◽  
...  
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Sol Gel ◽  
Dye Sensitized Solar Cell ◽  
Gel Method ◽  
Sol Gel Method ◽  
Dye Sensitized
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