scholarly journals Enhanced performance of dye-sensitized solar cell with thermally stable natural dye-assisted TiO2/MnO2 bilayer-assembled photoanode

2020 ◽  
Vol 9 (4) ◽  
Author(s):  
Shyamal Datta ◽  
Argha Dey ◽  
Nayan Ranjan Singha ◽  
Subhasis Roy
Keyword(s):  
Solar Cell ◽  
Counter Electrode ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Natural Dye ◽  
Transport Layer ◽  
Dye Sensitized Solar Cell ◽  
Electron Transport Layer ◽  
Dye Sensitized ◽  
Bilayer Assembly

AbstractThis study reports the performance analysis of an organic dye-sensitized solar cell (DSSC), introducing MnO2 as an electron transport layer in TiO2/MnO2 bilayer assembly. The DSSCs have been fabricated using TiO2 and TiO2/MnO2 layer-by-layer architecture films onto fluorine-doped tin oxide (FTO) glass and sensitized with natural dye extracted from Malvaviscus penduliflorus flower in ethanol medium. The counter electrode was prepared to layer copper powder containing paste onto FTO's conductive side by the doctor's blade method. The optical, morphological, and structural properties of photoanodes were explored via ultraviolet–visible, field emission scanning electron microscopy, and X-ray diffraction analyses. Moreover, dye complexity and thermostability of dyes were characterized via Fourier-transform infrared spectroscopy and thermogravimetric analyses. The iodide/triiodide (i.e., I−/I3−) redox couple of electrolyte solution was employed as a charge transport medium between the electrodes. Finally, photoanode and counter electrode sandwiches were assembled to envisage the photovoltaic performance potential under simulated AM 1.5G solar illumination using 100 mW cm–2 light intensity. The as-fabricated DSSC comprising TiO2/MnO2 bilayer assembly exhibited 6.02 mA cm–2 short circuit current density (Jsc), 0.38 V open-circuit voltage (Voc), 40.38% fill factor, and 0.92% conversion efficiency, which is about 200% higher compared to the assembly devoid of MnO2 layer.

Optimization of Aluminium Doping Concentration in Titanium Dioxide Nanoparticles Photo Anode for Enhancing Efficiency of Dye-Sensitized Solar Cell

2020 ◽  
Vol 19 (06) ◽  
pp. 2050009
Author(s):  
Swati S. Kulkarni ◽  
Gajanan A. Bodkhe ◽  
Pasha W. Sayyad ◽  
Megha A. Deshmukh ◽  
S. S. Hussaini ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cell ◽  
Doping Concentration ◽  
Titanium Dioxide Nanoparticles ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cell ◽  
Eosin Y ◽  
Good Efficiency ◽  
Dye Sensitized

Well crystallized Aluminium (Al) doped Titanium dioxide (TiO2) nanoparticles with various doping concentration (0, 0.05[Formula: see text]M, 0.07[Formula: see text]M, 0.09[Formula: see text]M and 0.11[Formula: see text]M) were synthesized successfully by sol–gel route to develop the photo anode of Dye Sensitized Solar Cell (DSSC). Anatase crystalline nature of TiO2 nanoparticles was confirmed using X-ray diffraction (XRD) and Raman spectrophotometer. The Atomic Force Microscopy (AFM) was used to investigate the morphology of the photo anode (Al-doped TiO2 nanoparticles). The photovoltaic performance of the DSSC in terms of Current, Voltage and efficiency was investigated with a standard illumination of AM1.5G having an irradiance 100[Formula: see text]mW/cm2. Optimized values of Short Circuit Current density ([Formula: see text]), Open Circuit Voltage ([Formula: see text]) and efficiency ([Formula: see text]) obtained was 247.62[Formula: see text][Formula: see text]A/cm2, 359[Formula: see text]mV and 0.02456%, respectively for 0.07[Formula: see text]M Al doping concentration. Eco-friendly Eosin Y dye was used for sensitization of the photo anode. The optimized photovoltaic cell exhibits very good efficiency (80.05% more than the earlier reported work).

NATURAL HIBISCUS DYE AND SYNTHETIC ORGANIC EOSIN Y DYE SENSITIZED SOLAR CELLS USING TITANIUM DIOXIDE NANOPARTICLES PHOTO ANODE: COMPARATIVE STUDY

2019 ◽  
Vol 26 (03) ◽  
pp. 1850164 ◽  
Author(s):  
SWATI S. KULKARNI ◽  
S. S. HUSSAINI ◽  
GAJANAN A. BODKHE ◽  
MAHENDRA D. SHIRSAT
Keyword(s):  
Titanium Dioxide ◽  
Solar Cell ◽  
Titanium Dioxide Nanoparticles ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Dye Sensitized Solar Cell ◽  
Eosin Y ◽  
Dye Sensitized

Titanium dioxide (TiO[Formula: see text] nanoparticles have been synthesized by the cost effective Sol–Gel technique. Characteristics of TiO2 nanoparticles were investigated by X-ray diffraction and Fourier Transform Infrared spectroscopy. The Eosin Y dye and dye extracted from Hibiscus tea have been successfully used in fabrication of the dye sensitized solar cell. The photovoltaic performance of the dye sensitized solar cell indicates that the short circuit photo current, open circuit voltage and efficiency of the DSSC using Eosin Y dye is 10 times more compared to the DSSC using the Hibiscus dye.

PEDOT:PSS assisted preparation of a graphene/nickel cobalt oxide hybrid counter electrode to serve in efficient dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 100159-100168 ◽  
Author(s):  
Gentian Yue ◽  
Guang Yang ◽  
Fumin Li ◽  
Jihuai Wu
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Counter Electrode ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Sensitized Solar Cells

A much higher photovoltaic performance of a dye-sensitized solar cell with a (P-A) Gr/NiCo2O4 counter electrode is achieved than that of a Pt configuration device.

Effect of Lead-Free Perovskite Cs2SnI6 Addition in the Structure of Dye-Sensitized Solar Cell

2020 ◽  
Vol 860 ◽  
pp. 22-27
Author(s):  
Herlin Pujiarti ◽  
Rahmat Hidayat ◽  
Priastuti Wulandari
Keyword(s):  
Conversion Efficiency ◽  
Spin Coating ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Synthesis Product ◽  
Dye Sensitized ◽  
Vis Spectroscopy

Over the past few years, metal halide perovskites have been considered as a promising material for application in photovoltaic devices because of its unique optical and electrical properties. In particular, Sn-based perovskites have been being considered to replace Pb-based perovskite because of the Pb toxicity that will raise serious concerns on the environmental issue. In this report, we present our attempt to synthesize the Sn-based perovskite (namely, Cs2SnI6), which is air and thermal stable, and use it as an electron transport layer in dye-sensitized solar cells (DSSC) for improving its power conversion efficiency. The synthesize of Cs2SnI6 perovskite was done by mixing Cs2CO3 in HI and SnI4 in ethanol to form a precipitate at room temperature. The purification process was an important part to collect effectively the synthesis product. The fabrication of DSSC was done by a standard process based on the screen printing and spin-coating techniques, while the characterization of Cs2SnI6 was done by UV-Vis spectroscopy and XRD measurement. In the present experiment, the addition of the Cs2SnI6 layer was performed by spin coating the Cs2SnI6 solution onto the TiO2 mesoporous layer. The photovoltaic performance of the fabricated DSSC shows a significant enhancement in the short circuit photocurrent density (Jsc) and conversion efficiency, that is, from 15.04 mA/cm2 to 16.33 mA/cm2 from 5.7% to 6.75% due to the incorporation of spin-coated 5 mM Cs2SnI6 in comparison to the reference cell without Cs2SnI6.

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