scholarly journals Role of π-spacer in Regulating the Photovoltaic Performance of Copper Electrolyte Dye-sensitized Solar Cells Using Triphenylimidazole Dyes

2022 ◽  
Author(s):  
Giribabu Lingamallu ◽  
Siva Gangadhar Palivela ◽  
Anooja Jagadeesh ◽  
Rajesh Naga Manne ◽  
Andrew Simon George ◽  
...  
Keyword(s):  
Solar Cells ◽  
Critical Role ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Copper Electrolyte ◽  
Sensitized Solar Cells

In dye-sensitized solar cells (DSSC), π-spacers play a critical role in regulating photovoltaic accomplishment. This is more pronounced when we use alternate redox mediators like cobalt and copper which are...

Re-evaluating the role of phosphinic acid (DINHOP) adsorption at the photoanode surface in the performance of dye-sensitized solar cells

2020 ◽  
Vol 22 (3) ◽  
pp. 1756-1766
Author(s):  
Manuel Rodríguez-Perez ◽  
Felipe Noh-Pat ◽  
Alfredo Romero-Contreras ◽  
Emigdio J. Reyes-Ramírez ◽  
Siva Kumar Krishnan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Phosphinic Acid ◽  
Hybrid Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dineohexyl phosphinic acid (DINHOP) is a popular amphiphilic molecular insulator considered as the most efficient co-adsorbent (co-grafter) for the improvement of the photovoltaic performance of TiO2 based hybrid solar cells.

Investigation on the Origin of Variation in Photovoltaic Performance Using D-D-π-A and D-A-π-A Triphenylimidazole Dyes with Copper Electrolyte

2021 ◽  
Author(s):  
Giribabu Lingamallu ◽  
Siva Gangadhar Palivela ◽  
Anooja Jagadeesh ◽  
Andrew Simon George ◽  
Govind Reddy ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Copper Electrolyte ◽  
Sensitized Solar Cells

The potential of using non-planar triphenylimidazole donor-based dyes in dye-sensitized solar cells was explored by synthesizing two novel dyes LG-P1 and LG-P3, in D-D-π-A and D-A-π-A architectures. Anthracene and benzothiadiazole...

The Performance‐Determining Role of Lewis Bases in Dye‐Sensitized Solar Cells Employing Copper‐Bisphenanthroline Redox Mediators

2020 ◽  
Vol 10 (37) ◽  
pp. 2002067
Author(s):  
Sebastian O. Fürer ◽  
Rebecca A. Milhuisen ◽  
Muhammad K. Kashif ◽  
Sonia R. Raga ◽  
Shravan S. Acharya ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Lewis Bases ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

On the Role of the Anchoring Unit in the Efficiency of Pyranoanthocyanin-based Dye-Sensitized Solar Cells

2019 ◽  
Author(s):  
Ana Lucia Pinto ◽  
Luis Cruz ◽  
Vânia Gomes ◽  
Hugo Cruz ◽  
Giuseppe Calogero ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Tetraphenylethylene-bridged double-branched sensitizers featuring hetero-donors for dye-sensitized solar cells

2020 ◽  
Vol 44 (30) ◽  
pp. 12909-12915
Author(s):  
Yi-Qiao Yan ◽  
Yi-Zhou Zhu ◽  
Pan-Pan Dai ◽  
Jun Han ◽  
Mao Yan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Effects of hetero-donors on the photovoltaic performance of tetraphenylethylene-based organic dyes were systematically investigated.

scholarly journals Eco-Friendly Dye-Sensitized Solar Cells Based on Water-Electrolytes and Chlorophyll

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2150
Author(s):  
Ji-Hye Kim ◽  
Sung-Yoon Park ◽  
Dong-Hyuk Lim ◽  
So-Young Lim ◽  
Jonghoon Choi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Plasma Treatment ◽  
Ruthenium Complex ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Synthesis Process ◽  
Dye Sensitized ◽  
Water Based ◽  
Sensitized Solar Cells

Organic solvents used for electrolytes of dye-sensitized solar cells (DSSCs) are generally not only toxic and explosive but also prone to leakage due to volatility and low surface tension. The representative dyes of DSSCs are ruthenium-complex molecules, which are expensive and require a complicated synthesis process. In this paper, the eco-friendly DSSCs were presented based on water-based electrolytes and a commercially available organic dye. The effect of aging time after the device fabrication and the electrolyte composition on the photovoltaic performance of the eco-friendly DSSCs were investigated. Plasma treatment of TiO2 was adopted to improve the dye adsorption as well as the wettability of the water-based electrolytes on TiO2. It turned out that the plasma treatment was an effective way of improving the photovoltaic performance of the eco-friendly DSSCs by increasing the efficiency by 3.4 times. For more eco-friendly DSSCs, the organic-synthetic dye was replaced by chlorophyll extracted from spinach. With the plasma treatment, the efficiency of the eco-friendly DSSCs based on water-electrolytes and chlorophyll was comparable to those of the previously reported chlorophyll-based DSSCs with non-aqueous electrolytes.

scholarly journals In Depth Analysis of Photovoltaic Performance of Chlorophyll Derivative-Based “All Solid-State” Dye-Sensitized Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 198 ◽  
Author(s):  
Michèle Chevrier ◽  
Alberto Fattori ◽  
Laurent Lasser ◽  
Clément Kotras ◽  
Clémence Rose ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Density Functional ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Hole Transport ◽  
Tio2 Electrode ◽  
Dye Sensitized ◽  
Depth Analysis ◽  
Sensitized Solar Cells

Chlorophyll a derivatives were integrated in “all solid-state” dye sensitized solar cells (DSSCs) with a mesoporous TiO2 electrode and 2′,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene as the hole-transport material. Despite modest power conversion efficiencies (PCEs) between 0.26% and 0.55% achieved for these chlorin dyes, a systematic investigation was carried out in order to elucidate their main limitations. To provide a comprehensive understanding of the parameters (structure, nature of the anchoring group, adsorption …) and their relationship with the PCEs, density functional theory (DFT) calculations, optical and photovoltaic studies and electron paramagnetic resonance analysis exploiting the 4-carboxy-TEMPO spin probe were combined. The recombination kinetics, the frontier molecular orbitals of these DSSCs and the adsorption efficiency onto the TiO2 surface were found to be the key parameters that govern their photovoltaic response.

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