Scalable screen-printing manufacturing process for graphene oxide platinum free alternative counter electrodes in efficient dye sensitized solar cells

Kumar, Dinesh; Swami, Sanjay Kumar; Dutta, Viresh; Chen, Baixin; Bennett, Nick; Upadhyaya, Hari M.

doi:10.1016/j.flatc.2019.100105

Cited by 27 publications

(15 citation statements)

References 65 publications

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“…Moreover, Kumar et al introduces GO paste prepared from the mixture of tripineol and ethyl cellulose as an alternative to Pt CE in DSSC. 96 The fabricated DSSC is composed of TiO 2 soaked in dye (N719) along with GO as a CE demonstrated a PCE of 5.58%. The study refers to a new route to increase the efficiency of DSSC by using low-cost and highly active GO extracted from cellulose as a CE.…”

Section: Graphene and Its Composites As Cementioning

confidence: 98%

“…The study reveals a new technique to improve the electrical conduction by introducing GO with perovskite and cellulose to enhance the efficiency of the device. Moreover, Kumar et al introduces GO paste prepared from the mixture of tripineol and ethyl cellulose as an alternative to Pt CE in DSSC . The fabricated DSSC is composed of TiO 2 soaked in dye (N719) along with GO as a CE demonstrated a PCE of 5.58%.…”

Section: Two‐dimensional Materials Based Counter Electrodementioning

confidence: 99%

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Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells

et al. 2019

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Summary Photovoltaic (PV) technology got much attention in the past few decades in developing advanced and environment friendly solar cells (SCs). However, high cost, unstable nature, and low efficiency are major limitations towards commercialization of SCs. To overcome the issues, two‐dimensional materials (2DMs) have been exploited due to low cost, high catalytic activity, fast charge separation, and better electrochemical performance. The review emphasis on (a) the electrochemical performance of graphene and transition metal dichalcogenides (TMDCs) as a hole transport layer (HTL) in SCs and (b) to explore low‐cost and effective counter electrode (CE) based on graphene and TMDCs for dye‐sensitized solar cell (DSSC). The review presents a comparative analysis of 2DMs as HTL and CE to attain highly efficient and low‐cost PV devices. Multiple combinations of the material with graphene, graphene oxide (GO), reduced graphene oxide (rGO), tungsten disulfide (WS2), molybdenum disulfide (MoS2) as HTL, and CE material in PV cells are discussed and comparatively analyzed. Numerous strategies are briefly discussed to enhance the efficiency of SCs by utilizing graphene and TMDCs based HTL and CEs. The review focuses on the recent progress in developing low‐cost and highly efficient PV devices by using 2DMs. Our study reveals that GO/PEDOT:PSS demonstrate a maximum power conversion efficiency (PCE) of 13.1% when fabricated at different revolutions. Moreover, our statistical analysis unveils that efficiency of the cell can be enhanced by optimizing the layer thickness, which provide a route to develop highly efficient and better performance SCs that can be exploited for future commercial applications.

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Section: Graphene and Its Composites As Cementioning

confidence: 98%

Section: Two‐dimensional Materials Based Counter Electrodementioning

confidence: 99%

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells

et al. 2019

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“…In particular, PEO, XG, CMC, PC and PEG are widely used for the preparation of quasi-solid and solid polymer electrolyte-based devices. [17] TP is a solvent typically used in commercial TiO 2 pastes optimized for standard DSSCs prepared by screen-printing processes; [18] in addition, it finds application as solvent in pastes used for the deposition of C-based substrates [19] and composite materials. [20] PC and PEG show similar rheological behavior to TP, but they have been used mostly for the preparation of low-volatility electrolytes; in particular, PEG at M w = 200 g mol À 1 was chosen owing to its viscosity, this latter being roughly equal to that of TP.…”

Section: Effect Of Different Additives On the Cell Performancementioning

confidence: 99%

Photoanodes for Aqueous Solar Cells: Exploring Additives and Formulations Starting from a Commercial TiO₂ Paste

et al. 2020

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Whereas the commercialization of dye‐sensitized solar cells (DSSCs) is finally proceeding taking advantage of their low cost and tunable optical features, such as colour and transparency for both indoor and building‐integrated applications, the corresponding aqueous counterpart is still at its infancy. As the TiO2 electrode is a fundamental component for hybrid solar cells, this work investigates the effect of different molecular (α‐terpineol, propylene carbonate) and polymeric (polyethylene oxide, polyethylene glycol, carboxymethyl cellulose and xanthan gum) additives that can be introduced into a commercial TiO2 paste for for screen‐printing (or doctor blade). Among all, the addition of polyethylene glycol leads to the best cell performances, with markedly increased short‐circuit current density (+18 %) and power conversion efficiency (+48 %) with respect to the pristine (commercial) counterpart. When further explored at different concentration levels, electrodes fabricated from polyethylene glycol‐based pastes show different morphologies, thicknesses and performances, which are investigated through (photo)electrochemical, structural, physical‐chemical and microscopic techniques.

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“…However, GO is not efficient for absorbing visible light and has a low photocatalytic activity. It is necessary to develop GO‐based materials to achieve improved photoconversion efficiency by visible light [26–27] . Development of GO‐based materials is expected to overcome this crucial problem and leads to improved photoconversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

Eosin Y Covalently Modified on Graphene Oxide for Enhanced Photocatalytic Activity toward the Degradation of Antibiotic Cefaclor under Visible Light Irradiation

Luo

Chang²,

Huang³

et al. 2021

ChemistrySelect

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The covalent immobilization of eosin Y (EY) on graphene oxide (GO) was prepared and the obtained GO/EY composite can be used as a visible‐light‐driven photo‐catalyst for the degradation of cefaclor (CEC) antibiotics. The GO/EY composite exhibited much higher photocatalytic activity than pure GO and EY adsorbed GO. Using 2 mg L−1 of CEC at pH=7, 97 % degradation toward CEC could be achieved after irradiation time of 45 min. The enhanced photocatalytic activity for GO/EY composite can be attributed to the modification of GO by EY, which acted as a sensitizer for enhancing visible light absorption. The affecting factors of photocatalytic activities on the photocatalytic degradation of CEC were evaluated, including the effects of pH values, the photosensitized oxidation conditions and the reusability of the photocatalyst. Furthermore, the enhanced photocatalytic mechanism induced by visible‐light responsive GO/EY composite was proposed by reactive specie trapping experiments, and 1O2 and H2O2 were determined to be the main reactive oxygen species in the photocatalytic system. All these results demonstrated that organic dye sensitizer functionalized GO provided a nice candidate as a photocatalyst for the removal of CEC antibiotic from water under visible light irradiation.

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Scalable screen-printing manufacturing process for graphene oxide platinum free alternative counter electrodes in efficient dye sensitized solar cells

Cited by 27 publications

References 65 publications

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells

Photoanodes for Aqueous Solar Cells: Exploring Additives and Formulations Starting from a Commercial TiO₂ Paste

Eosin Y Covalently Modified on Graphene Oxide for Enhanced Photocatalytic Activity toward the Degradation of Antibiotic Cefaclor under Visible Light Irradiation

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Scalable screen-printing manufacturing process for graphene oxide platinum free alternative counter electrodes in efficient dye sensitized solar cells

Cited by 27 publications

References 65 publications

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells

Photoanodes for Aqueous Solar Cells: Exploring Additives and Formulations Starting from a Commercial TiO2 Paste

Eosin Y Covalently Modified on Graphene Oxide for Enhanced Photocatalytic Activity toward the Degradation of Antibiotic Cefaclor under Visible Light Irradiation

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Photoanodes for Aqueous Solar Cells: Exploring Additives and Formulations Starting from a Commercial TiO₂ Paste