Enhanced performance of a nanocrystalline dye-sensitized solar cell based on polyurethane dendrimers

Veerapandian, Selvaraj; Amudha, S.; Suthanthiraraj, S. Austin; Rahman, Mohammad Rezaur; Nasar, A. Sultan

doi:10.1039/c5ra04004c

Cited by 11 publications

(9 citation statements)

References 22 publications

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“…Employing the prepared dendrimer electrolyte G1, G2 and G3 as additive in LiI electrolyte the fabricated DSSCs were tested using solar simulator under standard test conditions. The device operation mechanism has been described in our previous report . The current density‐voltage (J‐V) characteristics of the devices are shown in Figure and the cell parameters such as open‐circuit photo‐voltage (V oc ), short circuit photo‐current density (J sc ), fill factor (FF) and photo conversion efficiency (η) are given in Table .…”

Section: Resultsmentioning

confidence: 99%

“…The device operation mechanism has been described in our previous report. [29] The current density-voltage (J-V) characteristics of the devices are shown in Figure 11 and the cell parameters such as open-circuit photo-voltage (V oc ), short circuit photo-current density (J sc ), fill factor (FF) and photo conversion efficiency (h) are given in Table 3.…”

Section: Dssc Performancementioning

confidence: 99%

“…[24] Dendrimers have also been successfully used as solar energy materials. [25][26][27][28][29] Indole based polyurethane dendrimer is not yet reported. The incorporation of indole moiety into the polyurethane dendritic structure is expected to show enhanced performance in dye-sensitized solar cell (DSSC) because the lone pair of electrons present in the nitrogen atom of indole and urethane groups will easily coordinate with metal cations of the dopant salt added, thereby involve in the electrochemical reaction occurs in the cell.…”

Section: Introductionmentioning

confidence: 99%

“…Dendrimers with different topological features synthesised so far find applications in various fields such as optoelectronic materials,, semiconductor,, molecular lens, organic light emitting diodes (OLEDs), catalyst, crosslinking process, biomedicals, drug delivery systems, gene transfection agents, MRI contrast agent and tissue repair scaffolds . Dendrimers have also been successfully used as solar energy materials …”

Section: Introductionmentioning

confidence: 99%

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The First Example of Bisindole‐Based Polyurethane Dendrimers: Synthesis and Performance in DSSC

Sathiyaraj

Kumar

Shanavas³

et al. 2017

ChemistrySelect

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A new B3‐type blocked isocyanate core and AB2‐type building block molecules containing bis‐indole moiety were synthesized via a scalable synthetic routes. Starting with these molecules, amine‐ and blocked isocyanate‐terminated polyurethane dendrimers up to third generation were build‐up using (i) a simple urethane interchange reaction, (ii) deprotection of amine and (iii) efficient conversion of amine into blocked isocyanate groups. The structural integrity of the core, building block and their intermediates were verified using FT‐IR, 1H‐NMR, and 13C‐NMR spectroscopy and HR‐MS technique. The structure and molecular weight of blocked isocyanate‐terminated dendrimers were confirmed using 1H‐NMR spectra and size exclusion chromatography with multi angle laser light scattering detector (SEC‐MALLS) technique respectively whereas the structure of all other dendrimers were confirmed using FT‐IR, 1H‐NMR, and 13C‐NMR spectroscopy. Dye‐sensitized solar cells (DSSC) were fabricated using these dendrimers as electrolytes; the DSSC fabricated with G3 dendrimer yielded an overall energy conversion efficiency (η) of 6.32 % upon illumination with 1 sun visible light.

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Section: Resultsmentioning

confidence: 99%

Section: Dssc Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The First Example of Bisindole‐Based Polyurethane Dendrimers: Synthesis and Performance in DSSC

Sathiyaraj

Kumar

Shanavas³

et al. 2017

ChemistrySelect

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“…DSSC based on SPE is fabricated by sandwiching an SPE film between the photoanode and counter electrode. SPEs based on polymer hosts such as poly(methyl methacrylate) (PMMA), poly(ethylene oxide) (PEO), polyurethane (PU), and poly(vinylidinefluoride‐ co ‐hexafluoropropylene) (PVDF‐HFP) have been reported. To the best of our knowledge, there is no report on poly(methyl acrylate) (PMA)‐ and poly(vinyl acetate) (PVAc)‐based SPE for application in DSSC.…”

Section: Introductionmentioning

confidence: 99%

Characterization of PMA–TPAI and PVAc–TPAI solid polymer electrolytes and application in dye‐sensitized solar cell

Azmar

Rozana

Winie

2018

J of Applied Polymer Sci

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Poly(methyl acrylate) (PMA)-tetrapropylammonium iodide (TPAI) and poly(vinyl acetate) (PVAc)-TPAI solid polymer electrolytes were prepared by solution casting method. DSC, FTIR, and conductivity results are reported. TPAI interacts with PMA and PVAc to form PMA-TPAI and PVAc-TPAI complexes. Formation of PMA-TPAI and PVAc-TPAI complexes are supported by the DSC and FTIR studies. Linear relationship for the dependence of glass-transition temperature, T g , on salt concentration allows the estimation of the complexation extent between polymer and salt. A greater extent of complexation for PMA with TPAI is observed and correlated with the FTIR results. The conductivities achieved at 15 wt % of TPAI for PMA and PVAc are 2.6 × 10 −11 and 1.3 × 10 −11 S cm −1 , respectively. Higher dielectric constant and lower T g of PMA result in higher number and mobility of ions, which lead to higher conductivity in accordance with σ = enμ. All-solid-state dye-sensitized solar cells (DSSCs) were assembled with PMA-TPAI and PVAc-TPAI electrolytes. DSSC efficiencies achieved for PMA and PVAc are 2.41% and 2.05%, respectively. Better performance of DSSC with PMA electrolyte is attributed to higher short-circuit current density, J sc , and lower recombination loss. Lower J sc , higher recombination loss, and degradation of counter electrode are the reasons for DSSC degradation.

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Star poly(4-vinylpyridine)s using dendritic ATRP initiators: Synthesis, electrolyte property and performance in dye sensitized solar cell

2017

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Enhanced performance of a nanocrystalline dye-sensitized solar cell based on polyurethane dendrimers

Abstract: The photovoltaic parameters of dye sensitized solar cells (DSSCs) fabricated with and without fourth generation polyurethane dendrimers have been discussed.

Cited by 11 publications

References 22 publications

The First Example of Bisindole‐Based Polyurethane Dendrimers: Synthesis and Performance in DSSC

The First Example of Bisindole‐Based Polyurethane Dendrimers: Synthesis and Performance in DSSC

Characterization of PMA–TPAI and PVAc–TPAI solid polymer electrolytes and application in dye‐sensitized solar cell

Star poly(4-vinylpyridine)s using dendritic ATRP initiators: Synthesis, electrolyte property and performance in dye sensitized solar cell

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