Enhanced efficiency of PbS quantum dot-sensitized solar cells using plasmonic photoanode

Swati Bhardwaj, Arnab Pal, Kuntal Chatterjee, Tushar H. Rana, Gourav Bhattacharya, Susanta Sinha Roy, Papia Chowdhury, Ganesh D. Sharma, Subhayan Biswas

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this report, an effort has been made to develop an efficient PbS quantum dot-sensitized photoanode by simple successive ionic layer adsorption and reduction technique to enhance the overall photovoltaic performance of PbS quantum dot-sensitized solar cells. Three strategies have been adopted for the improvement of the photovoltaic performance of PbS quantum dot-sensitized solar cells, i.e., (i) by incorporation of TiO2-Au nanocomposites, where Au nanoparticles of different sizes are embedded into a TiO2 matrix, and (ii) variation of temperature at which quantum dots are deposited (iii) by postdeposition annealing of QD-sensitized photoanode in Ar atmosphere. We have used electrophoretic deposition technique to develop the nanocomposite-doped photoanode. High-resolution transmission electron microscopy confirms that the Au particles dispersed in the TiO2 matrix vary from 2 to 50 nm and PbS quantum dot size ranges 3.5–6 nm. The optical absorption of PbS quantum dot-sensitized TiO2-Au-incorporated photoanode is substantially enhanced as confirmed from the UV-visible absorption spectra measurements. The current-voltage characteristics of all the plasmonic quantum dot-sensitized solar cells under illumination (100 mW/cm2, AM 1.5) show significant improvement in power conversion efficiency using the abovementioned strategies. The maximum power conversion efficiency observed in PbS quantum dot-based quantum dot-sensitized solar cells is 7.0%. Electroimpedance spectroscopy has been utilized to understand the recombination kinetics in these solar cells.
LanguageEnglish
JournalJOURNAL OF NANOPARTICLE RESEARCH
Volume20
Issue number7
DOIs
Publication statusPublished - 17 Jul 2018

Keywords

  • Quantum dot-sensitized solar cells
  • Electrophoretic deposition
  • Gold nanoparticles
  • Energy conversion

Cite this

Bhardwaj, Swati ; Pal, Arnab ; Chatterjee, Kuntal ; Rana, Tushar H. ; Bhattacharya, Gourav ; Roy, Susanta Sinha ; Chowdhury, Papia ; Sharma, Ganesh D. ; Biswas, Subhayan. / Enhanced efficiency of PbS quantum dot-sensitized solar cells using plasmonic photoanode. In: JOURNAL OF NANOPARTICLE RESEARCH. 2018 ; Vol. 20, No. 7.
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title = "Enhanced efficiency of PbS quantum dot-sensitized solar cells using plasmonic photoanode",
abstract = "In this report, an effort has been made to develop an efficient PbS quantum dot-sensitized photoanode by simple successive ionic layer adsorption and reduction technique to enhance the overall photovoltaic performance of PbS quantum dot-sensitized solar cells. Three strategies have been adopted for the improvement of the photovoltaic performance of PbS quantum dot-sensitized solar cells, i.e., (i) by incorporation of TiO2-Au nanocomposites, where Au nanoparticles of different sizes are embedded into a TiO2 matrix, and (ii) variation of temperature at which quantum dots are deposited (iii) by postdeposition annealing of QD-sensitized photoanode in Ar atmosphere. We have used electrophoretic deposition technique to develop the nanocomposite-doped photoanode. High-resolution transmission electron microscopy confirms that the Au particles dispersed in the TiO2 matrix vary from 2 to 50 nm and PbS quantum dot size ranges 3.5–6 nm. The optical absorption of PbS quantum dot-sensitized TiO2-Au-incorporated photoanode is substantially enhanced as confirmed from the UV-visible absorption spectra measurements. The current-voltage characteristics of all the plasmonic quantum dot-sensitized solar cells under illumination (100 mW/cm2, AM 1.5) show significant improvement in power conversion efficiency using the abovementioned strategies. The maximum power conversion efficiency observed in PbS quantum dot-based quantum dot-sensitized solar cells is 7.0{\%}. Electroimpedance spectroscopy has been utilized to understand the recombination kinetics in these solar cells.",
keywords = "Quantum dot-sensitized solar cells, Electrophoretic deposition, Gold nanoparticles, Energy conversion",
author = "Swati Bhardwaj and Arnab Pal and Kuntal Chatterjee and Rana, {Tushar H.} and Gourav Bhattacharya and Roy, {Susanta Sinha} and Papia Chowdhury and Sharma, {Ganesh D.} and Subhayan Biswas",
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Bhardwaj, S, Pal, A, Chatterjee, K, Rana, TH, Bhattacharya, G, Roy, SS, Chowdhury, P, Sharma, GD & Biswas, S 2018, 'Enhanced efficiency of PbS quantum dot-sensitized solar cells using plasmonic photoanode', JOURNAL OF NANOPARTICLE RESEARCH, vol. 20, no. 7. https://doi.org/10.1007/s11051-018-4301-8

Enhanced efficiency of PbS quantum dot-sensitized solar cells using plasmonic photoanode. / Bhardwaj, Swati; Pal, Arnab; Chatterjee, Kuntal; Rana, Tushar H.; Bhattacharya, Gourav; Roy, Susanta Sinha; Chowdhury, Papia; Sharma, Ganesh D.; Biswas, Subhayan.

In: JOURNAL OF NANOPARTICLE RESEARCH, Vol. 20, No. 7, 17.07.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Enhanced efficiency of PbS quantum dot-sensitized solar cells using plasmonic photoanode

AU - Bhardwaj, Swati

AU - Pal, Arnab

AU - Chatterjee, Kuntal

AU - Rana, Tushar H.

AU - Bhattacharya, Gourav

AU - Roy, Susanta Sinha

AU - Chowdhury, Papia

AU - Sharma, Ganesh D.

AU - Biswas, Subhayan

N1 - No Accepted version

PY - 2018/7/17

Y1 - 2018/7/17

N2 - In this report, an effort has been made to develop an efficient PbS quantum dot-sensitized photoanode by simple successive ionic layer adsorption and reduction technique to enhance the overall photovoltaic performance of PbS quantum dot-sensitized solar cells. Three strategies have been adopted for the improvement of the photovoltaic performance of PbS quantum dot-sensitized solar cells, i.e., (i) by incorporation of TiO2-Au nanocomposites, where Au nanoparticles of different sizes are embedded into a TiO2 matrix, and (ii) variation of temperature at which quantum dots are deposited (iii) by postdeposition annealing of QD-sensitized photoanode in Ar atmosphere. We have used electrophoretic deposition technique to develop the nanocomposite-doped photoanode. High-resolution transmission electron microscopy confirms that the Au particles dispersed in the TiO2 matrix vary from 2 to 50 nm and PbS quantum dot size ranges 3.5–6 nm. The optical absorption of PbS quantum dot-sensitized TiO2-Au-incorporated photoanode is substantially enhanced as confirmed from the UV-visible absorption spectra measurements. The current-voltage characteristics of all the plasmonic quantum dot-sensitized solar cells under illumination (100 mW/cm2, AM 1.5) show significant improvement in power conversion efficiency using the abovementioned strategies. The maximum power conversion efficiency observed in PbS quantum dot-based quantum dot-sensitized solar cells is 7.0%. Electroimpedance spectroscopy has been utilized to understand the recombination kinetics in these solar cells.

AB - In this report, an effort has been made to develop an efficient PbS quantum dot-sensitized photoanode by simple successive ionic layer adsorption and reduction technique to enhance the overall photovoltaic performance of PbS quantum dot-sensitized solar cells. Three strategies have been adopted for the improvement of the photovoltaic performance of PbS quantum dot-sensitized solar cells, i.e., (i) by incorporation of TiO2-Au nanocomposites, where Au nanoparticles of different sizes are embedded into a TiO2 matrix, and (ii) variation of temperature at which quantum dots are deposited (iii) by postdeposition annealing of QD-sensitized photoanode in Ar atmosphere. We have used electrophoretic deposition technique to develop the nanocomposite-doped photoanode. High-resolution transmission electron microscopy confirms that the Au particles dispersed in the TiO2 matrix vary from 2 to 50 nm and PbS quantum dot size ranges 3.5–6 nm. The optical absorption of PbS quantum dot-sensitized TiO2-Au-incorporated photoanode is substantially enhanced as confirmed from the UV-visible absorption spectra measurements. The current-voltage characteristics of all the plasmonic quantum dot-sensitized solar cells under illumination (100 mW/cm2, AM 1.5) show significant improvement in power conversion efficiency using the abovementioned strategies. The maximum power conversion efficiency observed in PbS quantum dot-based quantum dot-sensitized solar cells is 7.0%. Electroimpedance spectroscopy has been utilized to understand the recombination kinetics in these solar cells.

KW - Quantum dot-sensitized solar cells

KW - Electrophoretic deposition

KW - Gold nanoparticles

KW - Energy conversion

U2 - 10.1007/s11051-018-4301-8

DO - 10.1007/s11051-018-4301-8

M3 - Article

VL - 20

JO - JOURNAL OF NANOPARTICLE RESEARCH

T2 - JOURNAL OF NANOPARTICLE RESEARCH

JF - JOURNAL OF NANOPARTICLE RESEARCH

SN - 1388-0764

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