Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells

The junction properties at the solution-processed titanium dioxide (TiO2)/n-type crystalline Si(n-Si) interface were studied for poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/n-Si heterojunction solar cells by the steady-state photovoltaic performance and transient reverse rec...

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Main Authors: Karim Md. Enamul, Saiful Islam A.T.M., Nasuno Yuki, Kuddus Abdul, Ishikawa Ryo, Shirai Hajime
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:EPJ Photovoltaics
Subjects:
Online Access:https://www.epj-pv.org/articles/epjpv/full_html/2020/01/pv190020/pv190020.html
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author Karim Md. Enamul
Saiful Islam A.T.M.
Nasuno Yuki
Kuddus Abdul
Ishikawa Ryo
Shirai Hajime
author_facet Karim Md. Enamul
Saiful Islam A.T.M.
Nasuno Yuki
Kuddus Abdul
Ishikawa Ryo
Shirai Hajime
author_sort Karim Md. Enamul
collection DOAJ
description The junction properties at the solution-processed titanium dioxide (TiO2)/n-type crystalline Si(n-Si) interface were studied for poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/n-Si heterojunction solar cells by the steady-state photovoltaic performance and transient reverse recovery characterizations. The power conversion efficiency could be increased from 11.23% to 13.08% by adjusting the layer thickness of TiO2 together with increasing open-circuit voltage and suppressed dark saturation current density. These findings originate from the enhancement of the carrier collection efficiency at the n-Si/cathode interface. The transient reverse recovery characterization revealed that the surface recombination velocity S was ∼375 cm/s for double TiO2 interlayer of ∼2 nm thickness. This value was almost the same as that determined by microwave photoconductance decay measurement. These findings suggest that solution-processed TiO2 has potential as a hole blocking layer for the crystalline Si photovoltaics.
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spelling doaj.art-33f624ec90fb4364aec3e7b7132aac172022-12-21T19:05:09ZengEDP SciencesEPJ Photovoltaics2105-07162020-01-0111710.1051/epjpv/2020004pv190020Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cellsKarim Md. Enamul0Saiful Islam A.T.M.1Nasuno Yuki2Kuddus Abdul3Ishikawa Ryo4Shirai Hajime5Graduate School of Science and Engineering, Saitama UniversityGraduate School of Science and Engineering, Saitama UniversityGraduate School of Science and Engineering, Saitama UniversityGraduate School of Science and Engineering, Saitama UniversityGraduate School of Science and Engineering, Saitama UniversityGraduate School of Science and Engineering, Saitama UniversityThe junction properties at the solution-processed titanium dioxide (TiO2)/n-type crystalline Si(n-Si) interface were studied for poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/n-Si heterojunction solar cells by the steady-state photovoltaic performance and transient reverse recovery characterizations. The power conversion efficiency could be increased from 11.23% to 13.08% by adjusting the layer thickness of TiO2 together with increasing open-circuit voltage and suppressed dark saturation current density. These findings originate from the enhancement of the carrier collection efficiency at the n-Si/cathode interface. The transient reverse recovery characterization revealed that the surface recombination velocity S was ∼375 cm/s for double TiO2 interlayer of ∼2 nm thickness. This value was almost the same as that determined by microwave photoconductance decay measurement. These findings suggest that solution-processed TiO2 has potential as a hole blocking layer for the crystalline Si photovoltaics.https://www.epj-pv.org/articles/epjpv/full_html/2020/01/pv190020/pv190020.htmlhole blocking layertio2surface recombination velocitytransient reverse recovery
spellingShingle Karim Md. Enamul
Saiful Islam A.T.M.
Nasuno Yuki
Kuddus Abdul
Ishikawa Ryo
Shirai Hajime
Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells
EPJ Photovoltaics
hole blocking layer
tio2
surface recombination velocity
transient reverse recovery
title Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells
title_full Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells
title_fullStr Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells
title_full_unstemmed Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells
title_short Solution-processed TiO2 as a hole blocking layer in PEDOT:PSS/n-Si heterojunction solar cells
title_sort solution processed tio2 as a hole blocking layer in pedot pss n si heterojunction solar cells
topic hole blocking layer
tio2
surface recombination velocity
transient reverse recovery
url https://www.epj-pv.org/articles/epjpv/full_html/2020/01/pv190020/pv190020.html
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