Highly efficient mixed-halide mixed-cation perovskite solar cells based on rGO-TiO2 composite nanofibers

Jyoti V. Patil; Sawanta S. Mali; Akhilesh P. Patil; Pramod S. Patil; Chang Kook Hong

doi:10.1016/j.energy.2019.116396

Highly efficient mixed-halide mixed-cation perovskite solar cells based on rGO-TiO₂ composite nanofibers

Jyoti V. Patil, Sawanta S. Mali, Akhilesh P. Patil, Pramod S. Patil, Chang Kook Hong^*

^*Corresponding author for this work

Pure And Applied Chemistry

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

In this investigation, the electrospun reduced graphene oxide-titanium oxide composite nanofibers as an electron transporting materials have been employed for the perovskite solar cells. The synthesized electron transporting materials have been used for the fabrication of mixed-cation lead mixed-halide (FAPbI₃)_0.85(MAPbBr₃)_0.15 perovskite solar cells. The influence of reduced graphene oxide on titanium oxide nanofibers and their morphological and electronic properties have been investigated in detail. The optimized device having FTO/Bl-TiO₂/rGO₄–TiO₂/(FAPbI₃)_0.85(MAPbBr₃)_0.15/spiro-MeOTAD/Au configuration exhibited a η = 17.66% power conversion efficiency with an open circuit voltage of 1.070 V, short circuit current density of 22.16 mAcm⁻² and fill factor of 0.754. This obtained efficiency is much higher than that of mesoporous-titanium oxide (14.39%), pristine-titanium oxide nanofibers (15.82%) and other reduced graphene oxide-titanium oxide composite nanofibers based electron transporting materials.

Original language	English
Article number	116396
Number of pages	9
Journal	Energy
Volume	189
Early online date	18 Oct 2019
DOIs	https://doi.org/10.1016/j.energy.2019.116396
Publication status	Published - 15 Dec 2019

Funding

This work was supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( NRF-2018R1A6A1A03024334 ). This work was also supported by Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning ( 2016H1D3 A1909289 ) for an outstanding overseas young researcher.

Keywords

electron transporting materials
high-efficiency
large grain size
perovskite solar cells
role of rGO in TiO nanofibers

Access to Document

10.1016/j.energy.2019.116396

Cite this

@article{6696edc1bf924ef1903bd72fe0ef1a06,

title = "Highly efficient mixed-halide mixed-cation perovskite solar cells based on rGO-TiO2 composite nanofibers",

abstract = "In this investigation, the electrospun reduced graphene oxide-titanium oxide composite nanofibers as an electron transporting materials have been employed for the perovskite solar cells. The synthesized electron transporting materials have been used for the fabrication of mixed-cation lead mixed-halide (FAPbI3)0.85(MAPbBr3)0.15 perovskite solar cells. The influence of reduced graphene oxide on titanium oxide nanofibers and their morphological and electronic properties have been investigated in detail. The optimized device having FTO/Bl-TiO2/rGO4–TiO2/(FAPbI3)0.85(MAPbBr3)0.15/spiro-MeOTAD/Au configuration exhibited a η = 17.66% power conversion efficiency with an open circuit voltage of 1.070 V, short circuit current density of 22.16 mAcm−2 and fill factor of 0.754. This obtained efficiency is much higher than that of mesoporous-titanium oxide (14.39%), pristine-titanium oxide nanofibers (15.82%) and other reduced graphene oxide-titanium oxide composite nanofibers based electron transporting materials.",

keywords = "electron transporting materials, high-efficiency, large grain size, perovskite solar cells, role of rGO in TiO nanofibers",

author = "Patil, {Jyoti V.} and Mali, {Sawanta S.} and Patil, {Akhilesh P.} and Patil, {Pramod S.} and Hong, {Chang Kook}",

year = "2019",

month = dec,

day = "15",

doi = "10.1016/j.energy.2019.116396",

language = "English",

volume = "189",

journal = "Energy",

issn = "0360-5442",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Highly efficient mixed-halide mixed-cation perovskite solar cells based on rGO-TiO2 composite nanofibers

AU - Patil, Jyoti V.

AU - Mali, Sawanta S.

AU - Patil, Akhilesh P.

AU - Patil, Pramod S.

AU - Hong, Chang Kook

PY - 2019/12/15

Y1 - 2019/12/15

N2 - In this investigation, the electrospun reduced graphene oxide-titanium oxide composite nanofibers as an electron transporting materials have been employed for the perovskite solar cells. The synthesized electron transporting materials have been used for the fabrication of mixed-cation lead mixed-halide (FAPbI3)0.85(MAPbBr3)0.15 perovskite solar cells. The influence of reduced graphene oxide on titanium oxide nanofibers and their morphological and electronic properties have been investigated in detail. The optimized device having FTO/Bl-TiO2/rGO4–TiO2/(FAPbI3)0.85(MAPbBr3)0.15/spiro-MeOTAD/Au configuration exhibited a η = 17.66% power conversion efficiency with an open circuit voltage of 1.070 V, short circuit current density of 22.16 mAcm−2 and fill factor of 0.754. This obtained efficiency is much higher than that of mesoporous-titanium oxide (14.39%), pristine-titanium oxide nanofibers (15.82%) and other reduced graphene oxide-titanium oxide composite nanofibers based electron transporting materials.

AB - In this investigation, the electrospun reduced graphene oxide-titanium oxide composite nanofibers as an electron transporting materials have been employed for the perovskite solar cells. The synthesized electron transporting materials have been used for the fabrication of mixed-cation lead mixed-halide (FAPbI3)0.85(MAPbBr3)0.15 perovskite solar cells. The influence of reduced graphene oxide on titanium oxide nanofibers and their morphological and electronic properties have been investigated in detail. The optimized device having FTO/Bl-TiO2/rGO4–TiO2/(FAPbI3)0.85(MAPbBr3)0.15/spiro-MeOTAD/Au configuration exhibited a η = 17.66% power conversion efficiency with an open circuit voltage of 1.070 V, short circuit current density of 22.16 mAcm−2 and fill factor of 0.754. This obtained efficiency is much higher than that of mesoporous-titanium oxide (14.39%), pristine-titanium oxide nanofibers (15.82%) and other reduced graphene oxide-titanium oxide composite nanofibers based electron transporting materials.

KW - electron transporting materials

KW - high-efficiency

KW - large grain size

KW - perovskite solar cells

KW - role of rGO in TiO nanofibers

U2 - 10.1016/j.energy.2019.116396

DO - 10.1016/j.energy.2019.116396

M3 - Article

AN - SCOPUS:85074362157

SN - 0360-5442

VL - 189

JO - Energy

JF - Energy

M1 - 116396

ER -