Improvement of the photovoltaic parameters of perovskite solar cells using a reduced-graphene-oxide-modified titania layer and soluble copper phthalocyanine as a hole transporter

Esmaiel Nouri; Mohammad Reza Mohammadi; Zong Xiang Xu; Vassilios Dracopoulos; Panagiotis Lianos

doi:10.1039/c7cp04538g

Improvement of the photovoltaic parameters of perovskite solar cells using a reduced-graphene-oxide-modified titania layer and soluble copper phthalocyanine as a hole transporter

Esmaiel Nouri
, Mohammad Reza Mohammadi (Lead / Corresponding author)
, Zong Xiang Xu
, Vassilios Dracopoulos
, Panagiotis Lianos (Lead / Corresponding author)

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

50 Citations (Scopus)

Abstract

Functional perovskite solar cells can be made by using a simple, inexpensive and stable soluble tetra-n-butyl-substituted copper phthalocyanine (CuBuPc) as a hole transporter. In the present study, TiO₂/reduced graphene oxide (T/RGO) hybrids were synthesized via an in situ solvothermal process and used as electron acceptor/transport mediators in mesoscopic perovskite solar cells based on soluble CuBuPc as a hole transporter and on graphene oxide (GO) as a buffer layer. The impact of the RGO content on the optoelectronic properties of T/RGO hybrids and on the solar cell performance was studied, suggesting improved electron transport characteristics and photovoltaic parameters. An enhanced electron lifetime and recombination resistance led to an increase in the short circuit current density, open circuit voltage and fill factor. The device based on a T/RGO mesoporous layer with an optimal RGO content of 0.2 wt% showed 22% higher photoconversion efficiency and higher stability compared with pristine TiO₂-based devices.

Original language	English
Pages (from-to)	2388-2395
Number of pages	8
Journal	Physical Chemistry Chemical Physics
Volume	20
Issue number	4
Early online date	20 Dec 2017
DOIs	https://doi.org/10.1039/c7cp04538g
Publication status	Published - 28 Jan 2018

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1039/c7cp04538g

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title = "Improvement of the photovoltaic parameters of perovskite solar cells using a reduced-graphene-oxide-modified titania layer and soluble copper phthalocyanine as a hole transporter",

abstract = "Functional perovskite solar cells can be made by using a simple, inexpensive and stable soluble tetra-n-butyl-substituted copper phthalocyanine (CuBuPc) as a hole transporter. In the present study, TiO2/reduced graphene oxide (T/RGO) hybrids were synthesized via an in situ solvothermal process and used as electron acceptor/transport mediators in mesoscopic perovskite solar cells based on soluble CuBuPc as a hole transporter and on graphene oxide (GO) as a buffer layer. The impact of the RGO content on the optoelectronic properties of T/RGO hybrids and on the solar cell performance was studied, suggesting improved electron transport characteristics and photovoltaic parameters. An enhanced electron lifetime and recombination resistance led to an increase in the short circuit current density, open circuit voltage and fill factor. The device based on a T/RGO mesoporous layer with an optimal RGO content of 0.2 wt\% showed 22\% higher photoconversion efficiency and higher stability compared with pristine TiO2-based devices.",

author = "Esmaiel Nouri and Mohammadi, \{Mohammad Reza\} and Xu, \{Zong Xiang\} and Vassilios Dracopoulos and Panagiotis Lianos",

year = "2018",

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doi = "10.1039/c7cp04538g",

language = "English",

volume = "20",

pages = "2388--2395",

journal = "Physical Chemistry Chemical Physics",

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publisher = "Royal Society of Chemistry",

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Improvement of the photovoltaic parameters of perovskite solar cells using a reduced-graphene-oxide-modified titania layer and soluble copper phthalocyanine as a hole transporter. / Nouri, Esmaiel; Mohammadi, Mohammad Reza (Lead / Corresponding author); Xu, Zong Xiang et al.
In: Physical Chemistry Chemical Physics, Vol. 20, No. 4, 28.01.2018, p. 2388-2395.

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

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T1 - Improvement of the photovoltaic parameters of perovskite solar cells using a reduced-graphene-oxide-modified titania layer and soluble copper phthalocyanine as a hole transporter

AU - Nouri, Esmaiel

AU - Mohammadi, Mohammad Reza

AU - Xu, Zong Xiang

AU - Dracopoulos, Vassilios

AU - Lianos, Panagiotis

PY - 2018/1/28

Y1 - 2018/1/28

N2 - Functional perovskite solar cells can be made by using a simple, inexpensive and stable soluble tetra-n-butyl-substituted copper phthalocyanine (CuBuPc) as a hole transporter. In the present study, TiO2/reduced graphene oxide (T/RGO) hybrids were synthesized via an in situ solvothermal process and used as electron acceptor/transport mediators in mesoscopic perovskite solar cells based on soluble CuBuPc as a hole transporter and on graphene oxide (GO) as a buffer layer. The impact of the RGO content on the optoelectronic properties of T/RGO hybrids and on the solar cell performance was studied, suggesting improved electron transport characteristics and photovoltaic parameters. An enhanced electron lifetime and recombination resistance led to an increase in the short circuit current density, open circuit voltage and fill factor. The device based on a T/RGO mesoporous layer with an optimal RGO content of 0.2 wt% showed 22% higher photoconversion efficiency and higher stability compared with pristine TiO2-based devices.

AB - Functional perovskite solar cells can be made by using a simple, inexpensive and stable soluble tetra-n-butyl-substituted copper phthalocyanine (CuBuPc) as a hole transporter. In the present study, TiO2/reduced graphene oxide (T/RGO) hybrids were synthesized via an in situ solvothermal process and used as electron acceptor/transport mediators in mesoscopic perovskite solar cells based on soluble CuBuPc as a hole transporter and on graphene oxide (GO) as a buffer layer. The impact of the RGO content on the optoelectronic properties of T/RGO hybrids and on the solar cell performance was studied, suggesting improved electron transport characteristics and photovoltaic parameters. An enhanced electron lifetime and recombination resistance led to an increase in the short circuit current density, open circuit voltage and fill factor. The device based on a T/RGO mesoporous layer with an optimal RGO content of 0.2 wt% showed 22% higher photoconversion efficiency and higher stability compared with pristine TiO2-based devices.

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Improvement of the photovoltaic parameters of perovskite solar cells using a reduced-graphene-oxide-modified titania layer and soluble copper phthalocyanine as a hole transporter

Abstract

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