Enhanced fill factor for normal n-i-p planar heterojunction and mesoscopic perovskite solar cells using ruthenium-doped TiO2 electron transporting layer

Sawanta S. Mali; Jyoti V. Patil; Pravin S. Shinde; Chang Kook Hong

doi:10.1002/pip.3352

Enhanced fill factor for normal n-i-p planar heterojunction and mesoscopic perovskite solar cells using ruthenium-doped TiO₂ electron transporting layer

Sawanta S. Mali^*, Jyoti V. Patil, Pravin S. Shinde, Chang Kook Hong^*

^*Corresponding author for this work

Pure And Applied Chemistry

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

5 Citations (Scopus)

Abstract

Perovskite solar cells (PSCs) fabricated with a normal mesoscopic negative-intrinsic-positive (n-i-p) device structure have shown a great promise for further developments ever since their enhanced performance with high power conversion efficiency (PCE, 25.2%) and excellent reproducibility. The electron transporting layer (ETL) employed in such PSCs has been a critical component for improving their performance. The present work focuses on the synthesis of high-quality Ru-doped compact TiO₂ (c-TiO₂) ETLs (Ru:c-TiO₂) by a simple spin-coating technique. Further, the role of Ru⁴⁺ cation doping in c-TiO₂ is discussed in detail. A systematic study revealed that the Ru-doping not only significantly influences the open-circuit voltage (V_oc), current density (J_sc), and fill factor (FF) but also suppresses the charge recombination in the perovskite devices. The PSCs prepared using Ru-c-TiO₂ ETLs with optimum Ru-doping content exhibited PCEs of 19.48% for planar and 20.87% for mesoscopic device architecture with enhanced photovoltage. Additionally, the fabricated PSC devices based on 1.5% Ru:c-TiO₂ ETLs exhibited air stability over 200 days, which is much higher than that of a control device.

Original language	English
Pages (from-to)	159-171
Number of pages	13
Journal	Progress in Photovoltaics: Research and Applications
Volume	29
Issue number	2
Early online date	8 Oct 2020
DOIs	https://doi.org/10.1002/pip.3352
Publication status	Published - Feb 2021

Funding

This work was supported by the Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2016H1D3A1909289) for an outstanding overseas young researcher. This research is also supported by the National Research Foundation of Korea (NRF) (2020R1A2C2004880). This work was also supported by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology (2018R1A6A1A03024334). This work was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2018R1C1B6008218).

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

doped electron transporting layers
n-i-p-type perovskite solar cells
stability

Access to Document

10.1002/pip.3352

Cite this

@article{ca85a7c5c5e24fee94bb995f980eb11c,

title = "Enhanced fill factor for normal n-i-p planar heterojunction and mesoscopic perovskite solar cells using ruthenium-doped TiO2 electron transporting layer",

abstract = "Perovskite solar cells (PSCs) fabricated with a normal mesoscopic negative-intrinsic-positive (n-i-p) device structure have shown a great promise for further developments ever since their enhanced performance with high power conversion efficiency (PCE, 25.2\%) and excellent reproducibility. The electron transporting layer (ETL) employed in such PSCs has been a critical component for improving their performance. The present work focuses on the synthesis of high-quality Ru-doped compact TiO2 (c-TiO2) ETLs (Ru:c-TiO2) by a simple spin-coating technique. Further, the role of Ru4+ cation doping in c-TiO2 is discussed in detail. A systematic study revealed that the Ru-doping not only significantly influences the open-circuit voltage (Voc), current density (Jsc), and fill factor (FF) but also suppresses the charge recombination in the perovskite devices. The PSCs prepared using Ru-c-TiO2 ETLs with optimum Ru-doping content exhibited PCEs of 19.48\% for planar and 20.87\% for mesoscopic device architecture with enhanced photovoltage. Additionally, the fabricated PSC devices based on 1.5\% Ru:c-TiO2 ETLs exhibited air stability over 200 days, which is much higher than that of a control device.",

keywords = "doped electron transporting layers, n-i-p-type perovskite solar cells, stability",

author = "Mali, \{Sawanta S.\} and Patil, \{Jyoti V.\} and Shinde, \{Pravin S.\} and Hong, \{Chang Kook\}",

year = "2021",

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doi = "10.1002/pip.3352",

language = "English",

volume = "29",

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Enhanced fill factor for normal n-i-p planar heterojunction and mesoscopic perovskite solar cells using ruthenium-doped TiO₂ electron transporting layer. / Mali, Sawanta S.; Patil, Jyoti V.; Shinde, Pravin S. et al.
In: Progress in Photovoltaics: Research and Applications, Vol. 29, No. 2, 02.2021, p. 159-171.

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

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T1 - Enhanced fill factor for normal n-i-p planar heterojunction and mesoscopic perovskite solar cells using ruthenium-doped TiO2 electron transporting layer

AU - Mali, Sawanta S.

AU - Patil, Jyoti V.

AU - Shinde, Pravin S.

AU - Hong, Chang Kook

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N2 - Perovskite solar cells (PSCs) fabricated with a normal mesoscopic negative-intrinsic-positive (n-i-p) device structure have shown a great promise for further developments ever since their enhanced performance with high power conversion efficiency (PCE, 25.2%) and excellent reproducibility. The electron transporting layer (ETL) employed in such PSCs has been a critical component for improving their performance. The present work focuses on the synthesis of high-quality Ru-doped compact TiO2 (c-TiO2) ETLs (Ru:c-TiO2) by a simple spin-coating technique. Further, the role of Ru4+ cation doping in c-TiO2 is discussed in detail. A systematic study revealed that the Ru-doping not only significantly influences the open-circuit voltage (Voc), current density (Jsc), and fill factor (FF) but also suppresses the charge recombination in the perovskite devices. The PSCs prepared using Ru-c-TiO2 ETLs with optimum Ru-doping content exhibited PCEs of 19.48% for planar and 20.87% for mesoscopic device architecture with enhanced photovoltage. Additionally, the fabricated PSC devices based on 1.5% Ru:c-TiO2 ETLs exhibited air stability over 200 days, which is much higher than that of a control device.

AB - Perovskite solar cells (PSCs) fabricated with a normal mesoscopic negative-intrinsic-positive (n-i-p) device structure have shown a great promise for further developments ever since their enhanced performance with high power conversion efficiency (PCE, 25.2%) and excellent reproducibility. The electron transporting layer (ETL) employed in such PSCs has been a critical component for improving their performance. The present work focuses on the synthesis of high-quality Ru-doped compact TiO2 (c-TiO2) ETLs (Ru:c-TiO2) by a simple spin-coating technique. Further, the role of Ru4+ cation doping in c-TiO2 is discussed in detail. A systematic study revealed that the Ru-doping not only significantly influences the open-circuit voltage (Voc), current density (Jsc), and fill factor (FF) but also suppresses the charge recombination in the perovskite devices. The PSCs prepared using Ru-c-TiO2 ETLs with optimum Ru-doping content exhibited PCEs of 19.48% for planar and 20.87% for mesoscopic device architecture with enhanced photovoltage. Additionally, the fabricated PSC devices based on 1.5% Ru:c-TiO2 ETLs exhibited air stability over 200 days, which is much higher than that of a control device.

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