Highly Efficient Benzo-Furan-Based Electron Acceptor Derived from One-Pot Synthesis for High-Performance Bulk Heterojunction Solar Cells

P. Nagarjuna; Anirban Bagui; Ravulakollu Srinivasa Rao; Vinay Gupta; Surya Prakash Singh

doi:10.1021/acsaem.8b01064

Highly Efficient Benzo-Furan-Based Electron Acceptor Derived from One-Pot Synthesis for High-Performance Bulk Heterojunction Solar Cells

P. Nagarjuna
, Anirban Bagui
, Ravulakollu Srinivasa Rao
, Vinay Gupta
, Surya Prakash Singh

Physics

Indian Institute of Chemical Technology
Academy of Scientific and Innovative Research (AcSIR)

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

6 Scopus citations

Abstract

A new benzofuran-derived fulleropyrrolidine derivative denoted as FB-C₆₀ is synthesized by Prato single step synthetic protocol and successfully utilized as an electron acceptor in the bulk heterojunction organic solar cells (OSCs). The molecule possesses significant optoelectronic and redox properties, which are compatible with popular polymer donors. The OSCs constructed from PTB7/FB-C₆₀ blends yielded a highest power conversion efficiency (PCE) of 8.1%. The champion device that was fabricated from PTB7-Th/FB-C₆₀ bulk-composite film demonstrated a PCE of 9.6%, open circuit voltage of 0.83 V, series resistance of 3.3 Ω·cm^-2 and 75.1% of external quantum efficiency at 640 nm wavelength. A promising electron mobility of 1.2 × 10^-3 cm² V^-1 s^-1 of FB-C₆₀ is observed in the fabricated device. FB-C₆₀ shows the potential to positively replace the conventional PCBM to fabricate "cost-effective" high-performance OSCs.

Original language	British English
Pages (from-to)	1019-1025
Number of pages	7
Journal	ACS Applied Energy Materials
Volume	2
Issue number	2
DOIs	https://doi.org/10.1021/acsaem.8b01064
State	Published - 25 Feb 2019

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SDG 7 Affordable and Clean Energy

Keywords

benzofuran-based electron acceptor
bulk-heterojunction organic solar cells
electron mobility
high efficiency
one-pot synthesis

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title = "Highly Efficient Benzo-Furan-Based Electron Acceptor Derived from One-Pot Synthesis for High-Performance Bulk Heterojunction Solar Cells",

abstract = "A new benzofuran-derived fulleropyrrolidine derivative denoted as FB-C60 is synthesized by Prato single step synthetic protocol and successfully utilized as an electron acceptor in the bulk heterojunction organic solar cells (OSCs). The molecule possesses significant optoelectronic and redox properties, which are compatible with popular polymer donors. The OSCs constructed from PTB7/FB-C60 blends yielded a highest power conversion efficiency (PCE) of 8.1\%. The champion device that was fabricated from PTB7-Th/FB-C60 bulk-composite film demonstrated a PCE of 9.6\%, open circuit voltage of 0.83 V, series resistance of 3.3 Ω·cm-2 and 75.1\% of external quantum efficiency at 640 nm wavelength. A promising electron mobility of 1.2 × 10-3 cm2 V-1 s-1 of FB-C60 is observed in the fabricated device. FB-C60 shows the potential to positively replace the conventional PCBM to fabricate {"}cost-effective{"} high-performance OSCs.",

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author = "P. Nagarjuna and Anirban Bagui and Rao, \{Ravulakollu Srinivasa\} and Vinay Gupta and Singh, \{Surya Prakash\}",

note = "Funding Information: P.N. thanks the CSIR, Government of India for providing SRF. S.P.S. gratefully acknowledges SUNRISE and Indo-Poland Project DST/INT/POL/P-26/2016 for financial support. Publisher Copyright: {\textcopyright} Copyright 2019 American Chemical Society.",

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AU - Rao, Ravulakollu Srinivasa

AU - Gupta, Vinay

AU - Singh, Surya Prakash

N1 - Funding Information: P.N. thanks the CSIR, Government of India for providing SRF. S.P.S. gratefully acknowledges SUNRISE and Indo-Poland Project DST/INT/POL/P-26/2016 for financial support. Publisher Copyright: © Copyright 2019 American Chemical Society.

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N2 - A new benzofuran-derived fulleropyrrolidine derivative denoted as FB-C60 is synthesized by Prato single step synthetic protocol and successfully utilized as an electron acceptor in the bulk heterojunction organic solar cells (OSCs). The molecule possesses significant optoelectronic and redox properties, which are compatible with popular polymer donors. The OSCs constructed from PTB7/FB-C60 blends yielded a highest power conversion efficiency (PCE) of 8.1%. The champion device that was fabricated from PTB7-Th/FB-C60 bulk-composite film demonstrated a PCE of 9.6%, open circuit voltage of 0.83 V, series resistance of 3.3 Ω·cm-2 and 75.1% of external quantum efficiency at 640 nm wavelength. A promising electron mobility of 1.2 × 10-3 cm2 V-1 s-1 of FB-C60 is observed in the fabricated device. FB-C60 shows the potential to positively replace the conventional PCBM to fabricate "cost-effective" high-performance OSCs.

AB - A new benzofuran-derived fulleropyrrolidine derivative denoted as FB-C60 is synthesized by Prato single step synthetic protocol and successfully utilized as an electron acceptor in the bulk heterojunction organic solar cells (OSCs). The molecule possesses significant optoelectronic and redox properties, which are compatible with popular polymer donors. The OSCs constructed from PTB7/FB-C60 blends yielded a highest power conversion efficiency (PCE) of 8.1%. The champion device that was fabricated from PTB7-Th/FB-C60 bulk-composite film demonstrated a PCE of 9.6%, open circuit voltage of 0.83 V, series resistance of 3.3 Ω·cm-2 and 75.1% of external quantum efficiency at 640 nm wavelength. A promising electron mobility of 1.2 × 10-3 cm2 V-1 s-1 of FB-C60 is observed in the fabricated device. FB-C60 shows the potential to positively replace the conventional PCBM to fabricate "cost-effective" high-performance OSCs.

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KW - electron mobility

KW - high efficiency

KW - one-pot synthesis

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Highly Efficient Benzo-Furan-Based Electron Acceptor Derived from One-Pot Synthesis for High-Performance Bulk Heterojunction Solar Cells

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