A strategy of designing near-infrared porphyrin-based non-fullerene acceptors for panchromatic organic solar cells

Wei Chih Wang; You Wei Lin; Shih Hao Peng; Chih Ting Chuang; Chia-Chih Chang; Chain-Shu Hsu

doi:10.1016/j.orgel.2020.105899

A strategy of designing near-infrared porphyrin-based non-fullerene acceptors for panchromatic organic solar cells

Wei Chih Wang, You Wei Lin, Shih Hao Peng, Chih Ting Chuang, Chia-Chih Chang, Chain-Shu Hsu^*

^*Corresponding author for this work

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

16 Scopus citations

Abstract

Two porphyrin-based non-fullerene acceptors (NFAs), PORTIC and PORTFIC, were synthesized to enable panchromatic absorption for high performance organic solar cells (OSCs). An inverted organic solar cell architecture of ITO/ZnO/PTB7-Th:Porphyrin-based NFAs/MoO₃/Ag is used. With pyridine as an additive of which further affords optimum morphology for charge separation transport, the power conversion efficiency (PCE) was improved by 40.4% and 67.8% for PORTIC and PORTFIC, respectively, relative to devices fabricated without pyridine. Two-dimensional (2D) grazing-incidence wide-angle X-ray scattering (GIWAXS) shows that the optimized active layer exhibits face-on orientation. Moreover, the photoluminescence quenching experiments reveal that more effective charge transfer between the donor and acceptor is achieved upon addition of pyridine. PTB7-Th:PORTFIC device affords a V_OC of 0.74 V, a J_SC of 11.27 mA cm⁻², a FF of 51.29% and highest PCE of 4.28%.

Original language	English
Article number	105899
Journal	Organic Electronics
Volume	86
DOIs	https://doi.org/10.1016/j.orgel.2020.105899
State	Published - Nov 2020

Keywords

Non-fullerene acceptors
Organic solar cells
Panchromatic absorption and binary bulk heterojunctions
Porphyrins

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title = "A strategy of designing near-infrared porphyrin-based non-fullerene acceptors for panchromatic organic solar cells",

abstract = "Two porphyrin-based non-fullerene acceptors (NFAs), PORTIC and PORTFIC, were synthesized to enable panchromatic absorption for high performance organic solar cells (OSCs). An inverted organic solar cell architecture of ITO/ZnO/PTB7-Th:Porphyrin-based NFAs/MoO3/Ag is used. With pyridine as an additive of which further affords optimum morphology for charge separation transport, the power conversion efficiency (PCE) was improved by 40.4% and 67.8% for PORTIC and PORTFIC, respectively, relative to devices fabricated without pyridine. Two-dimensional (2D) grazing-incidence wide-angle X-ray scattering (GIWAXS) shows that the optimized active layer exhibits face-on orientation. Moreover, the photoluminescence quenching experiments reveal that more effective charge transfer between the donor and acceptor is achieved upon addition of pyridine. PTB7-Th:PORTFIC device affords a VOC of 0.74 V, a JSC of 11.27 mA cm−2, a FF of 51.29% and highest PCE of 4.28%.",

keywords = "Non-fullerene acceptors, Organic solar cells, Panchromatic absorption and binary bulk heterojunctions, Porphyrins",

author = "Wang, {Wei Chih} and Lin, {You Wei} and Peng, {Shih Hao} and Chuang, {Chih Ting} and Chia-Chih Chang and Chain-Shu Hsu",

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year = "2020",

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doi = "10.1016/j.orgel.2020.105899",

language = "English",

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AU - Wang, Wei Chih

AU - Lin, You Wei

AU - Peng, Shih Hao

AU - Chuang, Chih Ting

AU - Chang, Chia-Chih

AU - Hsu, Chain-Shu

PY - 2020/11

Y1 - 2020/11

N2 - Two porphyrin-based non-fullerene acceptors (NFAs), PORTIC and PORTFIC, were synthesized to enable panchromatic absorption for high performance organic solar cells (OSCs). An inverted organic solar cell architecture of ITO/ZnO/PTB7-Th:Porphyrin-based NFAs/MoO3/Ag is used. With pyridine as an additive of which further affords optimum morphology for charge separation transport, the power conversion efficiency (PCE) was improved by 40.4% and 67.8% for PORTIC and PORTFIC, respectively, relative to devices fabricated without pyridine. Two-dimensional (2D) grazing-incidence wide-angle X-ray scattering (GIWAXS) shows that the optimized active layer exhibits face-on orientation. Moreover, the photoluminescence quenching experiments reveal that more effective charge transfer between the donor and acceptor is achieved upon addition of pyridine. PTB7-Th:PORTFIC device affords a VOC of 0.74 V, a JSC of 11.27 mA cm−2, a FF of 51.29% and highest PCE of 4.28%.

AB - Two porphyrin-based non-fullerene acceptors (NFAs), PORTIC and PORTFIC, were synthesized to enable panchromatic absorption for high performance organic solar cells (OSCs). An inverted organic solar cell architecture of ITO/ZnO/PTB7-Th:Porphyrin-based NFAs/MoO3/Ag is used. With pyridine as an additive of which further affords optimum morphology for charge separation transport, the power conversion efficiency (PCE) was improved by 40.4% and 67.8% for PORTIC and PORTFIC, respectively, relative to devices fabricated without pyridine. Two-dimensional (2D) grazing-incidence wide-angle X-ray scattering (GIWAXS) shows that the optimized active layer exhibits face-on orientation. Moreover, the photoluminescence quenching experiments reveal that more effective charge transfer between the donor and acceptor is achieved upon addition of pyridine. PTB7-Th:PORTFIC device affords a VOC of 0.74 V, a JSC of 11.27 mA cm−2, a FF of 51.29% and highest PCE of 4.28%.

KW - Non-fullerene acceptors

KW - Organic solar cells

KW - Panchromatic absorption and binary bulk heterojunctions

KW - Porphyrins

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A strategy of designing near-infrared porphyrin-based non-fullerene acceptors for panchromatic organic solar cells

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