Porphyrin-based thick-film bulk-heterojunction solar cells for indoor light harvesting

Hang Yin; Song Chen; Sin Hang Cheung; Ho Wa Li; Yuemin Xie; Sai Wing Tsang; Xunjin Zhu; Shu Kong So

doi:10.1039/c8tc02838a

Porphyrin-based thick-film bulk-heterojunction solar cells for indoor light harvesting

Hang Yin, Song Chen, Sin Hang Cheung, Ho Wa Li, Yuemin Xie, Sai Wing Tsang, Xunjin Zhu^*, Shu Kong So^*

^*Corresponding author for this work

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

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Abstract

A porphyrin-based donor material P1 is used to fabricate bulk-heterojunction solar cells harvesting room light. P1 consists of a porphyrin ring linked by two ethylrhodanine end caps via phenylene ethynylene bridges. Organic photovoltaic (OPV) cells using P1 as the donor exhibit significantly improved performances under indoor illumination compared to 1 sun conditions. For P1:PC₇₁BM cells, an optimized-PCE of 19.2% was achieved under a 300 lux illumination of a 3000 K LED tube. Besides high PCEs, the porphyrin-based devices also exhibit enhanced OPV performances in thick film regions (∼200 nm) compared to a control BHJ cell using PCDTBT:PC₇₁BM. The thick-film P1-based device shows an overall PCE of 18.2%. The origins of the thickness independent OPV performances were examined, and they can be attributed to the low electronic disorders of these materials when compared to their polymer counterparts.

Original language	English
Pages (from-to)	9111-9118
Number of pages	8
Journal	Journal of Materials Chemistry C
Volume	6
Issue number	34
Early online date	17 Jul 2018
DOIs	https://doi.org/10.1039/c8tc02838a
Publication status	Published - 14 Sept 2018

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Chemistry(all)
Materials Chemistry

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title = "Porphyrin-based thick-film bulk-heterojunction solar cells for indoor light harvesting",

abstract = "A porphyrin-based donor material P1 is used to fabricate bulk-heterojunction solar cells harvesting room light. P1 consists of a porphyrin ring linked by two ethylrhodanine end caps via phenylene ethynylene bridges. Organic photovoltaic (OPV) cells using P1 as the donor exhibit significantly improved performances under indoor illumination compared to 1 sun conditions. For P1:PC71BM cells, an optimized-PCE of 19.2% was achieved under a 300 lux illumination of a 3000 K LED tube. Besides high PCEs, the porphyrin-based devices also exhibit enhanced OPV performances in thick film regions (∼200 nm) compared to a control BHJ cell using PCDTBT:PC71BM. The thick-film P1-based device shows an overall PCE of 18.2%. The origins of the thickness independent OPV performances were examined, and they can be attributed to the low electronic disorders of these materials when compared to their polymer counterparts.",

author = "Hang Yin and Song Chen and Cheung, {Sin Hang} and Li, {Ho Wa} and Yuemin Xie and Tsang, {Sai Wing} and Xunjin Zhu and So, {Shu Kong}",

note = "Funding Information: Supports for this research by the Research Committee of HKBU under grant # RC-ICRS/15-16/4ASSK, the HKBU Faculty Research Grant FRG2/17-18/078 are gratefully acknowledged. XJ Zhu acknowledges support from the Hong Kong Research Grants Council (HKBU 22304115-ECS), Areas of Excellence Scheme ([AoE/P-03/08]), Hong Kong Baptist University (FRG1/ 15-16/052, FRG2/16-17/024). Prof. S. W. Tsang acknowledges the CityU 11212216 for funding support.",

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AU - Yin, Hang

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AU - Tsang, Sai Wing

AU - Zhu, Xunjin

AU - So, Shu Kong

N1 - Funding Information: Supports for this research by the Research Committee of HKBU under grant # RC-ICRS/15-16/4ASSK, the HKBU Faculty Research Grant FRG2/17-18/078 are gratefully acknowledged. XJ Zhu acknowledges support from the Hong Kong Research Grants Council (HKBU 22304115-ECS), Areas of Excellence Scheme ([AoE/P-03/08]), Hong Kong Baptist University (FRG1/ 15-16/052, FRG2/16-17/024). Prof. S. W. Tsang acknowledges the CityU 11212216 for funding support.

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N2 - A porphyrin-based donor material P1 is used to fabricate bulk-heterojunction solar cells harvesting room light. P1 consists of a porphyrin ring linked by two ethylrhodanine end caps via phenylene ethynylene bridges. Organic photovoltaic (OPV) cells using P1 as the donor exhibit significantly improved performances under indoor illumination compared to 1 sun conditions. For P1:PC71BM cells, an optimized-PCE of 19.2% was achieved under a 300 lux illumination of a 3000 K LED tube. Besides high PCEs, the porphyrin-based devices also exhibit enhanced OPV performances in thick film regions (∼200 nm) compared to a control BHJ cell using PCDTBT:PC71BM. The thick-film P1-based device shows an overall PCE of 18.2%. The origins of the thickness independent OPV performances were examined, and they can be attributed to the low electronic disorders of these materials when compared to their polymer counterparts.

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Porphyrin-based thick-film bulk-heterojunction solar cells for indoor light harvesting

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