Enhanced light-harvesting of benzodithiophene conjugated porphyrin electron donors in organic solar cells

Xuan Zhou; Wei Tang; Pengqing Bi; Zhixin Liu; Wenhui Lu; Xingzhu Wang; Xiaotao Hao; Rick Wai Kwok Wong; Xunjin Zhu

doi:10.1039/c8tc04495c

Enhanced light-harvesting of benzodithiophene conjugated porphyrin electron donors in organic solar cells

Xuan Zhou, Wei Tang, Pengqing Bi, Zhixin Liu, Wenhui Lu, Xingzhu Wang^*, Xiaotao Hao, Rick Wai Kwok Wong, Xunjin Zhu^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

11 Citations (Scopus)

Abstract

To address the intrinsic issue of conventional porphyrin derivatives with a deficient absorption between Soret and Q bands, we designed and synthesized two porphyrin molecules (BDTP-1 and BDTP-2) bearing a meso-alkyl substituted porphyrin core, benzodithiohene (BDT) ethynylene π-bridge and end-capping ethylrhodanine derivatives. Apart from the characteristic Soret and Q bands of porphyrin macrocycle, an extra peak (521 nm for BDTP-1 and 536 nm for BDTP-2) was derived from the BDT units. Using the porphyrin small molecules as electron donors and PC ₇₁ BM as an electron acceptor, the devices show broad spectral photocurrent generation with a significant contribution from greenlight-harvesting (490-550 nm), resulting in high performances with PCEs up to 7.97%.

Original language	English
Pages (from-to)	380-386
Number of pages	7
Journal	Journal of Materials Chemistry C
Volume	7
Issue number	2
Early online date	1 Dec 2018
DOIs	https://doi.org/10.1039/c8tc04495c
Publication status	Published - 14 Jan 2019

Scopus Subject Areas

Chemistry(all)
Materials Chemistry

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title = "Enhanced light-harvesting of benzodithiophene conjugated porphyrin electron donors in organic solar cells",

abstract = " To address the intrinsic issue of conventional porphyrin derivatives with a deficient absorption between Soret and Q bands, we designed and synthesized two porphyrin molecules (BDTP-1 and BDTP-2) bearing a meso-alkyl substituted porphyrin core, benzodithiohene (BDT) ethynylene π-bridge and end-capping ethylrhodanine derivatives. Apart from the characteristic Soret and Q bands of porphyrin macrocycle, an extra peak (521 nm for BDTP-1 and 536 nm for BDTP-2) was derived from the BDT units. Using the porphyrin small molecules as electron donors and PC 71 BM as an electron acceptor, the devices show broad spectral photocurrent generation with a significant contribution from greenlight-harvesting (490-550 nm), resulting in high performances with PCEs up to 7.97%.",

author = "Xuan Zhou and Wei Tang and Pengqing Bi and Zhixin Liu and Wenhui Lu and Xingzhu Wang and Xiaotao Hao and Wong, {Rick Wai Kwok} and Xunjin Zhu",

note = "Funding Information: This study was supported by the Hong Kong Research Grants Council (HKBU 22304115-ECS and C5015-15GF), Areas of Excellence Scheme ([AoE/P-03/08]), Hong Kong Baptist University (FRG2/13-14/ 083), the National Natural Science Foundation of China (51473139, 91333206, 20974091, and 61631166001), the Science, Technology and Innovation of Shenzhen (JCYJ20150630164505504), the Innovation Platform Open Foundation of University of Hunan Province (14K092) and Hunan 2011 Collaborative Innovation Center of Chemical Engineering & Technology with Environmental Benignity and Effective Resource Utilization.",

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doi = "10.1039/c8tc04495c",

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T1 - Enhanced light-harvesting of benzodithiophene conjugated porphyrin electron donors in organic solar cells

AU - Zhou, Xuan

AU - Tang, Wei

AU - Bi, Pengqing

AU - Liu, Zhixin

AU - Lu, Wenhui

AU - Wang, Xingzhu

AU - Hao, Xiaotao

AU - Wong, Rick Wai Kwok

AU - Zhu, Xunjin

N1 - Funding Information: This study was supported by the Hong Kong Research Grants Council (HKBU 22304115-ECS and C5015-15GF), Areas of Excellence Scheme ([AoE/P-03/08]), Hong Kong Baptist University (FRG2/13-14/ 083), the National Natural Science Foundation of China (51473139, 91333206, 20974091, and 61631166001), the Science, Technology and Innovation of Shenzhen (JCYJ20150630164505504), the Innovation Platform Open Foundation of University of Hunan Province (14K092) and Hunan 2011 Collaborative Innovation Center of Chemical Engineering & Technology with Environmental Benignity and Effective Resource Utilization.

PY - 2019/1/14

Y1 - 2019/1/14

N2 - To address the intrinsic issue of conventional porphyrin derivatives with a deficient absorption between Soret and Q bands, we designed and synthesized two porphyrin molecules (BDTP-1 and BDTP-2) bearing a meso-alkyl substituted porphyrin core, benzodithiohene (BDT) ethynylene π-bridge and end-capping ethylrhodanine derivatives. Apart from the characteristic Soret and Q bands of porphyrin macrocycle, an extra peak (521 nm for BDTP-1 and 536 nm for BDTP-2) was derived from the BDT units. Using the porphyrin small molecules as electron donors and PC 71 BM as an electron acceptor, the devices show broad spectral photocurrent generation with a significant contribution from greenlight-harvesting (490-550 nm), resulting in high performances with PCEs up to 7.97%.

AB - To address the intrinsic issue of conventional porphyrin derivatives with a deficient absorption between Soret and Q bands, we designed and synthesized two porphyrin molecules (BDTP-1 and BDTP-2) bearing a meso-alkyl substituted porphyrin core, benzodithiohene (BDT) ethynylene π-bridge and end-capping ethylrhodanine derivatives. Apart from the characteristic Soret and Q bands of porphyrin macrocycle, an extra peak (521 nm for BDTP-1 and 536 nm for BDTP-2) was derived from the BDT units. Using the porphyrin small molecules as electron donors and PC 71 BM as an electron acceptor, the devices show broad spectral photocurrent generation with a significant contribution from greenlight-harvesting (490-550 nm), resulting in high performances with PCEs up to 7.97%.

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Enhanced light-harvesting of benzodithiophene conjugated porphyrin electron donors in organic solar cells

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