Artificial light-harvesting n-type porphyrin for panchromatic organic photovoltaic devices

Wisnu Tantyo Hadmojo, Dajeong Yim, Havid Aqoma, Du Yeol Ryu, Tae Joo Shin, Hyun Woo Kim, Eojin Hwang, Woo Dong Jang, In Hwan Jung, Sung Yeon Jang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A near-infrared-harvesting n-type porphyrin-based acceptor for organic photovoltaics (OPVs) was developed. The n-type acceptor, PDI-PZn-PDI, was designed by connecting a zinc porphyrin (PZn) core to two perylenediimide (PDI) wings through ethyne bridges. A narrow bandgap of 1.27 eV was achieved through the extended π-conjugation and intramolecular charge transfer between the strongly electron-donating PZn core and the electron-accepting PDI wings. A bulk heterojunction (BHJ) structured photovoltaic device fabricated from PDI-PZn-PDI with PTB7-Th exhibited panchromatic photon-to-current conversion from 350 to 900 nm. A power conversion efficiency of 5.25% with a remarkably low Eloss of 0.54 eV was achieved by optimizing the nanomorphology of the BHJ films by adding pyridine and by controlling the ZnO/BHJ interfacial properties.

Original languageEnglish
Pages (from-to)5095-5100
Number of pages6
JournalChemical Science
Volume8
Issue number7
DOIs
Publication statusPublished - 2017 Jan 1

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Porphyrins
Heterojunctions
Acetylene
Electrons
Conversion efficiency
perylenediimide
Charge transfer
Energy gap
Photons
Infrared radiation

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Hadmojo, W. T., Yim, D., Aqoma, H., Ryu, D. Y., Shin, T. J., Kim, H. W., ... Jang, S. Y. (2017). Artificial light-harvesting n-type porphyrin for panchromatic organic photovoltaic devices. Chemical Science, 8(7), 5095-5100. https://doi.org/10.1039/c7sc01275f
Hadmojo, Wisnu Tantyo ; Yim, Dajeong ; Aqoma, Havid ; Ryu, Du Yeol ; Shin, Tae Joo ; Kim, Hyun Woo ; Hwang, Eojin ; Jang, Woo Dong ; Jung, In Hwan ; Jang, Sung Yeon. / Artificial light-harvesting n-type porphyrin for panchromatic organic photovoltaic devices. In: Chemical Science. 2017 ; Vol. 8, No. 7. pp. 5095-5100.
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Hadmojo, WT, Yim, D, Aqoma, H, Ryu, DY, Shin, TJ, Kim, HW, Hwang, E, Jang, WD, Jung, IH & Jang, SY 2017, 'Artificial light-harvesting n-type porphyrin for panchromatic organic photovoltaic devices', Chemical Science, vol. 8, no. 7, pp. 5095-5100. https://doi.org/10.1039/c7sc01275f

Artificial light-harvesting n-type porphyrin for panchromatic organic photovoltaic devices. / Hadmojo, Wisnu Tantyo; Yim, Dajeong; Aqoma, Havid; Ryu, Du Yeol; Shin, Tae Joo; Kim, Hyun Woo; Hwang, Eojin; Jang, Woo Dong; Jung, In Hwan; Jang, Sung Yeon.

In: Chemical Science, Vol. 8, No. 7, 01.01.2017, p. 5095-5100.

Research output: Contribution to journalArticle

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AU - Yim, Dajeong

AU - Aqoma, Havid

AU - Ryu, Du Yeol

AU - Shin, Tae Joo

AU - Kim, Hyun Woo

AU - Hwang, Eojin

AU - Jang, Woo Dong

AU - Jung, In Hwan

AU - Jang, Sung Yeon

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N2 - A near-infrared-harvesting n-type porphyrin-based acceptor for organic photovoltaics (OPVs) was developed. The n-type acceptor, PDI-PZn-PDI, was designed by connecting a zinc porphyrin (PZn) core to two perylenediimide (PDI) wings through ethyne bridges. A narrow bandgap of 1.27 eV was achieved through the extended π-conjugation and intramolecular charge transfer between the strongly electron-donating PZn core and the electron-accepting PDI wings. A bulk heterojunction (BHJ) structured photovoltaic device fabricated from PDI-PZn-PDI with PTB7-Th exhibited panchromatic photon-to-current conversion from 350 to 900 nm. A power conversion efficiency of 5.25% with a remarkably low Eloss of 0.54 eV was achieved by optimizing the nanomorphology of the BHJ films by adding pyridine and by controlling the ZnO/BHJ interfacial properties.

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