Organic donor-σ-acceptor molecules based on 1,2,4,5-tetrakis((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)benzene and perylene diimide derivative and their application to photovoltaic devices

Myung Hee Kim, Min Ju Cho, Kyung Hwan Kim, Mai Ha Hoang, Tae Wan Lee, Jung Il Jin, Nam Su Kang, Jae Woong Yu, Dong Hoon Choi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Donor-σ-acceptor molecules of HPBT-n(PDI) (n = 1, 2, and 4) containing perylene diimide (PDI) and π-extended 1,2,4,5-tetrakis((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)benzene (HPBT) have been successfully synthesized for studying the self-organization of each moiety and their applications in photovoltaic devices. Interesting features were found in these molecules: the aggregation-induced crystallization in the HPBT moieties enhanced the power conversion efficiency (PCE) in the photovoltaic cell. By incorporating HPBT as the donor and PDI as the acceptor moiety, we anticipated that their high degree of independent aggregation-induced crystallization would yield electron/hole transport channels and high mobility in the desired direction of charge transport. In a photovoltaic device, HPBT-1(PDI) gave a PCE of 0.22% with an open circuit voltage ranging from 0.62 to 0.63 V. When the HPBT moiety was more hindered by the PDI moiety, less PCE was observed in HPBT-2(PDI). Addition of methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM) resulted in enhancement of the PCE due to enhanced visible absorption. The device bearing HPBT-1(PDI) and PCBM (1:4 mol ratio) demonstrate much higher PCE to be around 1.60%.

Original languageEnglish
Pages (from-to)1429-1441
Number of pages13
JournalOrganic Electronics: physics, materials, applications
Volume10
Issue number8
DOIs
Publication statusPublished - 2009 Dec 1

Fingerprint

Perylene
Benzene
Conversion efficiency
benzene
Derivatives
Molecules
Butyric acid
butyric acid
molecules
esters
Crystallization
Esters
Bearings (structural)
Agglomeration
crystallization
Photovoltaic cells
photovoltaic cells
Open circuit voltage
open circuit voltage
Butyric Acid

Keywords

  • Acceptor
  • Crystallization
  • Donor
  • Photovoltaic cell
  • Semiconductor

ASJC Scopus subject areas

  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Electrical and Electronic Engineering
  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Organic donor-σ-acceptor molecules based on 1,2,4,5-tetrakis((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)benzene and perylene diimide derivative and their application to photovoltaic devices. / Kim, Myung Hee; Cho, Min Ju; Kim, Kyung Hwan; Hoang, Mai Ha; Lee, Tae Wan; Jin, Jung Il; Kang, Nam Su; Yu, Jae Woong; Choi, Dong Hoon.

In: Organic Electronics: physics, materials, applications, Vol. 10, No. 8, 01.12.2009, p. 1429-1441.

Research output: Contribution to journalArticle

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abstract = "Donor-σ-acceptor molecules of HPBT-n(PDI) (n = 1, 2, and 4) containing perylene diimide (PDI) and π-extended 1,2,4,5-tetrakis((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)benzene (HPBT) have been successfully synthesized for studying the self-organization of each moiety and their applications in photovoltaic devices. Interesting features were found in these molecules: the aggregation-induced crystallization in the HPBT moieties enhanced the power conversion efficiency (PCE) in the photovoltaic cell. By incorporating HPBT as the donor and PDI as the acceptor moiety, we anticipated that their high degree of independent aggregation-induced crystallization would yield electron/hole transport channels and high mobility in the desired direction of charge transport. In a photovoltaic device, HPBT-1(PDI) gave a PCE of 0.22{\%} with an open circuit voltage ranging from 0.62 to 0.63 V. When the HPBT moiety was more hindered by the PDI moiety, less PCE was observed in HPBT-2(PDI). Addition of methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM) resulted in enhancement of the PCE due to enhanced visible absorption. The device bearing HPBT-1(PDI) and PCBM (1:4 mol ratio) demonstrate much higher PCE to be around 1.60{\%}.",
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T1 - Organic donor-σ-acceptor molecules based on 1,2,4,5-tetrakis((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)benzene and perylene diimide derivative and their application to photovoltaic devices

AU - Kim, Myung Hee

AU - Cho, Min Ju

AU - Kim, Kyung Hwan

AU - Hoang, Mai Ha

AU - Lee, Tae Wan

AU - Jin, Jung Il

AU - Kang, Nam Su

AU - Yu, Jae Woong

AU - Choi, Dong Hoon

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AB - Donor-σ-acceptor molecules of HPBT-n(PDI) (n = 1, 2, and 4) containing perylene diimide (PDI) and π-extended 1,2,4,5-tetrakis((E)-2-(5′-hexyl-2,2′-bithiophen-5-yl)vinyl)benzene (HPBT) have been successfully synthesized for studying the self-organization of each moiety and their applications in photovoltaic devices. Interesting features were found in these molecules: the aggregation-induced crystallization in the HPBT moieties enhanced the power conversion efficiency (PCE) in the photovoltaic cell. By incorporating HPBT as the donor and PDI as the acceptor moiety, we anticipated that their high degree of independent aggregation-induced crystallization would yield electron/hole transport channels and high mobility in the desired direction of charge transport. In a photovoltaic device, HPBT-1(PDI) gave a PCE of 0.22% with an open circuit voltage ranging from 0.62 to 0.63 V. When the HPBT moiety was more hindered by the PDI moiety, less PCE was observed in HPBT-2(PDI). Addition of methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM) resulted in enhancement of the PCE due to enhanced visible absorption. The device bearing HPBT-1(PDI) and PCBM (1:4 mol ratio) demonstrate much higher PCE to be around 1.60%.

KW - Acceptor

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KW - Photovoltaic cell

KW - Semiconductor

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