Asymmetric, efficient π-conjugated organic semiconducting chromophore for bulk-heterojunction organic photovoltaics

M. Nazim; Sadia Ameen; M. Shaheer Akhtar; Hyung Shik Shin

doi:10.1016/j.dyepig.2017.09.048

Asymmetric, efficient π-conjugated organic semiconducting chromophore for bulk-heterojunction organic photovoltaics

M. Nazim
, Sadia Ameen
, M. Shaheer Akhtar
, Hyung Shik Shin^*

^*Corresponding author for this work

Jeonbuk National University

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

14 Scopus citations

Abstract

A novel, asymmetric benzothiadiazole-core π-conjugated organic semiconducting chromophore (CF-BTz-ThR) containing an alkyl bithiophene donor and 3,5-bis (trifluoromethyl) benzene as acceptor unit was synthesized via Suzuki cross-coupling in a relatively cost-effective way. The synthesized chromophore was applied as an acceptor material in the solution-processed fabrication of bulk heterojunction (BHJ) organic photovoltaics (OPVs). The presence of terminal hexyl chain in CF-BTz-ThR induced its solubility in common organic solvents. The energy levels of CF-BTz-ThR were calculated as −5.22 eV and −3.19 eV for HOMO and LUMO, respectively. The fabricated devices attained power conversion efficiency (PCE) of ∼3.52% for CF-BTz-ThR: PC₆₁BM (1:3, w/w) ratio with the short circuit current (J_SC) of ∼10.38 mA/cm² and the open-circuit voltage (V_OC) of ∼0.68 V. The reasonable J_SC and V_OC of the devices might be attributed to strong absorption and emission properties as well as the electrochemical properties due to the presence of strong electron-withdrawing benzothiadiazole as well as –CF₃ unit as electron-acceptor.

Original language	English
Pages (from-to)	141-148
Number of pages	8
Journal	Dyes and Pigments
Volume	149
DOIs	https://doi.org/10.1016/j.dyepig.2017.09.048
State	Published - 2018.02

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

3,5-bis (trifluoromethyl) benzene
Benzothiadiazole
Electrochemical properties
Organic photovoltaics
Semiconducting chromophore

Quacquarelli Symonds(QS) Subject Topics

Engineering - Petroleum
Engineering - Chemical

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10.1016/j.dyepig.2017.09.048

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@article{c4601170bed1467289aaa94850fbfae3,

title = "Asymmetric, efficient π-conjugated organic semiconducting chromophore for bulk-heterojunction organic photovoltaics",

abstract = "A novel, asymmetric benzothiadiazole-core π-conjugated organic semiconducting chromophore (CF-BTz-ThR) containing an alkyl bithiophene donor and 3,5-bis (trifluoromethyl) benzene as acceptor unit was synthesized via Suzuki cross-coupling in a relatively cost-effective way. The synthesized chromophore was applied as an acceptor material in the solution-processed fabrication of bulk heterojunction (BHJ) organic photovoltaics (OPVs). The presence of terminal hexyl chain in CF-BTz-ThR induced its solubility in common organic solvents. The energy levels of CF-BTz-ThR were calculated as −5.22 eV and −3.19 eV for HOMO and LUMO, respectively. The fabricated devices attained power conversion efficiency (PCE) of ∼3.52\% for CF-BTz-ThR: PC61BM (1:3, w/w) ratio with the short circuit current (JSC) of ∼10.38 mA/cm2 and the open-circuit voltage (VOC) of ∼0.68 V. The reasonable JSC and VOC of the devices might be attributed to strong absorption and emission properties as well as the electrochemical properties due to the presence of strong electron-withdrawing benzothiadiazole as well as –CF3 unit as electron-acceptor.",

keywords = "3,5-bis (trifluoromethyl) benzene, Benzothiadiazole, Electrochemical properties, Organic photovoltaics, Semiconducting chromophore",

author = "M. Nazim and Sadia Ameen and \{Shaheer Akhtar\}, M. and Shin, \{Hyung Shik\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = feb,

doi = "10.1016/j.dyepig.2017.09.048",

language = "English",

volume = "149",

pages = "141--148",

journal = "Dyes and Pigments",

issn = "0143-7208",

}

TY - JOUR

T1 - Asymmetric, efficient π-conjugated organic semiconducting chromophore for bulk-heterojunction organic photovoltaics

AU - Nazim, M.

AU - Ameen, Sadia

AU - Shaheer Akhtar, M.

AU - Shin, Hyung Shik

PY - 2018/2

Y1 - 2018/2

N2 - A novel, asymmetric benzothiadiazole-core π-conjugated organic semiconducting chromophore (CF-BTz-ThR) containing an alkyl bithiophene donor and 3,5-bis (trifluoromethyl) benzene as acceptor unit was synthesized via Suzuki cross-coupling in a relatively cost-effective way. The synthesized chromophore was applied as an acceptor material in the solution-processed fabrication of bulk heterojunction (BHJ) organic photovoltaics (OPVs). The presence of terminal hexyl chain in CF-BTz-ThR induced its solubility in common organic solvents. The energy levels of CF-BTz-ThR were calculated as −5.22 eV and −3.19 eV for HOMO and LUMO, respectively. The fabricated devices attained power conversion efficiency (PCE) of ∼3.52% for CF-BTz-ThR: PC61BM (1:3, w/w) ratio with the short circuit current (JSC) of ∼10.38 mA/cm2 and the open-circuit voltage (VOC) of ∼0.68 V. The reasonable JSC and VOC of the devices might be attributed to strong absorption and emission properties as well as the electrochemical properties due to the presence of strong electron-withdrawing benzothiadiazole as well as –CF3 unit as electron-acceptor.

AB - A novel, asymmetric benzothiadiazole-core π-conjugated organic semiconducting chromophore (CF-BTz-ThR) containing an alkyl bithiophene donor and 3,5-bis (trifluoromethyl) benzene as acceptor unit was synthesized via Suzuki cross-coupling in a relatively cost-effective way. The synthesized chromophore was applied as an acceptor material in the solution-processed fabrication of bulk heterojunction (BHJ) organic photovoltaics (OPVs). The presence of terminal hexyl chain in CF-BTz-ThR induced its solubility in common organic solvents. The energy levels of CF-BTz-ThR were calculated as −5.22 eV and −3.19 eV for HOMO and LUMO, respectively. The fabricated devices attained power conversion efficiency (PCE) of ∼3.52% for CF-BTz-ThR: PC61BM (1:3, w/w) ratio with the short circuit current (JSC) of ∼10.38 mA/cm2 and the open-circuit voltage (VOC) of ∼0.68 V. The reasonable JSC and VOC of the devices might be attributed to strong absorption and emission properties as well as the electrochemical properties due to the presence of strong electron-withdrawing benzothiadiazole as well as –CF3 unit as electron-acceptor.

KW - 3,5-bis (trifluoromethyl) benzene

KW - Benzothiadiazole

KW - Electrochemical properties

KW - Organic photovoltaics

KW - Semiconducting chromophore

UR - https://www.scopus.com/pages/publications/85030561376

U2 - 10.1016/j.dyepig.2017.09.048

DO - 10.1016/j.dyepig.2017.09.048

M3 - Journal article

AN - SCOPUS:85030561376

SN - 0143-7208

VL - 149

SP - 141

EP - 148

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Asymmetric, efficient π-conjugated organic semiconducting chromophore for bulk-heterojunction organic photovoltaics

Abstract

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

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