Isoindigo-based polymer solar cells with high open circuit voltages up to 1.01 v

Gi Eun Park; Suna Choi; Jicheol Shin; Min Ju Cho; Dong Hoon Choi

doi:10.1016/j.orgel.2016.04.016

Isoindigo-based polymer solar cells with high open circuit voltages up to 1.01 v

Gi Eun Park
, Suna Choi
, Jicheol Shin
, Min Ju Cho^*
, Dong Hoon Choi

^*Corresponding author for this work

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

18 Citations (Scopus)

Abstract

Isoindigo-based copolymers containing non-fluorinated (PIIDBT) and fluorinated bithiophene moieties (PIIDFBT) were synthesized. The replacement of hydrogen atoms with electronegative fluorine atom attained the intramolecular noncovalent interactions in conjugated polymer structure employing the concept of conformational locks. Furthermore, the fluorine characteristics as substituent atoms tuned the electron withdrawing ability and made the HOMO energy levels of fluorinated moieties deeper (-5.79 eV) than that of non-fluorinated polymer (-5.54 eV). As a result, the photovoltaic performance of PIIDFBT was improved by increasing its open circuit voltage (V_oc) up to 1.01 V, resulting in a power conversion efficiency of 6.21%. The PIIDFBT with high V_oc can be recognized as a promising candidate for both single junction and multi-junction photovoltaics.

Original language	English
Pages (from-to)	157-163
Number of pages	7
Journal	Organic Electronics
Volume	34
DOIs	https://doi.org/10.1016/j.orgel.2016.04.016
Publication status	Published - 2016 Jul 1

Bibliographical note

Funding Information:
The authors acknowledge the financial support from the National Research Foundation of Korea ( NRF2012R1A2A1A01008797 ) and from Key Research Institute Program ( NRF20100020209 ).

Keywords

Fluorinated moiety
Isoindigo
Open circuit voltage
Polymer solar cells

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
General Chemistry
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.orgel.2016.04.016

Cite this

@article{550fdc2967de430991e3dc45f66579cb,

title = "Isoindigo-based polymer solar cells with high open circuit voltages up to 1.01 v",

abstract = "Isoindigo-based copolymers containing non-fluorinated (PIIDBT) and fluorinated bithiophene moieties (PIIDFBT) were synthesized. The replacement of hydrogen atoms with electronegative fluorine atom attained the intramolecular noncovalent interactions in conjugated polymer structure employing the concept of conformational locks. Furthermore, the fluorine characteristics as substituent atoms tuned the electron withdrawing ability and made the HOMO energy levels of fluorinated moieties deeper (-5.79 eV) than that of non-fluorinated polymer (-5.54 eV). As a result, the photovoltaic performance of PIIDFBT was improved by increasing its open circuit voltage (Voc) up to 1.01 V, resulting in a power conversion efficiency of 6.21\%. The PIIDFBT with high Voc can be recognized as a promising candidate for both single junction and multi-junction photovoltaics.",

keywords = "Fluorinated moiety, Isoindigo, Open circuit voltage, Polymer solar cells",

author = "Park, \{Gi Eun\} and Suna Choi and Jicheol Shin and Cho, \{Min Ju\} and Choi, \{Dong Hoon\}",

note = "Funding Information: The authors acknowledge the financial support from the National Research Foundation of Korea ( NRF2012R1A2A1A01008797 ) and from Key Research Institute Program ( NRF20100020209 ). ",

year = "2016",

month = jul,

day = "1",

doi = "10.1016/j.orgel.2016.04.016",

language = "English",

volume = "34",

pages = "157--163",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Isoindigo-based polymer solar cells with high open circuit voltages up to 1.01 v

AU - Park, Gi Eun

AU - Choi, Suna

AU - Shin, Jicheol

AU - Cho, Min Ju

AU - Choi, Dong Hoon

N1 - Funding Information: The authors acknowledge the financial support from the National Research Foundation of Korea ( NRF2012R1A2A1A01008797 ) and from Key Research Institute Program ( NRF20100020209 ).

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Isoindigo-based copolymers containing non-fluorinated (PIIDBT) and fluorinated bithiophene moieties (PIIDFBT) were synthesized. The replacement of hydrogen atoms with electronegative fluorine atom attained the intramolecular noncovalent interactions in conjugated polymer structure employing the concept of conformational locks. Furthermore, the fluorine characteristics as substituent atoms tuned the electron withdrawing ability and made the HOMO energy levels of fluorinated moieties deeper (-5.79 eV) than that of non-fluorinated polymer (-5.54 eV). As a result, the photovoltaic performance of PIIDFBT was improved by increasing its open circuit voltage (Voc) up to 1.01 V, resulting in a power conversion efficiency of 6.21%. The PIIDFBT with high Voc can be recognized as a promising candidate for both single junction and multi-junction photovoltaics.

AB - Isoindigo-based copolymers containing non-fluorinated (PIIDBT) and fluorinated bithiophene moieties (PIIDFBT) were synthesized. The replacement of hydrogen atoms with electronegative fluorine atom attained the intramolecular noncovalent interactions in conjugated polymer structure employing the concept of conformational locks. Furthermore, the fluorine characteristics as substituent atoms tuned the electron withdrawing ability and made the HOMO energy levels of fluorinated moieties deeper (-5.79 eV) than that of non-fluorinated polymer (-5.54 eV). As a result, the photovoltaic performance of PIIDFBT was improved by increasing its open circuit voltage (Voc) up to 1.01 V, resulting in a power conversion efficiency of 6.21%. The PIIDFBT with high Voc can be recognized as a promising candidate for both single junction and multi-junction photovoltaics.

KW - Fluorinated moiety

KW - Isoindigo

KW - Open circuit voltage

KW - Polymer solar cells

UR - https://www.scopus.com/pages/publications/84964434535

UR - https://www.scopus.com/pages/publications/84964434535#tab=citedBy

U2 - 10.1016/j.orgel.2016.04.016

DO - 10.1016/j.orgel.2016.04.016

M3 - Article

AN - SCOPUS:84964434535

SN - 1566-1199

VL - 34

SP - 157

EP - 163

JO - Organic Electronics

JF - Organic Electronics

ER -

Isoindigo-based polymer solar cells with high open circuit voltages up to 1.01 v

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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