Alkoxybenzothiadiazole-Based Fullerene and Nonfullerene Polymer Solar Cells with High Shunt Resistance for Indoor Photovoltaic Applications

Song Yi Park, Yuxiang Li, Jaewon Kim, Tack Ho Lee, Bright Walker, Han Young Woo, Jin Young Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We synthesized three semicrystalline polymers (PTTBTBO, PDTBTBO, and P2FDTBTBO) by modulating the intra- and intermolecular noncovalent Coulombic interactions and investigated their photovoltaic characteristics under various light intensities. Low series (Rs) and high shunt (Rsh) resistances are essential prerequisites for good device properties under standard illumination (100 mW cm-2). Considering these factors, among three polymers, PDTBTBO polymer solar cells (PSCs) exhibited the most desirable characteristics, with peak power conversion efficiencies (PCE) of 7.52 and 9.60% by being blended with PC71BM under standard and dim light (2.5 mW cm-2), respectively. P2FDTBTBO PSCs exhibited a low PCE of 3.69% under standard light due to significant charge recombination with high Rs (9.42 ω cm2). However, the PCE was remarkably improved by 2.3 times (8.33% PCE) under dim light, showing negligible decrease in open-circuit voltage and remarkable increase in fill factor, which is due to an exceptionally high Rsh of over 1000 kω cm2. Rs is less significant under dim light because the generated current is too small to cause noticeable Rs-induced voltage losses. Instead, high Rsh becomes more important to avoid leakage currents. This work provides important tips to further optimize PSCs for indoor applications with low-power electronic devices such as Internet of things sensors.

Original languageEnglish
Pages (from-to)3885-3894
Number of pages10
JournalACS Applied Materials and Interfaces
Volume10
Issue number4
DOIs
Publication statusPublished - 2018 Jan 31

Fingerprint

Fullerenes
Conversion efficiency
Polymers
Low power electronics
Open circuit voltage
Leakage currents
Lighting
Polymer solar cells
Sensors
Electric potential

Keywords

  • dim light illumination
  • indoor applications
  • organic photovoltaics
  • photovoltaic polymers
  • polymer solar cells
  • shunt resistance

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Alkoxybenzothiadiazole-Based Fullerene and Nonfullerene Polymer Solar Cells with High Shunt Resistance for Indoor Photovoltaic Applications. / Park, Song Yi; Li, Yuxiang; Kim, Jaewon; Lee, Tack Ho; Walker, Bright; Woo, Han Young; Kim, Jin Young.

In: ACS Applied Materials and Interfaces, Vol. 10, No. 4, 31.01.2018, p. 3885-3894.

Research output: Contribution to journalArticle

Park, Song Yi ; Li, Yuxiang ; Kim, Jaewon ; Lee, Tack Ho ; Walker, Bright ; Woo, Han Young ; Kim, Jin Young. / Alkoxybenzothiadiazole-Based Fullerene and Nonfullerene Polymer Solar Cells with High Shunt Resistance for Indoor Photovoltaic Applications. In: ACS Applied Materials and Interfaces. 2018 ; Vol. 10, No. 4. pp. 3885-3894.
@article{ab5d2d8108814f19a88e2d8bf887d354,
title = "Alkoxybenzothiadiazole-Based Fullerene and Nonfullerene Polymer Solar Cells with High Shunt Resistance for Indoor Photovoltaic Applications",
abstract = "We synthesized three semicrystalline polymers (PTTBTBO, PDTBTBO, and P2FDTBTBO) by modulating the intra- and intermolecular noncovalent Coulombic interactions and investigated their photovoltaic characteristics under various light intensities. Low series (Rs) and high shunt (Rsh) resistances are essential prerequisites for good device properties under standard illumination (100 mW cm-2). Considering these factors, among three polymers, PDTBTBO polymer solar cells (PSCs) exhibited the most desirable characteristics, with peak power conversion efficiencies (PCE) of 7.52 and 9.60{\%} by being blended with PC71BM under standard and dim light (2.5 mW cm-2), respectively. P2FDTBTBO PSCs exhibited a low PCE of 3.69{\%} under standard light due to significant charge recombination with high Rs (9.42 ω cm2). However, the PCE was remarkably improved by 2.3 times (8.33{\%} PCE) under dim light, showing negligible decrease in open-circuit voltage and remarkable increase in fill factor, which is due to an exceptionally high Rsh of over 1000 kω cm2. Rs is less significant under dim light because the generated current is too small to cause noticeable Rs-induced voltage losses. Instead, high Rsh becomes more important to avoid leakage currents. This work provides important tips to further optimize PSCs for indoor applications with low-power electronic devices such as Internet of things sensors.",
keywords = "dim light illumination, indoor applications, organic photovoltaics, photovoltaic polymers, polymer solar cells, shunt resistance",
author = "Park, {Song Yi} and Yuxiang Li and Jaewon Kim and Lee, {Tack Ho} and Bright Walker and Woo, {Han Young} and Kim, {Jin Young}",
year = "2018",
month = "1",
day = "31",
doi = "10.1021/acsami.7b18152",
language = "English",
volume = "10",
pages = "3885--3894",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "4",

}

TY - JOUR

T1 - Alkoxybenzothiadiazole-Based Fullerene and Nonfullerene Polymer Solar Cells with High Shunt Resistance for Indoor Photovoltaic Applications

AU - Park, Song Yi

AU - Li, Yuxiang

AU - Kim, Jaewon

AU - Lee, Tack Ho

AU - Walker, Bright

AU - Woo, Han Young

AU - Kim, Jin Young

PY - 2018/1/31

Y1 - 2018/1/31

N2 - We synthesized three semicrystalline polymers (PTTBTBO, PDTBTBO, and P2FDTBTBO) by modulating the intra- and intermolecular noncovalent Coulombic interactions and investigated their photovoltaic characteristics under various light intensities. Low series (Rs) and high shunt (Rsh) resistances are essential prerequisites for good device properties under standard illumination (100 mW cm-2). Considering these factors, among three polymers, PDTBTBO polymer solar cells (PSCs) exhibited the most desirable characteristics, with peak power conversion efficiencies (PCE) of 7.52 and 9.60% by being blended with PC71BM under standard and dim light (2.5 mW cm-2), respectively. P2FDTBTBO PSCs exhibited a low PCE of 3.69% under standard light due to significant charge recombination with high Rs (9.42 ω cm2). However, the PCE was remarkably improved by 2.3 times (8.33% PCE) under dim light, showing negligible decrease in open-circuit voltage and remarkable increase in fill factor, which is due to an exceptionally high Rsh of over 1000 kω cm2. Rs is less significant under dim light because the generated current is too small to cause noticeable Rs-induced voltage losses. Instead, high Rsh becomes more important to avoid leakage currents. This work provides important tips to further optimize PSCs for indoor applications with low-power electronic devices such as Internet of things sensors.

AB - We synthesized three semicrystalline polymers (PTTBTBO, PDTBTBO, and P2FDTBTBO) by modulating the intra- and intermolecular noncovalent Coulombic interactions and investigated their photovoltaic characteristics under various light intensities. Low series (Rs) and high shunt (Rsh) resistances are essential prerequisites for good device properties under standard illumination (100 mW cm-2). Considering these factors, among three polymers, PDTBTBO polymer solar cells (PSCs) exhibited the most desirable characteristics, with peak power conversion efficiencies (PCE) of 7.52 and 9.60% by being blended with PC71BM under standard and dim light (2.5 mW cm-2), respectively. P2FDTBTBO PSCs exhibited a low PCE of 3.69% under standard light due to significant charge recombination with high Rs (9.42 ω cm2). However, the PCE was remarkably improved by 2.3 times (8.33% PCE) under dim light, showing negligible decrease in open-circuit voltage and remarkable increase in fill factor, which is due to an exceptionally high Rsh of over 1000 kω cm2. Rs is less significant under dim light because the generated current is too small to cause noticeable Rs-induced voltage losses. Instead, high Rsh becomes more important to avoid leakage currents. This work provides important tips to further optimize PSCs for indoor applications with low-power electronic devices such as Internet of things sensors.

KW - dim light illumination

KW - indoor applications

KW - organic photovoltaics

KW - photovoltaic polymers

KW - polymer solar cells

KW - shunt resistance

UR - http://www.scopus.com/inward/record.url?scp=85041447847&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85041447847&partnerID=8YFLogxK

U2 - 10.1021/acsami.7b18152

DO - 10.1021/acsami.7b18152

M3 - Article

VL - 10

SP - 3885

EP - 3894

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 4

ER -