Ultra-thick semi-crystalline photoactive donor polymer for efficient indoor organic photovoltaics

Sang Chul Shin, Chang Woo Koh, Premkumar Vincent, Ji Soo Goo, Jin Hyuk Bae, Jae Joon Lee, Changhwan Shin, Hyeok Kim, Han Young Woo, Jae Won Shim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An in-depth study on the photovoltaic characteristics under indoor lights, i.e., light-emitting diode (LED), fluorescent lamps, and halogen lamps, was performed with varying the photoactive layer thickness (120–870 nm), by comparing those under 1-sun condition. The semi-crystalline mid-gap photoactive polymer, poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2FBT) and a fullerene derivative, [6,6]-phenyl C 71 butyric acid methyl ester (PC 70 BM) were used as a photoactive layer. In the contrary to the measurements under 1-sun condition, the indoor devices show a clearly different behavior, showing the thickness tolerant short-circuit current density (J SC ) and fill factor (FF) values with 280–870 nm thick photoactive layers. The retained J SC and FF values of thick indoor devices were discussed in terms of the parasitic resistance effects based on the single-diode equivalent circuit model. The much lower series/shunt resistance (Rs/R P ) ratio was measured with thick photoactive layer (≥280 nm), resulting in negligible decreases in the J SC and FF values even with a 870-nm-thick active layer under the LED condition. Under 1000 lx LED light, the PPDT2FBT:PC 70 BM device showed an optimum power conversion efficiency (PCE) of 16% (max power density, 44.8 μW/cm 2 ) with an open-circuit voltage of 587 mV, a J SC of 117 μA/cm 2 , and a FF of 65.2. The device with a 870-nm-thick active layer still exhibited an excellent performance with a PCE of 12.5%. These results clearly suggest that the critical parasitic resistance effects on the performance vary depending on the light illumination condition, and the large R P associated with the viable thick photoactive layer and the well-matched absorption (of photoactive layer) with the irradiance spectrum (of indoor light) are essential to realize efficient indoor photovoltaic cells with high J SC and FF.

Original languageEnglish
Pages (from-to)466-475
Number of pages10
JournalNano Energy
Volume58
DOIs
Publication statusPublished - 2019 Apr 1

Fingerprint

Polymers
Crystalline materials
Light emitting diodes
Sun
Conversion efficiency
Thiadiazoles
Fullerenes
Fluorescent lamps
Halogens
Butyric acid
Butyric Acid
Photovoltaic cells
Open circuit voltage
Electric lamps
Equivalent circuits
Short circuit currents
Esters
Diodes
Current density
Lighting

Keywords

  • Indoor light conditions
  • Organic photovoltaics
  • Poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2, 5]thiadiazole)]
  • Semi-crystalline polymer
  • Single-diode equivalent circuit model
  • Ultra-thick photoactive layer

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Shin, S. C., Koh, C. W., Vincent, P., Goo, J. S., Bae, J. H., Lee, J. J., ... Shim, J. W. (2019). Ultra-thick semi-crystalline photoactive donor polymer for efficient indoor organic photovoltaics. Nano Energy, 58, 466-475. https://doi.org/10.1016/j.nanoen.2019.01.061

Ultra-thick semi-crystalline photoactive donor polymer for efficient indoor organic photovoltaics. / Shin, Sang Chul; Koh, Chang Woo; Vincent, Premkumar; Goo, Ji Soo; Bae, Jin Hyuk; Lee, Jae Joon; Shin, Changhwan; Kim, Hyeok; Woo, Han Young; Shim, Jae Won.

In: Nano Energy, Vol. 58, 01.04.2019, p. 466-475.

Research output: Contribution to journalArticle

Shin, SC, Koh, CW, Vincent, P, Goo, JS, Bae, JH, Lee, JJ, Shin, C, Kim, H, Woo, HY & Shim, JW 2019, 'Ultra-thick semi-crystalline photoactive donor polymer for efficient indoor organic photovoltaics', Nano Energy, vol. 58, pp. 466-475. https://doi.org/10.1016/j.nanoen.2019.01.061
Shin, Sang Chul ; Koh, Chang Woo ; Vincent, Premkumar ; Goo, Ji Soo ; Bae, Jin Hyuk ; Lee, Jae Joon ; Shin, Changhwan ; Kim, Hyeok ; Woo, Han Young ; Shim, Jae Won. / Ultra-thick semi-crystalline photoactive donor polymer for efficient indoor organic photovoltaics. In: Nano Energy. 2019 ; Vol. 58. pp. 466-475.
@article{c48a6aa9c7bf4de4b7364e74c0534191,
title = "Ultra-thick semi-crystalline photoactive donor polymer for efficient indoor organic photovoltaics",
abstract = "An in-depth study on the photovoltaic characteristics under indoor lights, i.e., light-emitting diode (LED), fluorescent lamps, and halogen lamps, was performed with varying the photoactive layer thickness (120–870 nm), by comparing those under 1-sun condition. The semi-crystalline mid-gap photoactive polymer, poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2FBT) and a fullerene derivative, [6,6]-phenyl C 71 butyric acid methyl ester (PC 70 BM) were used as a photoactive layer. In the contrary to the measurements under 1-sun condition, the indoor devices show a clearly different behavior, showing the thickness tolerant short-circuit current density (J SC ) and fill factor (FF) values with 280–870 nm thick photoactive layers. The retained J SC and FF values of thick indoor devices were discussed in terms of the parasitic resistance effects based on the single-diode equivalent circuit model. The much lower series/shunt resistance (Rs/R P ) ratio was measured with thick photoactive layer (≥280 nm), resulting in negligible decreases in the J SC and FF values even with a 870-nm-thick active layer under the LED condition. Under 1000 lx LED light, the PPDT2FBT:PC 70 BM device showed an optimum power conversion efficiency (PCE) of 16{\%} (max power density, 44.8 μW/cm 2 ) with an open-circuit voltage of 587 mV, a J SC of 117 μA/cm 2 , and a FF of 65.2. The device with a 870-nm-thick active layer still exhibited an excellent performance with a PCE of 12.5{\%}. These results clearly suggest that the critical parasitic resistance effects on the performance vary depending on the light illumination condition, and the large R P associated with the viable thick photoactive layer and the well-matched absorption (of photoactive layer) with the irradiance spectrum (of indoor light) are essential to realize efficient indoor photovoltaic cells with high J SC and FF.",
keywords = "Indoor light conditions, Organic photovoltaics, Poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2, 5]thiadiazole)], Semi-crystalline polymer, Single-diode equivalent circuit model, Ultra-thick photoactive layer",
author = "Shin, {Sang Chul} and Koh, {Chang Woo} and Premkumar Vincent and Goo, {Ji Soo} and Bae, {Jin Hyuk} and Lee, {Jae Joon} and Changhwan Shin and Hyeok Kim and Woo, {Han Young} and Shim, {Jae Won}",
year = "2019",
month = "4",
day = "1",
doi = "10.1016/j.nanoen.2019.01.061",
language = "English",
volume = "58",
pages = "466--475",
journal = "Nano Energy",
issn = "2211-2855",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Ultra-thick semi-crystalline photoactive donor polymer for efficient indoor organic photovoltaics

AU - Shin, Sang Chul

AU - Koh, Chang Woo

AU - Vincent, Premkumar

AU - Goo, Ji Soo

AU - Bae, Jin Hyuk

AU - Lee, Jae Joon

AU - Shin, Changhwan

AU - Kim, Hyeok

AU - Woo, Han Young

AU - Shim, Jae Won

PY - 2019/4/1

Y1 - 2019/4/1

N2 - An in-depth study on the photovoltaic characteristics under indoor lights, i.e., light-emitting diode (LED), fluorescent lamps, and halogen lamps, was performed with varying the photoactive layer thickness (120–870 nm), by comparing those under 1-sun condition. The semi-crystalline mid-gap photoactive polymer, poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2FBT) and a fullerene derivative, [6,6]-phenyl C 71 butyric acid methyl ester (PC 70 BM) were used as a photoactive layer. In the contrary to the measurements under 1-sun condition, the indoor devices show a clearly different behavior, showing the thickness tolerant short-circuit current density (J SC ) and fill factor (FF) values with 280–870 nm thick photoactive layers. The retained J SC and FF values of thick indoor devices were discussed in terms of the parasitic resistance effects based on the single-diode equivalent circuit model. The much lower series/shunt resistance (Rs/R P ) ratio was measured with thick photoactive layer (≥280 nm), resulting in negligible decreases in the J SC and FF values even with a 870-nm-thick active layer under the LED condition. Under 1000 lx LED light, the PPDT2FBT:PC 70 BM device showed an optimum power conversion efficiency (PCE) of 16% (max power density, 44.8 μW/cm 2 ) with an open-circuit voltage of 587 mV, a J SC of 117 μA/cm 2 , and a FF of 65.2. The device with a 870-nm-thick active layer still exhibited an excellent performance with a PCE of 12.5%. These results clearly suggest that the critical parasitic resistance effects on the performance vary depending on the light illumination condition, and the large R P associated with the viable thick photoactive layer and the well-matched absorption (of photoactive layer) with the irradiance spectrum (of indoor light) are essential to realize efficient indoor photovoltaic cells with high J SC and FF.

AB - An in-depth study on the photovoltaic characteristics under indoor lights, i.e., light-emitting diode (LED), fluorescent lamps, and halogen lamps, was performed with varying the photoactive layer thickness (120–870 nm), by comparing those under 1-sun condition. The semi-crystalline mid-gap photoactive polymer, poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2FBT) and a fullerene derivative, [6,6]-phenyl C 71 butyric acid methyl ester (PC 70 BM) were used as a photoactive layer. In the contrary to the measurements under 1-sun condition, the indoor devices show a clearly different behavior, showing the thickness tolerant short-circuit current density (J SC ) and fill factor (FF) values with 280–870 nm thick photoactive layers. The retained J SC and FF values of thick indoor devices were discussed in terms of the parasitic resistance effects based on the single-diode equivalent circuit model. The much lower series/shunt resistance (Rs/R P ) ratio was measured with thick photoactive layer (≥280 nm), resulting in negligible decreases in the J SC and FF values even with a 870-nm-thick active layer under the LED condition. Under 1000 lx LED light, the PPDT2FBT:PC 70 BM device showed an optimum power conversion efficiency (PCE) of 16% (max power density, 44.8 μW/cm 2 ) with an open-circuit voltage of 587 mV, a J SC of 117 μA/cm 2 , and a FF of 65.2. The device with a 870-nm-thick active layer still exhibited an excellent performance with a PCE of 12.5%. These results clearly suggest that the critical parasitic resistance effects on the performance vary depending on the light illumination condition, and the large R P associated with the viable thick photoactive layer and the well-matched absorption (of photoactive layer) with the irradiance spectrum (of indoor light) are essential to realize efficient indoor photovoltaic cells with high J SC and FF.

KW - Indoor light conditions

KW - Organic photovoltaics

KW - Poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2, 5]thiadiazole)]

KW - Semi-crystalline polymer

KW - Single-diode equivalent circuit model

KW - Ultra-thick photoactive layer

UR - http://www.scopus.com/inward/record.url?scp=85060755955&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060755955&partnerID=8YFLogxK

U2 - 10.1016/j.nanoen.2019.01.061

DO - 10.1016/j.nanoen.2019.01.061

M3 - Article

AN - SCOPUS:85060755955

VL - 58

SP - 466

EP - 475

JO - Nano Energy

JF - Nano Energy

SN - 2211-2855

ER -