Solution-dispersed copper iodide anode buffer layer gives P3HT:PCBM-based organic solar cells an efficiency boost

Eng Liang Lim, Chi Chin Yap, Mohammad Hafizuddin Jumali, Farah Liyana Khairulaman

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this work, we proposed solution-dispersion of copper iodide (CuI) anode buffer layer (ABL) for inverted organic solar cell (I-OSC) application. It was found that device coated with CuI ABL achieved a higher power conversion efficiency of 3.20%, which can be attributed to the significant improvement of the photovoltaic properties such as short circuit current density (Jsc) and fill factor. The electrical characterizations (i.e. series resistance (Rseries), shunt resistance (Rshunt) and impedance measurement) have revealed that the free holes can be extracted to the anode electrode more effectively through CuI ABL compared to that of standard device (without CuI). As a result, CuI suppressed holes to recombine with electrons residing at the lowest unoccupied molecular orbital of PCBM. The obtained results indicate that CuI is an effective ABL and solution dispersion method can be used to apply for I-OSC application. We believe that this work is suitable to apply in low-temperature processed flexible-based optoelectronic devices.

Original languageEnglish
JournalJournal of Materials Science: Materials in Electronics
DOIs
Publication statusAccepted/In press - 1 Jan 2018

Fingerprint

Iodides
Buffer layers
acceleration (physics)
iodides
Copper
Anodes
anodes
buffers
solar cells
copper
impedance measurement
shunts
Molecular orbitals
short circuit currents
optoelectronic devices
Short circuit currents
Optoelectronic devices
Conversion efficiency
molecular orbitals
Current density

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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title = "Solution-dispersed copper iodide anode buffer layer gives P3HT:PCBM-based organic solar cells an efficiency boost",
abstract = "In this work, we proposed solution-dispersion of copper iodide (CuI) anode buffer layer (ABL) for inverted organic solar cell (I-OSC) application. It was found that device coated with CuI ABL achieved a higher power conversion efficiency of 3.20{\%}, which can be attributed to the significant improvement of the photovoltaic properties such as short circuit current density (Jsc) and fill factor. The electrical characterizations (i.e. series resistance (Rseries), shunt resistance (Rshunt) and impedance measurement) have revealed that the free holes can be extracted to the anode electrode more effectively through CuI ABL compared to that of standard device (without CuI). As a result, CuI suppressed holes to recombine with electrons residing at the lowest unoccupied molecular orbital of PCBM. The obtained results indicate that CuI is an effective ABL and solution dispersion method can be used to apply for I-OSC application. We believe that this work is suitable to apply in low-temperature processed flexible-based optoelectronic devices.",
author = "Lim, {Eng Liang} and Yap, {Chi Chin} and Jumali, {Mohammad Hafizuddin} and Khairulaman, {Farah Liyana}",
year = "2018",
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AU - Lim, Eng Liang

AU - Yap, Chi Chin

AU - Jumali, Mohammad Hafizuddin

AU - Khairulaman, Farah Liyana

PY - 2018/1/1

Y1 - 2018/1/1

N2 - In this work, we proposed solution-dispersion of copper iodide (CuI) anode buffer layer (ABL) for inverted organic solar cell (I-OSC) application. It was found that device coated with CuI ABL achieved a higher power conversion efficiency of 3.20%, which can be attributed to the significant improvement of the photovoltaic properties such as short circuit current density (Jsc) and fill factor. The electrical characterizations (i.e. series resistance (Rseries), shunt resistance (Rshunt) and impedance measurement) have revealed that the free holes can be extracted to the anode electrode more effectively through CuI ABL compared to that of standard device (without CuI). As a result, CuI suppressed holes to recombine with electrons residing at the lowest unoccupied molecular orbital of PCBM. The obtained results indicate that CuI is an effective ABL and solution dispersion method can be used to apply for I-OSC application. We believe that this work is suitable to apply in low-temperature processed flexible-based optoelectronic devices.

AB - In this work, we proposed solution-dispersion of copper iodide (CuI) anode buffer layer (ABL) for inverted organic solar cell (I-OSC) application. It was found that device coated with CuI ABL achieved a higher power conversion efficiency of 3.20%, which can be attributed to the significant improvement of the photovoltaic properties such as short circuit current density (Jsc) and fill factor. The electrical characterizations (i.e. series resistance (Rseries), shunt resistance (Rshunt) and impedance measurement) have revealed that the free holes can be extracted to the anode electrode more effectively through CuI ABL compared to that of standard device (without CuI). As a result, CuI suppressed holes to recombine with electrons residing at the lowest unoccupied molecular orbital of PCBM. The obtained results indicate that CuI is an effective ABL and solution dispersion method can be used to apply for I-OSC application. We believe that this work is suitable to apply in low-temperature processed flexible-based optoelectronic devices.

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