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Controlling of Conductivity and Morphological Properties of Hole-Transport Layer Using Ionic Liquid for Vacuum-Free Planar Hybrid Solar Cells

Author

Listed:
  • Viet Thanh Hau Pham

    (Department of Chemistry and Environment, Da Lat University, Dalat 66100, Lam Dong, Vietnam)

  • Thanh Kieu Trinh

    (Department of Biotechnology and Environment, Yersin University of Da Lat, Dalat 66100, Lam Dong, Vietnam)

  • Hamid M. Shaikh

    (SABIC Polymer Research Center (SPRC), Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia)

  • Saeed M. Al-Zahrani

    (SABIC Polymer Research Center (SPRC), Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia)

  • Abdullah Alhamidi

    (SABIC Polymer Research Center (SPRC), Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia)

  • Sami Bin Dahman

    (SABIC Polymer Research Center (SPRC), Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia)

  • Mohaseen S. Tamboli

    (Korea Institute of Energy Technology (KENTECH), 200 Hyeokshin-ro, Naju 58330, Republic of Korea)

  • Nguyen Tam Nguyen Truong

    (School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea)

Abstract

In this study, an acidic (A) and pH-neutral (pHN) solution using poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the hole-transport layer (HTL) was modified using a 1-butyl-3-methylimidazolium chloride (BMIM + Cl − ) ionic liquid (IL). The effects of this ionic liquid on the conductivity and morphological properties of the PEDOT:PSS films were investigated. The conductivity and morphological properties of the PEDOT: PSS films before and after adding IL were measured using a UV–vis spectrophotometer and atomic force microscope (AFM), respectively. The conductivity of the A-PEDOT:PSS-film-based ionic liquid was decreased, while the conductivity of the pHN-PEDOT:PSS-film-based ionic liquid was increased. The surface morphology of the A-PEDOT:PSS-film-based ionic liquid was slightly decreased, while the conductivity of the pHN-PEDOT:PSS-film-based ionic liquid was slightly increased. The vacuum-free planar hybrid solar cells (VFPHSCs) using the pHN-PEDOT:PSS-film-based ionic liquid show a higher power conversion efficiency (PCE) than the VFPHSCs using the A-PEDOT:PSS-film-based ionic liquid. We also report that a solar cell with a structure of ITO/pHN-PEDOT:PSS/PTB7:PCBM/PEO/EGaIn has a maximum PCE of about ~5%.

Suggested Citation

  • Viet Thanh Hau Pham & Thanh Kieu Trinh & Hamid M. Shaikh & Saeed M. Al-Zahrani & Abdullah Alhamidi & Sami Bin Dahman & Mohaseen S. Tamboli & Nguyen Tam Nguyen Truong, 2023. "Controlling of Conductivity and Morphological Properties of Hole-Transport Layer Using Ionic Liquid for Vacuum-Free Planar Hybrid Solar Cells," Energies, MDPI, vol. 16(1), pages 1-11, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:1:p:467-:d:1022061
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