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Nanoimprinted Zno and Zno quantum dots embedded Sio2 layers for inverted bulk heterojunction solar cells

  • Hwa Young Yang
  • , Rafiq Ahmad
  • , Mohammad Vaseem
  • , Won Yeop Rho
  • , Nirmalya Tripathy
  • , Dae Geun Choi
  • , Yoon Bong Hahn*
  • *Corresponding author for this work
  • Jeonbuk National University
  • Korea Institute of Machinery and Materials

Research output: Contribution to journalJournal articlepeer-review

Abstract

Inverted bulk heterojunction (BHJ) solar cells have received much interest due to their stability and lifetime. The inverted bulk heterojunction solar cells are fabricated based on poly(3-hexylthiophene (P3HT)) and Phenyl-C61-butyric acid methyl ester (PCBM). Proper engineering of nanostructures can enhance the adsorption of the sunlight in solar cells. Here, we used nanoimprint lithography technique to form nanoimprinted ZnO (NI-ZnO) or ZnO quantum dots-embedded SiO2 nanoparticles (NI-SiO2@ZnO) layers on ITO substrates. The nanoimprinted layer not only provides ideal scattering characteristics for optimum light trapping, but also acts as electron transport layer. Compared to the power conversion efficiency (PCE) of 1.83% with plain ZnO layer, the devices with NI-ZnO and NI-SiO2@ZnO layers resulted in higher PCEs of 2.35% and 2.94%, respectively.

Original languageEnglish
Pages (from-to)1253-1257
Number of pages5
JournalScience of Advanced Materials
Volume7
Issue number7
DOIs
StatePublished - 2015

UN SDGs

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

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Hybrid solar cell
  • Nanoimprint lithography
  • Silica nanosphere
  • ZnO layer
  • ZnO QDs

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science

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