Hybrid Organic/Silicon Solar Cells Using Solution-Processed Aluminum-Doped Zinc Oxides as Efficient Electron Selective Contact

Po Hsuan Chu, Peichen Yu, Hsin Fei Meng, Yu Chiang Chao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, hybrid organic silicon heterojunction solar cells have attracted significant interests due to good device performance and simple solution processes. However, electron transport across the cathode interface remains one of the critical issues to be solved. In this study, we employ aluminum-doped zinc oxide (AZO) nanoparticle dispersion to form an electron transport interlayer between the n-type silicon (n-Si) and rear-side aluminum (Al) electrode via blade coating. We further investigate the correlation between the surface morphology and the device characteristics for various furnace annealing conditions: 200°C, 300°C, and 350°C. The hybrid solar cell with the AZO interlayer annealed at 300°C exhibits the highest power conversion efficiency (PCE) of 11.8% with a fill-factor (FF) of 71.3%, where the film morphology shows small and relatively smooth grains revealed by the atomic force microscopy. As a comparison, the reference counterpart without the AZO interlayer exhibits a PCE of 8.5% with a FF of 61.7%. The preliminary results demonstrate the potential of inorganic nanoparticle solution processes for forming a uniform and homogeneous interlayer. Further work on the contact resistance and carrier selectivity of the AZO thin film is still in progress and will be presented.

Original languageEnglish
Title of host publication2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages675-677
Number of pages3
ISBN (Electronic)9781728161150
DOIs
Publication statusPublished - 2020 Jun 14
Externally publishedYes
Event47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada
Duration: 2020 Jun 152020 Aug 21

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
Volume2020-June
ISSN (Print)0160-8371

Conference

Conference47th IEEE Photovoltaic Specialists Conference, PVSC 2020
CountryCanada
CityCalgary
Period2020/06/152020/08/21

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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