Inverted polymer solar cells based on thin ZnO films grown by Mist chemical vapor deposition system

Chandan Biswas, Zhu Ma, Xiaodan Zhu, Toshiyuki Kawaharamura, Kang L. Wang

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

Abstract

Extensive investigations have been conducted in order to synthesize high quality Zinc oxide (ZnO) thin films for numerous applications. These methods are either expensive to make or result polycrystalline thin films with low optoelectronic properties. Here we demonstrated a simple and inexpensive method to grow high quality ZnO thin films by a mist chemical vapor assisted depositing (Mist-CVD) system for inverted polymer solar cell (IPSC) application. The IPSC performance fabricated by Mist-CVD grown ZnO thin films were compared with two different Zn precursors (Zinc acetylacetonate hydrate and Zinc acetate dehydrate). Variations in IPSC performance on the growth temperature and growth time of the ZnO thin films were prominently demonstrated. The surface morphology of the ZnO films was investigated using scanning electron microscopy, atomic force microscopy and correlated with IPSC performance. The IPSC performance using two different precursors has been compared thoroughly. A 24% increase in solar cell efficiency (contributed from 21% increase in fill factor and 151% increase in shunt resistance) was achieved using Zinc acetate dehydrate compare to Zinc acetylacetonate hydrate precursor. The transmittance of ZnO thin films was evaluated by transmission spectroscopy. High performance IPSC can be fabricated using this simple and inexpensive method by synthesizing high quality thin ZnO films.

Original languageEnglish
Title of host publicationOrganic Photovoltaics XV
EditorsZakya H. Kafafi, Paul A. Lane, Ifor D. W. Samuel
PublisherSPIE
ISBN (Electronic)9781628412116
DOIs
Publication statusPublished - 2014
EventOrganic Photovoltaics XV - San Diego, United States
Duration: 2014 Aug 192014 Aug 21

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9184
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOrganic Photovoltaics XV
CountryUnited States
CitySan Diego
Period14-08-1914-08-21

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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