Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs

Alfred J. Baca, Ki Jun Yu, Tyler A. Cain, Dae Hyeong Kim, Jongseung Yoon, Angus A. Rockett, Ralph G. Nuzzo, John A. Rogers

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

Abstract

We recently reported a strategy, in which modules consist of large-scale arrays of small, interconnected ultrathin (i.e. 1-20 μm) Si microcells (μ-cells) formed by anisotropic etching of bulk wafers and integrated with a soft printing technique. Here we report three new advances in this type of printed, μ-cell technology. First, we show that μ-cells formed with low purity, solar grade wafers (Dow Corning ® 101 SOG Si metal), can achieve efficiencies much higher than those possible with corresponding bulk cells formed with the same material. Second, we demonstrate high voltage mini-modules that incorporate these μ-cells and lead to high voltage outputs. Finally, we demonstrate the fabrication of mechanically stretchable solar cell modules which are non-coplanar (i.e. arch shaped). The results show that these materials and designs yield a stretchable layout that can undergo strains of up to 30 % without failure.

Original languageEnglish (US)
Title of host publication2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Pages120-123
Number of pages4
DOIs
StatePublished - Dec 1 2009
Event2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States
Duration: Jun 7 2009Jun 12 2009

Other

Other2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
CountryUnited States
CityPhiladelphia, PA
Period6/7/096/12/09

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs'. Together they form a unique fingerprint.

  • Cite this

    Baca, A. J., Yu, K. J., Cain, T. A., Kim, D. H., Yoon, J., Rockett, A. A., Nuzzo, R. G., & Rogers, J. A. (2009). Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs. In 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 (pp. 120-123). [5411715] https://doi.org/10.1109/PVSC.2009.5411715