Flexible, Stretchable, and Biodegradable Thin-Film Silicon Photovoltaics
This chapter provides an overview of recent progress in the study of thin-film Si photovoltaic (PV) technologies, specifically devices in flexible, stretchable, and/or degradable formats for biomedical applications. First, various approaches for synthesis, fabrication, and assembly of different types of thin-film Si PV cells, ranging from amorphous Si, microcrystalline Si to single-crystalline Si cells, are reviewed. Performances of various cells are also discussed. Materials selection and mechanical considerations are presented, both analytically and numerically, for achieving design flexible and stretchable Si PV cells for lightweight, wearable, and/or implantable light detection and energy harvesting systems. Finally, strategies to form thin-film Si PV cells in a water-soluble and biodegradable “transient” format for bio-integration are discussed. Because of these novel characteristics, thin-film Si PV cells offer a promising solution for energy supply in emerging biomedical applications.
- 4.T. Matsui, H. Sai, T. Suezaki, M. Matsumoto, K. Saito, I. Yoshida, M. Kondo, in Proceedings of the 28th European Photovoltaic Solar Energy Conference and Exhibition, 2013, p. 2213Google Scholar
- 16.M.M. Moslehi, Thin-silicon, low-cost solar photovoltaic modules using kerfless epitaxial silicon lift-off technology. Solexel Inc (2012)Google Scholar