Facile fabrication method of small-sized crystal silicon solar cells for ubiquitous applications and tandem device with perovskite solar cells


KANDA H., Shibayama N., ÜZÜM A. , Umeyama T., Imahori H., Chiang Y., ...Daha Fazla

MATERIALS TODAY ENERGY, cilt.7, ss.190-198, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 7
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.mtener.2017.09.009
  • Dergi Adı: MATERIALS TODAY ENERGY
  • Sayfa Sayıları: ss.190-198

Özet

Small-sized single crystalline silicon solar cells (ca. 25 mm(2)) were fabricated by a non-vacuum process as an energy supply for small devices (ubiquitous devices: a wristwatch, desktop calculator etc.) and processed for a tandem solar-cell research. A side-edge etching procedure was performed in order to eliminate detrimental cracks to improve photovoltaic properties. Moreover, the new structure of the small-sized solar cell with side contact provides reduced shadow loss of contacts. After the structural and procedural optimization, a conversion efficiency of 16.4% was achieved by a non-vacuum process with 3 mm x 8 mm surface dimension solar cell. Finally, the photovoltaic characteristics of small silicon cells, as a function of light intensity for the ubiquitous purposes were compared with amorphous silicon solar cells. In addition, the facile processed silicon solar cell was integrated into mechanically-stacked tandem solar cells with perovskite solar cells by direct contact of TCO layers of each sub-cell. The counter electrode MoOX/IZO over HTM (spiro-OMeTAD) in top perovskite cells is physically placed on top of the bottom Si solar cell to form a series tandem configuration. (C) 2017 Elsevier Ltd. All rights reserved.