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

Hiroyuki Kanda, Naoyuki Shibayama, Abdullah Uzum, Tomokazu Umeyama, Hiroshi Imahori, Yu Hsien Chiang, Chao-Yu Chen, Mohammad Khaja Nazeeruddin, Seigo Ito

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Small-sized single crystalline silicon solar cells (ca. 25 mm2) 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 × 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.

Original languageEnglish
Pages (from-to)190-198
Number of pages9
JournalMaterials Today Energy
Volume7
DOIs
Publication statusPublished - 2018 Mar 1

Fingerprint

Silicon solar cells
Solar cells
Fabrication
Crystals
Silicon
Amorphous silicon
Perovskite
Conversion efficiency
Etching
Perovskite solar cells
Crystalline materials
Cracks
Electrodes

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science (miscellaneous)
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

Kanda, Hiroyuki ; Shibayama, Naoyuki ; Uzum, Abdullah ; Umeyama, Tomokazu ; Imahori, Hiroshi ; Chiang, Yu Hsien ; Chen, Chao-Yu ; Nazeeruddin, Mohammad Khaja ; Ito, Seigo. / Facile fabrication method of small-sized crystal silicon solar cells for ubiquitous applications and tandem device with perovskite solar cells. In: Materials Today Energy. 2018 ; Vol. 7. pp. 190-198.
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Facile fabrication method of small-sized crystal silicon solar cells for ubiquitous applications and tandem device with perovskite solar cells. / Kanda, Hiroyuki; Shibayama, Naoyuki; Uzum, Abdullah; Umeyama, Tomokazu; Imahori, Hiroshi; Chiang, Yu Hsien; Chen, Chao-Yu; Nazeeruddin, Mohammad Khaja; Ito, Seigo.

In: Materials Today Energy, Vol. 7, 01.03.2018, p. 190-198.

Research output: Contribution to journalArticle

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AU - Uzum, Abdullah

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AU - Imahori, Hiroshi

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AU - Nazeeruddin, Mohammad Khaja

AU - Ito, Seigo

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