Research Area

Why we should focus on a solar technology

• Flexible Thin film solar cells

  A thin film is a thickness of less than μm. A thin film solar cell can be produced with the sequential deposition of multiple layers, such as an absorber, buffer, and window layers, on diverse flexible or rigid substrate materials like glass, metal foils, or plastic.

  Research is being conducted on various process technologies for thin-film solar cells to maximize device efficiency. Typical thin film solar cells examples are CIGS, CZTS, and CTS. These solar cells can be used further in terrestrial, water (floating solar cells), and space withstanding the environment.

  Related research

  CIGS, CZTSSe, Perovskite, Flexible Solar cells, and semi-transparent solar cells

• Next-Generation Tandem Solar cells

  Perovskite and CIGS-based high-efficiency tandem solar cell

  A Tandem Solar cell is a technology that stacks two or more solar cells with different energy absorption bands (band gaps). Next-generation tandem solar cell technology generally combines a wide bandgap perovskite structure as a top cell and narrow bandgap-based crystalline or CIGS solar cells to maximize light absorption. They fundamentally overcome the power conversion efficiency limitations generated by single-junction solar cells.

  Research is being conducted to secure stability, large area, and commercialization in this structure. We study and fabricate the proposed tandem solar cell via vacuum deposition techniques to make mass production possible in the near future.

  Keywords

  SI-based tandem cell, CIGS-based tandem cell, Perovskite vacuum deposition, multi-junction cell

• Multi-functional PV Modules

  Integrating PV technology into buildings, vehicles, roads, agricultural fields, and floating water surfaces has tremendous potential.

  Building-integrated photovoltaics (BIPV)

  Building-integrated photovoltaics generate power and provide protection from wind, noise, and weather. BIPV makes a significant contribution to reducing building-related CO2 emissions.

  Vehicle-integrated photovoltaics (VIPV)

  The photovoltaic module can replace a part of the vehicle shell in vehicle-integrated photovoltaics. The installed solar module feeds energy directly into the batteries of electric vehicles.

  Floating PV (FPV)

  FPV is an eco-friendly power generation facility installed using water surfaces such as reservoirs and the sea. Water-based solar power has the advantage that it can be installed without civil engineering or forest damage. Also, the Natural cooling effect of the water surface makes them nearly 9 ~ 10% more efficient than on land.

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