Semi-Transparent Perovskite Solar Cell

Semi-Transparent Perovskite Solar Cell Latest News

Recently, the IIT Bombay researchers have developed a semi-transparent perovskite solar cell (PSC).

About Semi-Transparent Perovskite Solar Cell

• It is layered over a traditional silicon-based solar cell, forming a 4-terminal (4T) tandem structure.
• Material used: The bottom sub-cell uses well-established silicon technology, while the top sub-cell features an indigenously developed halide perovskite semiconductor, enabling high light absorption and efficient energy conversion.
• This helps in power conversion efficiency of approximately 30 per cent compared with around 20 per cent now.
  • Halide perovskite is among the most efficient light-absorbing materials known today. Apart from being highly efficient in converting light into electricity, it is affordable as electronic grade perovskite semiconductors can be produced locally with available chemical resources.
• Perovskite Solar Cells are a type of photovoltaic (PV) technology that uses crystal structures called perovskites for converting sunlight into electricity.
• These crystals share the structure of the mineral calcium titanium oxide (CaTiO₃) and can be engineered to possess a wide range of optical, electrical, and semiconducting properties.
• The general chemical formula of a perovskite compound is ABX₃, where ‘A’ and ‘B’ are cations, and ‘X’ is an anion.
• They offer high power conversion efficiencies at a lower cost than traditional silicon-based PVs, but they suffer from shorter lifespan and stability issues.

Semi-Transparent Perovskite Solar Cell FAQs

Q1: What is the lifespan of a perovskite solar cell?

Ans: At least 20 years.

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Q2: What is Perovskite?

Ans: Perovskite refers to materials with the crystal structure of calcium titanium oxide (CaTiO₃), discovered in 1839 in Russia. The general formula is ABX₃, where ‘A’ and ‘B’ are cations and ‘X’ is an anion.

Source: IE