A research and development cooperation between Helmholtz-Zentrum Berlin (HZB) and Masdar PV, a manufacturer of silicon-based films, may result in a module efficiency of more than 20%.
HZB's research on thin-film crystalline silicon created by liquid crystal crystallization (LPC) recently produced an open-circuit voltage of 582mV for glass-on-crystal silicon coated with a 10μm layer of silicon, paving the way for significantly higher component conversion efficiency.
Professor Bernd Rech of HZB said: “Thin-film crystalline silicon-based photovoltaics can achieve high efficiency and low material costs. Therefore, it combines the advantages of existing silicon crystalline silicon photovoltaic and thin film silicon technologies. In addition, Only thin-film crystalline silicon enables a large amount of usable materials. We believe that higher efficiency can be achieved than silicon crystalline silicon technology. On a long-term basis, we aim to achieve and exceed 20% of thin-film silicon technology."
Originally, HZB/PvcomB and Masdar PV were designed to combine LPC technology to produce 14% of the module's efficiency, although the partners only stated that this was a near-term goal.
Professor Rutger Schlatmann, head of HZB's PvcomB technology transfer division, added: "We expect thin-film crystalline silicon solar cells to achieve 14% efficiency in the short to medium term, and we believe in the possibility of rapid technological development in this area."
Masdar PV stated that it plans to transfer the technology to existing production facilities and will use the technology for its large-size (5.7 m2) substrates in the future.
Masuda PV Managing Director Tushita Ranchan said: “Investing in the development of next-generation thin-film silicon on glass to produce photovoltaic panels will allow us to better compete with existing crystalline PV producers, relying on economies of scale rather than importance. skill improved.
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