Japanese scientists build heterojunction solar cell based on titanium dioxide, selenium

Scientists in Japan developed a 4. 49%-efficient solar cell based on titanium dioxide, selenium. The devices is based on a new approach aimed at reducing interfacial recombination and increasing open-circuit voltage and efficiency. Researchers at the Ritsumeikan University in Japan have fabricated a heterojunction solar cell that utilizes a window layer made of titanium oxide (TiO2) and an absorber based on selenium (Se). The novel device relies on a new architecture that reportedly increases the typical "insufficient" shunt resistance that characterizes these PV cells. "We developed an innovative ...

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