Solution-processable two-dimensional hexagonal copper indium selenide semiconductors (opens in new tab)

Solution-processable two-dimensional semiconductors could be used for the cost-effective fabrication of large-area electronic devices. However, compared with two-dimensional materials made using high-temperature chemical vapour deposition methods, they exhibit much lower electrical performance. Here we report the solution-processable fabrication of wafer-scale two-dimensional layered copper indium selenide (CuIn5Se8) semiconductors with high mobility values. The air-stable solution-based ink ...