From Solar Cells to LEDs, Improvements in Perovskite-Based Technology Accelerate

In just seven years of development, the efficiency of the perovskite solar cell has increased to the point where it rivals — and could soon overtake — the efficiency of the conventional photovoltaic cell. However, the perovskite structure continues to experience stability issues, causing these cells to degrade quickly and shortening their lifespans. Scientists at Okinawa Institute of Science and Technology (OIST) have identified degradation factors and developed a potential solution to improving perovskite solar cell architecture. For the manufacture of perovskite LEDs, OIST researchers investigated an all-vapor growth process by chemical vapor deposition (CVD). According to the team, there are many advantages to preparing perovskites using a vapor-based growth process, including ease of patterning, ability to batch process and material compatibility.