An international research team has developed a PV cell with all-inorganic cesium-lead iodide (CsPbI3) perovskite. The scientists added phenyl-C61-butyric acid methyl ester (PCBM), one of the best electron acceptors in organic PV cells, into the CsPbI3 quantum dot layer.
Scientists in the United States have created a quantum dot solar cell which has a photon-to-electron conversion efficiency of 85%. The device is also said to exhibit remarkable defect tolerance and toxic-element-free composition.
Scientists in Korea have investigated performance degradation in quantum dot solar cells – an important consideration for a technology that has seen rapid efficiency increases in recent months. The group found surface oxidation of quantum dot material represents a significant threat to longer-term performance and the researchers suggest that an additional layer in the cell could solve the problem.