Perovskite quantum dot solar cells on the path to achieve 30% efficiency
Researchers in Iran have identified new ways to design perovskite quantum dot solar cells via a series of simulations. They investigated, in particular, how the perovskite absorbers can be gauged in order to enhance their electro-optical properties.
Ligand-free perovskite quantum dot solar cell with 9.3% efficiency
The quantum dots used for the device are based on methylammonium lead iodide and are synthesized within a porous silica (SiO2) matrix. Compared to its bulk counterparts, the ligand-free solar cell exhibited a more stable performance.
Flexible perovskite quantum dot solar cell with 15.1% efficiency
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.
Lead-free quantum dot solar cells with 10% efficiency
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.
Pushing quantum dots forward
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.
