Method for preparing perovskite film and solar cell thereof
AssigneeNational Central University
InventorsChun-Guey WU, Chien-Hung CHIANG
Life of this patent
Estimating the term…
Abstract
A method for preparing a perovskite film includes the steps of applying a first solution on a substrate to form a film by spin coating and applying a second solution on the film made from the first solution by spin coating to form the perovskite film. The perovskite film is expressed by a general formula of ABX3. The solute of the first solution at least contains one of AX and BX2. The solute of the second solution at least contains one of AX and BX2. A method for preparing the solar cell using the perovskite film as the active layer (absorber) is also disclosed.
Claims11
A method for preparing a perovskite film, comprising steps of:
- applying a first solution on a substrate to form a film by spin coating;
- and
- applying a second solution on the film made from the first solution to form the perovskite film, which is expressed by a general formula of ABX3 by spin coating,
- wherein the solute of the first solution at least contains one of AX and BX2, and the solute of the second solution at least contains one of AX and BX2.
A method for preparing a solar cell using a perovskite film as an active layer, comprising steps of:
- providing a conductive material;
- forming a first carrier transport layer on the conductive material;
- applying a first solution on the first carrier transport layer to form a film by spin coating;
- applying a second solution on the film made from the first solution to form the perovskite film, which is expressed by a general formula of ABX3 by spin coating;
- forming a second carrier transport layer on the perovskite film;
- and
- forming an electrode layer on the second carrier transport layer,
- wherein the solute of the first solution at least contains one of AX and BX2, and the solute of the second solution at least contains one of AX and BX2.
Dependencies are inferred from the claim text.