Patent ID: 11968886
Assignee: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
Field: nan (nan)
Classification: CPC H  Y | IPC H

Claim 1:
2. A preparation method of a photovoltaic device comprising the perovskite film based on SEM-HCl additive as claimed in claim 1, comprising: preparing a first electrode layer on a substrate layer, preparing a first transport layer on the first electrode layer, preparing a photoactive layer based on SEM-HCl additive on the first transport layer by using an annealing process, preparing a second transport layer on the photoactive layer, preparing a barrier layer on the second transport layer and preparing a second electrode layer on the barrier layer;
wherein the first electrode layer is a metal oxide anode layer, the first transport layer is a hole transport layer, the photoactive layer is the perovskite film, the second transport layer is an electron transport layer, the barrier layer is a hole barrier layer, and the second electrode layer is a metal cathode layer; and
wherein the annealing process comprises: placing the first transport layer on a hot stage with a temperature of 70° C., and performing an annealing treatment on the first transport layer for 10 min.