A kind of preparation method of large-grain iodide perovskite film
A technology of iodide and perovskite, which is applied in the field of preparation of large-grain iodide perovskite thin films, can solve the problems of small grain size and poor grain uniformity of perovskite thin films, and achieve large grain size , The film thickness is easy to control, and the effect of film coverage is good
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0023] (1) CH 3 NH 3 I and PbI 2 After equimolar amounts were mixed, methanol was added, and the reaction was ultrasonically treated for 30 minutes to obtain a yellow precipitate of methylamine lead iodide. Remove the supernatant, heat the yellow precipitate at 100-120°C to remove excess methanol, and grind the dry powder under nitrogen protection to obtain methylamine lead iodide perovskite particles, which are dispersed in pine In oleyl alcohol, a precursor solution with a concentration of 1 mol / L was obtained.
[0024] (2) Spin-coat the dense layer and the porous layer on the surface of the cleaned FTO glass sheet respectively. The spin-coating conditions are 10s at a low speed of 1000rpm, then 40s at a high speed of 5000rpm, and then annealing treatment. The treatment temperature is 100°C and the time is 1h. .
[0025] (3) Spin-coat the precursor solution onto the FTO glass substrate layer. The spin-coating conditions are 10s at a low speed of 1000rpm, 35s at a high sp...
Embodiment 2
[0027] (1) CH 3 NH 3 I and PbI 2 After equimolar amounts were mixed, methanol was added, and the reaction was ultrasonically treated for 30 minutes to obtain a yellow precipitate of methylamine lead iodide. Remove the supernatant, heat the yellow precipitate at 100-120°C to remove excess methanol, and grind the dry powder under nitrogen protection to obtain methylamine lead iodide perovskite particles, which are dispersed in pine In oleyl alcohol, a precursor solution with a concentration of 1 mol / L was obtained.
[0028] (2) Spin-coat the dense layer and the porous layer on the cleaned FTO glass surface respectively. The spin-coating conditions are 10s at a low speed of 1000rpm, then 40s at a high speed of 5000rpm, and then annealed at a temperature of 100°C for 1h.
[0029] (3) Spin-coat the precursor solution onto the FTO glass substrate layer. The spin-coating condition is 10s at a low speed of 1000rpm, 35s at a high speed of 6000rpm, and then annealed at 120°C to remov...
PUM
Property | Measurement | Unit |
---|---|---|
current density | aaaaa | aaaaa |
open-circuit voltage | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com