Mixed three-dimensional and two-dimensional perowskites and methods for their production
Patent Information
- Application Number
- DE602019077000
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2018-09-14
- Filing Date
- 2019-09-16
- Publication Date
- 2025-10-15
- Estimated Expiration
- 2039-09-16
AI Technical Summary
Existing polycrystalline thin-film tandem solar cells, particularly those using perovskite/CIGS configurations, face efficiency limitations due to the lack of efficient wide-bandgap perovskite materials, leading to suboptimal performance below the theoretical potential of 40% efficiency.
Development of perovskite materials with tailored compositions, including additives like phenylethyl ammonium iodide (PEAI) and lead thiocyanate (Pb(SCN)2, to enhance film quality, reduce defects, and increase carrier mobility, resulting in a wide-bandgap perovskite top cell with improved performance.
The use of additives in perovskite production yields a 1.68 eV perovskite top cell with 20% efficiency, enabling a 26.5% efficient polycrystalline perovskite/CIGS tandem solar cell, surpassing previous efficiency benchmarks.