Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss

Abstract

Operating in wet conditions The high efficiency of the complex organic molecule Spiro-OMeTAD as a hole-transporting material for perovskite solar cells requires the use of hygroscopic dopants that decrease stability. Jeong et al. synthesized hydrophobic fluorinated analogs of Spiro-OMeTAD as hole-transporting materials that have favorable shifting of the electronic state for hole extraction and used them to fabricate perovskite solar cells. A champion device had a certified power conversion efficiency of 24.8% and an open-circuit voltage near the Shockley-Queisser limit. These devices could maintain more than 87% of the original power conversion efficiency under 50% relative humidity for more than 500 hours. Science , this issue p. 1615

Keywords

Perovskite (structure)Energy conversion efficiencyMaterials scienceOpen-circuit voltageRelative humidityOptoelectronicsVoltageDopantChemical engineeringNanotechnologyDopingElectrical engineeringMeteorology

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Publication Info

Year: 2020
Type: article
Volume: 369
Issue: 6511
Pages: 1615-1620
Citations: 1444
Access: Closed

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APA Style

                            
                                
                                    Mingyu Jeong, 
                                
                                    In Woo Choi, 
                                
                                    Eun Min Go
                                
                                et al.
                            
                            (2020). 
                            Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss. 
                            Science
                            , 369
                            (6511)
                            , 1615-1620.
                            https://doi.org/10.1126/science.abb7167
                        

Identifiers

DOI: 10.1126/science.abb7167
PMID: 32973026

Data Quality

Data completeness: 81%