6533b7dbfe1ef96bd1270132
RESEARCH PRODUCT
Tunable Wide‐Bandgap Monohalide Perovskites
Ana M. Igual-muñozMichele SessoloHenk J. BolinkFrancisco PalazonYousra El Ajjourisubject
Materials sciencebusiness.industryBand gap02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences7. Clean energyAtomic and Molecular Physics and Optics0104 chemical sciencesElectronic Optical and Magnetic MaterialsPhotovoltaicsOptoelectronics0210 nano-technologybusinessMaterialsCèl·lules fotoelèctriquesdescription
Herein the mechanochemical synthesis of inorganic as well as hybrid organic-inorganic monohalide perovskites with tunable bandgaps is reported. It is shown that the bandgap bowing known for iodide mixed Sn-Pb perovskites is also present in the pure bromide analogous. This results in technologically very interesting materials with bandgaps in the range of 1.7-1.9 eV. Similar bandgap perovskites are typically achieved by mixing two halides that are prone to segregate over time. This limits the achievable open circuit voltage. For monohalide perovskites this problem is eliminated, making these materials especially promising wide bandgap absorbers for tandem solar cells. Perovskite Thin-film Photovoltaics (PERTPV) Hetero-structures for Efficient Luminescent Devices (HELD)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-05-28 | Advanced Optical Materials |