Cross-sectional SEM image; J-V curves with 100 millisecond scan delay times from Enhancing the efficiency of planar heterojunction perovskite solar cells via interfacial engineering with 3-aminopropyl trimethoxy silane hydrolysate

Fig. S1 Cross-sectional SEM image of the fabricated cell by inserting PCBM as modified layer.; Fig. S2 J-V curves with 100 millisecond scan delay times of the best perovskite solar cells fabricated with (a) bare TiO2, (b) PCBM-treated TiO2 and (c) APMS-hydrolysate-treated TiO2, measured under forward and reverse scan. Comparison of the curves under (d) forward scan and (e) reverse scan

Structural and Photophysical Studies on Geometric (Er₂Yb₂/Yb₂Er₂) and Configurational (EuTb₃/Eu₃Tb) Isomers of Heterotetranuclear Lanthanide(III) Complexes

Heterotetranuclear geometrical (Er₂Yb₂/Yb₂Er₂) and configuational (EuTb₃/Eu₃Tb) isomeric lanthanide­(III) complexes have been synthesized and characterized by spectroscopy as well as X-ray crystallography. The geometric Er₂Yb₂/Yb₂Er₂ isomers exhibit dual emissions from both erbium­(III) and ytterbium­(III) ions. For the EuTb₃/Eu₃Tb configurational isomers, the Tb^III subunits transfer energy to the Eu^III centers in the EuTb₃ complex, whereas the Tb^III ion in the TbEu₃ complex serves mainly as a structural stabilizer