The Effects of Matching Iranian EFL Learners' and Teachers' Personality Types on the Student's Oral Skill Achievement

A lot of research has been done on the importance of paying attention to individuals in the language classroom. Part of the individuality refers to learner's personality traces which describe why they learn differently. On the other hand, the teachers themselves have stable preferences in their teaching .This is, to a large expense,  related to their personality type which is also important when one is talking about the importance of their tailoring to different personalities in the classroom. Therefore, it may be beneficial to determine the teachers' personality type and the way they are matched to that of the students and the pattern of its effects on student's achievement in the classroom. The purpose of the present study is to determine whether there is any significant difference between oral achievement of Iranian EFL learners whose personality types are matched with that of their teacher, and oral achievement of Iranian EFL learners whose personality types are not matched with that of their teachers. The subjects were chosen from the students majoring in English language at Yazd University. To determine the personality types of the teachers and the students, the Myers-Briggs Type Indicator (MBTI) .The result of data analysis shows that the similarity of learners' and teachers' personalities has a significant effect on their oral achievement. The findings of this study can be used in teacher education. The students and teachers should be aware of their own personality types and the way it can affect the students' learning in the classroom. They can be taught different activities suitable for each personality type as stated by some researchers

Molecularly engineered hole-transport material for low-cost perovskite solar cells

Organic hole transport materials (HTMs) strongly affect the cost of efficient perovskite solar cells. In this work, a newly engineered HTM based on triphenylamine is proposed as a cheap alternative to efficient organic HTMs (e.g., spiro-OMeTAD)

Dye-Sensitized Nanocrystalline ZnO Solar Cells Based on Ruthenium(II) Phendione Complexes

The metal complexes (RuII (phen)2(phendione))(PF6)2(1), [RuII (phen)(bpy)(phendione))(PF6)2 (2), and (RuII (bpy)2(phendione))(PF6)2 (3) (phen = 1,10-phenanthroline, bpy = 2,2′-bipyridine and phendione = 1,10-phenanthroline-5,6-dione) have been synthesized as photo sensitizers for ZnO semiconductor in solar cells. FT-IR and absorption spectra showed the favorable interfacial binding between the dye-molecules and ZnO surface. The surface analysis and size of adsorbed dye on nanostructure ZnO were further examined with AFM and SEM. The AFM images clearly show both, the outgrowth of the complexes which are adsorbed on ZnO thin film and the depression of ZnO thin film. We have studied photovoltaic properties of dye-sensitized nanocrystalline semiconductor solar cells based on Ru phendione complexes, which gave power conversion efficiency of (η) of 1.54% under the standard AM 1.5 irradiation (100 mW cm−2) with a short-circuit photocurrent density (sc) of 3.42 mA cm−2, an open-circuit photovoltage (oc) of 0.622 V, and a fill factor (ff) of 0.72. Monochromatic incident photon to current conversion efficiency was 38% at 485 nm

Separation of Functionalized 5,6-Disubstituted-1,10-Phenanthroline for Dye-Sensitized Solar Cell Applications

5,6-Epoxy-1,10-phenanthroline is used as a convenient starting material for 5-hydroxy-6-Aryl-1,10-phenanthroline ligands containing carboxylic and sulfonic groups useful for further anchoring of the sensitizer on TiO2 for dye-sensitized solar cells (DSCs). Based on the crystal growth of the mixture of products, a convenient separation route for the extension of the p-system on 5,6-disubstituted-1,10-phenanthroline was used to develop a novel series of functionalized 1,10-phenanthroline ligands with electron-withdrawing end-capping group. Also, we report the epoxy opening of 5,6-epoxy-1,10-phenanthroline by aromatic amines stoichiometrically in refluxing water and ethanol in the absence of any catalyst. The dyes were characterized by 1H-NMR, FT-IR, UV-Vis, and X-ray single crystal diffraction analyses. It crystallizes in the monoclinic space group C 2/c, a = 20.920(4) Å, b = 10.340(2) Å, c = 16.187(3) Å, β = 92.30(3)°, V = 3498.6(12) Å3, and Z = 8. The reaction details and features were described in detail