Search results for " heterojunction"
showing 3 items of 43 documents
ORGANOTIN(IV)-PORPHINATE FOR PHOTOVOLTAIC BULK HETEROJUNCTIONS
2013
Due to the versatility and variability of their molecular structures, optical spectra, electrical properties, and supramolecular organization potential, porphyrins related compounds have been widely studied in organic solar cells [1,2]. Indeed, these applications are a natural function for these compounds, and they have been extensively investigated in a variety of formats including single molecules, macromolecular and supramolecular structures. In this work, poly(hexylthiophene) (P3HT) and organotin(IV)-[meso-tetra(4-carboxyphenyl) porphinate] have been employed for engineering planar and bulk heterojunctions by layer by layer deposition. Improving the overall efficiencies of photovoltaic …
Effect of the Si doping on the properties of AZO/SiC/Si heterojunctions grown by low temperature pulsed laser deposition
2020
Abstract The structural and photoelectrical properties of Al-doped ZnO (AZO)/SiC/p-Si and AZO/SiC/n-Si heterojunctions, fabricated at low temperature by pulsed laser deposition, were investigated by means of a number of techniques. Raman analysis indicates that SiC layers have the cubic 3C-SiC phase, whilst X-ray diffraction measurements show that AZO films exhibit a hexagonal wurtzite structure, highly textured along the c-axis, with average crystallites size of 35.1 nm and lattice parameter c of 0.518 nm. The homogeneous and dense surface morphology observed by scanning electron microscopy was confirmed by atomic force microscopy images. Moreover, UV–Vis-NIR spectra indicated a high trans…