Efficient and novel Sb₂ S₃ based solar cells with chitosan/poly(ethylene glycol)/electrolyte blend

Abstract

Summary We present here a novel solar cell made of ITO/composite p‐doped Sb2S3 + P3HT + PANI+TiO2/amorphous Sb2S3 + P3HT + PANI + TiO2/n‐doped Sb2S3 + P3HT + PANI + TiO2/solid carrier/aluminum as counter electrode. With spraying technique, the layers were deposited and the thickness of films was 1 μm. A new solid carrier of electrolyte was a blend consisted of chitosan (low MW), polyethylene glycol and electrolyte. X‐ray diffraction was recorded to confirm the amorphous nature of the blend. Information about the surface appearance and roughness of a solid carrier dry and soaked in the electrolyte was given by atomic force microscopy. The solar cell was examined at very low and low light intensity (5% and 35% of sun, respectively), and at standard test conditions (100% of sun) using different light sources. The whole cell surface was 7.5 cm2 while the illuminated part was 3 cm2. Obtained results expressed for the illuminated surface showed the highest efficiency of 23.1% at 5% of sun while the efficiency of the cell was 2.9% at 35% of sun and only 0.75% at intensity of 100% of sun.

Microstructural and Optical Properties of Sb2S3 Film Thermally Evaporated from Antimony Pentasulfide and Efficient Planar Solar Cells

“…Sb 2 Se 3 has a low bandgap of 1.2 eV for efficient light absorption, while Sb 2 S 3 exhibits a tunable bandgap (1.5–1.7 eV) with high absorption coefficient in visible light region (1.8 × 10 5 cm −1 at 450 nm), which is close to the optimal bandgap for solar cells application . Moreover, the Sb 2 S 3 ‐based solar cells have good photovoltaic performance in weak light illumination conditions, which makes them possible to achieve efficient power conversion in cloudy weather, indoor conditions, and on building walls . Therefore, the research on Sb 2 S 3 solar cells is of high value for next generation photovoltaics.…”

The influence of the water flow lens system on the operating characteristics of monocrystalline and amorphous Si‐solar cells for outdoor and indoor use: The photovoltaic improvement

“…On the other hand, the truth is that in the indoor environment, the spectral composition deviates greatly from AM 1.5, which can be seen in Figure 1b, 16 where the deviations in their spectra are more than evident. In all our previous publications, 15–17,57–62 it has been seen that even tiny differences in the spectrum have quite a pronounced and improved influence, primarily on current, voltage, and efficiency, and these observations included our designed Sb 2 S 3 ‐based, dye‐sensitized, and silicon cells. As a result, the different spectra of each of these lamps, which “well simulate outdoor radiation,” can have a significant impact on photovoltaic performance.…”

Amorphous non-doped and Se-, Cu-, and Zn-doped Sb2S3 nanoparticles prepared by a hot-injection method: bandgap tuning and possible observation of the quantum size effect

“…In the last decade, we synthesized various non-doped and different-ion doped Sb2S3 nanomaterials in the form of powders and applied them to different solar device architectures [18][19][20][21][22][23][24][25][26][27]. In recent years, a wide range of doping elements and techniques have been experimentally applied to Sb2S3 semiconductors for use in thin films and solar cells [28][29][30][31], although synthesized non-doped and doped Sb2S3 nano-powders for solar device applications are still unknown to us.…”