Recent progress in silicon-based solid-state solar cells

Mehmood, Haris; Tauqeer, Tauseef; Hussain, Shujaat

doi:10.1080/00207217.2018.1477191

Cited by 15 publications

(8 citation statements)

References 45 publications

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“…This is achieved by developing structures that improve light entrapment, being mainly based on silicon nanostructures, such as porous silicon, nanowires of silicon, and nano-silicon holes [29]. [30,31] proposes using a "seed layer" to obtain a high quality material, the use of ZnO and aluminum cladding as a method of improving light collection, and the use of high quality materials for the evaporation of the electron beam for the deposition of the absorbers, which offers a high potential for cost reduction, to obtain efficiency improvements and a reduction in costs. Another proposal is to use nanowire matrices to improve light entrapment and the design of the cell structure to minimize parasitic absorption, together with suppression of surface recombination, while using a multi-HIT configuration (hetero junction with intrinsic thin layer) core-based solar-based nanowire cells that were prepared in the thin film of low-cost pc-Si, developing an 8 µm pc-Si cell [32].…”

Section: Thin Film and Polycrystallinementioning

confidence: 99%

Coatings in Photovoltaic Solar Energy Worldwide Research

et al. 2019

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This paper describes the characteristics of contributions that were made by researchers worldwide in the field of Solar Coating in the period 1957–2019. Scopus is used as a database and the results are processed while using bibliometric and analytical techniques. All of the documents registered in Scopus, a total of 6440 documents, have been analyzed and distributed according to thematic subcategories. Publications are analyzed from the type of publication, field of use, language, subcategory, type of newspaper, and the frequency of the keyword perspectives. English (96.8%) is the language that is most used for publications, followed by Chinese (2.6%), and the rest of the languages have a less than < 1% representation. Publications are studied by authors, affiliations, countries of origin of the authors, and H-index, which it stands out that the authors of China contribute with 3345 researchers, closely followed by the United States with 2634 and Germany with 1156. The Asian continent contributes the most, with 65% of the top 20 affiliations, and Taiwan having the most authors publishing in this subject, closely followed by Switzerland. It can be stated that research in this area is still evolving with a great international scientific contribution in improving the efficiency of solar cells.

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Section: Thin Film and Polycrystallinementioning

confidence: 99%

Coatings in Photovoltaic Solar Energy Worldwide Research

et al. 2019

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“…Hybrid lead halide perovskites have attracted great attention in recent years because of their pronounced progress in optoelectronic applications. , After 9 years of development, the power conversion efficiency (PCE) of perovskite solar cells (PSC) based on these materials increased from 3.9 to 25.2%, which is comparable with that of traditional silicon-based solar cells . However, the toxicity problem of lead halide perovskites limits their practical large-scale commercialization .…”

Section: Introductionmentioning

confidence: 99%

Influence of Ion Migration from ITO and SiO₂ Substrates on Photo and Thermal Stability of CH₃NH₃SnI₃ Hybrid Perovskite

et al. 2020

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The influence of light soaking and heat stress on the degradation of indium tin oxide (ITO)/CH3NH3SnI3 and SiO2/CH3NH3SnI3 hybrid perovskite is studied. The measurements of X-ray photoelectron survey spectra (XPS) showed an increase in the concentration of substrate ions in the surface layer of ITO/CH3NH3SnI3 and reduction of N:Sn and I:Sn ratios after 500 h of white light irradiation and 200 h of annealing at 90 °C. The high-energy-resolved XPS Sn three-dimensional (3d) spectra of ITO/CH3NH3SnI3 indicated a consistent increase in the contribution of Sn4+ ions at these exposure times under light soaking and heat stress. Scanning electron microscopy (SEM) measurements show a violation of the continuity of the perovskite layer with the exposure time and an increase in the size of the voids, which is consistent with the indicated changes in the XPS spectra. On the other hand, we consider the effect of irradiation and annealing on the diffusion of the substrate elements and their chemical interaction with the overlying perovskite layers. The XPS Sn 3d, O 1s, and valence band (VB) measurements and density functional theory (DFT) calculations reveal that at the initial stages of CH3NH3SnI3 degradation, the SnI4 phase separation occurs and with a further increase in exposure time, tin is oxidized to form a SnO2 phase. In addition, we found that CH3NH3SnI3 perovskite prepared on a SiO2 substrate is more stable than on an ITO substrate, and the effect of the oxidation of tin atoms due to the migration of oxygen ions is very weak. The theoretical modeling demonstrates that the formation of SnI2 defects in CH3NH3SnI3 became irreversible due to the oxidation by the migration of the oxygen ions from the substrate. The calculated formation energy of an oxygen vacancy in ITO is about 2 times smaller than in SiO2 that explains the instability of ITO/CH3NH3SnI3.

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“…The efficiency of monocrystalline solar panels is in the range of 25–30%. [ 10 ] Whereas, polycrystalline solar panels are made up of more than one crystalline material and their atoms are not uniformly distributed in their crystalline structure. As a result, the efficiency of polycrystalline solar panels is in a range of 16–20%.…”

Section: Introductionmentioning

confidence: 99%