Internal Electric Field in Light-Degraded p-i-n a-Si:H Solar Cells

1993 ◽  
Vol 297 ◽  
Author(s):  
Franc Smole ◽  
JoŽe Furlan ◽  
Marko TopiČ
Keyword(s):  
Computer Simulation ◽  
Solar Cell ◽  
Electric Field ◽  
Cell Structure ◽  
Internal Electric Field ◽  
Continuity Equations ◽  
Solar Cell Structure ◽  
Small Intensity ◽  
Monochromatic Illumination ◽  
Complex Density

Based on results of a-Si:H solar cell computer simulation solving numerically the Poisson, transport and continuity equations, using a rather complex density of states distribution being in agreement with experimental observations, shows that light-soaking degradation can be attributed to both, light induced effects in heterojunction region and to changes in the i-layer, which together tend to reduce the built-in electric field inside of the i-region. Measurements of spectral sensitivity using small intensity monochromatic illumination in combination with an accurate computer analysis provides the possibility of ascertaining which of the degrading effects is the dominating one in a particular a-Si:H solar cell structure.

Investigation of V-groove fabricated GaInNAs nipi solar cell structure

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
Agageldi Muhammetgulyyev ◽  
Yeşim Yalçın ◽  
Furkan Kuruoğlu ◽  
Erman Çokduygulular ◽  
Barış Kınacı ◽  
...  
Keyword(s):  
Solar Cell ◽  
Cell Structure ◽  
Solar Cell Structure

scholarly journals Investigation of the Carrier Movement through the Tunneling Junction in the InGaP/GaAs Dual Junction Solar Cell Using the Electrically and Optically Biased Photoreflectance Spectroscopy

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 638
Author(s):  
Sanam SaeidNahaei ◽  
Hyun-Jun Jo ◽  
Sang Jo Lee ◽  
Jong Su Kim ◽  
Sang Jun Lee ◽  
...  
Keyword(s):  
Solar Cell ◽  
Electric Field ◽  
Electric Fields ◽  
Bias Voltage ◽  
Tunnel Junction ◽  
Photogenerated Carrier ◽  
Internal Electric Field ◽  
Junction Solar Cell ◽  
Photoreflectance Spectroscopy ◽  
Dc Bias

For examining the carrier movements through tunnel junction, electrically and optically-biased photoreflectance spectroscopy (EBPR and OBPR) were used to investigate the internal electric field in the InGaP/GaAs dual junction solar cell at room temperature. At InGaP and GaAs, the strength of p-n junction electric fields (Fpn) was perturbed by the external DC bias voltage and CW light intensity for EBPR and OBPR experiments, respectively. Moreover, the Fpn was evaluated using the Fast Fourier Transform (FFT) of the Franz—Keldysh oscillation from PR spectra. In the EBPR, the electric field decreased by increasing the DC bias voltage, which also decreased the potential barrier. In OBPR, when incident CW light is absorbed by the top cell, the decrement of the Fpn in the GaAs cell indicates that the photogenerated carriers are accumulated near the p-n junction. Photogenerated carriers in InGaP can pass through the tunnel junction, and the PR results show the contribution of the modification of the electric field by the photogenerated carriers in each cell. We suggest that PR spectroscopy with optical-bias and electrical-bias could be analyzed using the information of the photogenerated carrier passed through the tunnel junction.

scholarly journals High-performance ultraviolet-visible tunable perovskite photodetector based on solar cell structure

2017 ◽  
Vol 60 (5) ◽  
pp. 407-414 ◽  
Author(s):  
Mengni Xue ◽  
Hai Zhou ◽  
Yang Xu ◽  
Jun Mei ◽  
Lu Yang ◽  
...  
Keyword(s):  
Solar Cell ◽  
High Performance ◽  
Cell Structure ◽  
Solar Cell Structure

Identification of defect types in moderately Si-doped GaInNAsSb layer in p-GaAs/n- GaInNAsSb/n-GaAs solar cell structure using admittance spectroscopy

2012 ◽  
Vol 112 (11) ◽  
pp. 114910 ◽  
Author(s):  
Muhammad Monirul Islam ◽  
Naoya Miyashita ◽  
Nazmul Ahsan ◽  
Takeaki Sakurai ◽  
Katsuhiro Akimoto ◽  
...  
Keyword(s):  
Solar Cell ◽  
Cell Structure ◽  
Admittance Spectroscopy ◽  
Solar Cell Structure ◽  
Si Doped

scholarly journals DYNAMIC RESEARCH OF SOLAR CELLS / DINAMINIS SAULĖS ELEMENTO TYRIMAS

2017 ◽  
Vol 8 (6) ◽  
pp. 549-522
Author(s):  
Vytautas Makarskas ◽  
Mindaugas Jurevičius ◽  
Artūras Kilikevičius
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Solar Cell ◽  
Modal Analysis ◽  
Cell Structure ◽  
Mechanical Vibrations ◽  
Maintenance Costs ◽  
Solar Cell Structure ◽  
Cell Stability ◽  
Renewable Energy Generation

Solar cells are one of the most popular renewable energy generation technologies, because they are reliable, low operating and maintenance costs, to conclude without any moving parts and is a boundless source of energy. In any solar cell can avoid mechanical vibrations, which may produce the solar cell glass, damage to the inner structure. In order to determine the influence of mechanical vibrations of the solar cell structure was carried out theoretical and experimental modal analysis. The study found dangerous solar cell frequencies and their deformation and optimize the method of attachment which provides a better solar cell stability. Saulės elementai – vieni populiariausių atsinaujinančių energijos gavybos technologijų, nes jie patikimi, jų mažos eksploatavimo ir priežiūros išlaidos, šie elementai sudaryti be jokių judančių dalių ir yra beribis energijos šaltinis. Bet saulės elementas neišvengia mechaninių virpesių, kurie gali įskelti saulės elemento stiklą, pažeisti vidinę konstrukciją. Siekiant nustatyti mechaninių virpesių įtaką saulės elemento konstrukcijai, buvo atliktos teorinės ir eksperimentinės modalinės analizės. Tyrime buvo rasti pavojingi saulės elemento dažniai ir jų deformacijos, rastas optimalus tvirtinimo būdas, kuris suteikia geresnį saulės elemento stabilumą.

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