97/02052 Minority carrier controlled PEC solar cells, using n-Si electrodes modified with LB layers of ultrafine Pt particles

1997 ◽  
Vol 38 (3) ◽  
pp. 166
1996 ◽  
Vol 43 (3) ◽  
pp. 311-318 ◽  
Author(s):  
Shinji Yae ◽  
Morio Fujitani ◽  
Isao Nakanishi ◽  
Masahiro Uetsuji ◽  
Ryo Tsuda ◽  
...  

1995 ◽  
Vol 403 ◽  
Author(s):  
R. Venkatasubramanian ◽  
B. O'Quinn ◽  
J. S. Hills ◽  
M. L. Timmons ◽  
D. P. Malta

AbstractThe characterization of MOCVD-grown GaAs-AlGaAs materials and GaAs p+n junctions on poly-Ge substrates is presented. Minority carrier lifetime in GaAs-AIGaAs double-hetero (DH) structures grown on these substrates and the variation of lifetimes across different grainstructures are discussed. Minority-carrier diffusion lengths in polycrystalline GaAs p+-n junctions were evaluated by cross-sectional electron-beam induced current (EBIC) scans. The junctions were also studied by plan-view EBIC imaging. Optimization studies of GaAs solar cell on poly-Ge are discussed briefly. The effect of various polycrystalline substrate-induced defects on performance of GaAs solar cells are presented.


2007 ◽  
Vol 12 (7-8) ◽  
pp. 913-917 ◽  
Author(s):  
T. M. W. J. Bandara ◽  
M. A. K. L. Dissanayake ◽  
O. A. Ileperuma ◽  
K. Varaprathan ◽  
K. Vignarooban ◽  
...  

2019 ◽  
Vol 125 ◽  
pp. 14015
Author(s):  
Indriana Kartini

Solar cells have been the queen of alternative renewable energy for the earth. From silicon-based solar cells to the new generation of perovskite-based solar cells, the choice and performance of the materials of the corresponding cells are still the focus of research interest. Amongst, photoelectrochemical (PEC) solar cells trigger the use and exploration of nanomaterials to boost their cell’s performance. This short review focus on the development of nanomaterials used for PEC, from nanoparticles to the one-dimensional titanium dioxide (titania) such as nanofibers and nanotubes, as well as the hybrid system with the perovskite halide. The search for light-harvesting materials is also included especially natural dyes. The review ends with a strategy to marry the natural dyes' potential with the sophisticated structure of nanomaterials to result in an efficient natural dyes PEC solar cells.


Solar RRL ◽  
2017 ◽  
Vol 1 (9) ◽  
pp. 1700100 ◽  
Author(s):  
Tim Frijnts ◽  
Natalie Preissler ◽  
Stefan Gall ◽  
Sebastian Neubert ◽  
Bernd Rech ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5303
Author(s):  
Xiaoxuan Li ◽  
Aimin Liu

Interdigitated back contact (IBC) n-type silicon solar cells with a different front surface layer doping concentration were fabricated and studied and the influence of the front surface doping level was analyzed via simulation (PC1D). The IBC cells were processed by industrially feasible technologies including laser ablation and screen printing; photolithography was not used. A maximum efficiency of up to 20.88% was achieved at an optimal front surface field (FSF) peak doping concentration of 4.8 × 1019 cm−3 with a sheet resistance of approximately 95 Ω/square, corresponding to Jsc = 40.05 mA/cm2, Voc = 671 mV and a fill factor of 77.70%. The effects of the front surface doping level were studied in detail by analyzing parameters related to carrier transmission mechanisms such as minority carrier concentration, minority carrier lifetime and the saturation current density of the FSF (J0e). The influence of the front surface recombination velocity (FSRV) on the performance of IBC solar cells with different FSF layer doping concentrations was also investigated and was verified by examining the variation in the minority carrier density as a function of the distance from the front surface. In particular, the impact of the FSF doping concentration on the Jsc of the IBC cells was clarified by considering carrier transmission mechanisms and the charge-collection probability. The trends revealed in the simulations agreed with the corresponding experimental data obtained from the fabricated IBC solar cells. This study not only verifies that the presented simulation is a reasonable and reliable guide for choosing the optimal front surface doping concentration in industrial IBC solar cells but also provides a deeper physical understanding of the impact that front surface layer doping has on the IBC solar cell performance considering carrier transmission mechanisms and the charge-collection probability.


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