Study In Transient Regime Of A Silicon Solar Cell: Influence Of Temperature And Magnetic Field
Bibliographic record
Abstract
A study of the effect of temperature and magnetic field on the transient decay of the excess minority carrier density and on the electrical parameters in the base of a parallel vertical junction solar cell, in transient dynamic regime operation, and under polychromatic illumination is presented.The experimental device that allows us to have the transient regime and its operating principle is presented.The resolution of the continuity equation of the minority carriers of charges in the base and the determination of the eigenvalues make it possible to determine the transient density which is a sum of infinite terms and whose time of decay of the various harmonics is studied.The transient voltage, the photocurrent density and the transient capacitance of the solar cell are deduced from the expression of the transient density of minority carriers of excess charges in the base.Indeed, the influence of the optimum temperature on the amplitudes and on the transient decrease of these electrical parameters is also studied.This optimum temperature is obtained by determining the optimum thickness of the solar cell from a given magnetic field.Indeed, as the temperature increases, there will be thermal agitation resulting in an accumulation of carriers at the junction and therefore a reduction in carrier mobility.If there is thermal agitation, the minority carriers will take longer to cross the junction.The stationary regime will therefore be reached late, hence t0 increases with the increase in temperature.This work allowed us to observe that in the first moments of decay, the diffusion capacity is minimal, which leads to a rapid but brief drop in amplitudes because with a recombination velocity in short-circuit, a large number of Minority charge carriers in the base pass through the space charge region to participate in photocurrent generation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".