1,721,264 research outputs found
Atomic layer deposition of Al2O3 for industrial local Al back-surface field (BSF) solar cells
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Influence of surface conditioning and passivation schemes on the internal rear reflectance of bulk silicon solar cells
No full textSpatially separated atomic layer deposition of Al2O3, a new option for high-throughput Si solar cell passivation
No full textLow-temperature admittance spectroscopy for defect characterization in Cu(In,Ga)(S,Se)2 thin-film solar cells
No full textWe present a methodology to use low-temperature admittance measurements for characterizing defects in thin-film Cu(ln,Ga)(S,Se)2 solar cells, which is a major step towards increased performance. We develop the theory behind admittance spectroscopy at both room and low temperature, focusing on the so-called “loss-map” graphical representation. It allows to distinguish the entangled responses of different loss mechanisms and, combined with SCAPS 1- D simulations, leads to a refined interpretation of experimental admittance measurements. Using this methodology on experimental measurements, we identify the likely presence of an interface defect, and extract its activation energy (EA=0.093eV) and capture cross-section (σ=2.88⋅10−18cm2)
A deep level transient spectroscopy comparison of the SiO2/Si and Al2O3/Si interface states
No full textA deep level transient spectroscopy comparison of the SiO2/Si and Al2O3/Si interface states
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