Treatment of commercial aluminum by Nd:YAG laser

Baziz L. , Nouiri A. — 2015-12-17T09:08:26Z

In this work, two types of commercial aluminum alloys (industrial and recovered aluminum) are studied. The surface is irradiated by Nd : Yag laser (λ = 532 nm, with a pulse duration of 15 ns and an energy of 50 mJ). The experimental results show that the hardness profile can be divided into three regions. The melted area is the hardest region, Then, the hardness decreases sharply in the interface region between the melted area and the heat-affected (...)

- Numero 00 / Aluminum Alloys, Laser treatment, Hardness

Photovoltaic applications of Light Beam Induced Current technique

Bazer-Bachi B., Blanc D., Kaminski A. , Lemiti M., Nouiri A., Sayad Y. — 2015-12-16T10:25:24Z

Light or Laser beam induced current technique (LBIC) is conventionally used to measure minority charge carrier's diffusion
length LD by scanning a light spot away from collector (abrupt pn junction or Schottky contact). We show here the necessary
precautions to be taken in order to apply this method on materials used in photovoltaics. We talk about SRLBIC or spectral
response LBIC when this technique is combined with spectral reflectivity to allow determination of cells quantum (...)

- Numero 00 / Solar cells, Diffusion length, LBIC, crystalline silicon, extended defects, surface passivation

WEBREVIEW

Treatment of commercial aluminum by Nd:YAG laser

Photovoltaic applications of Light Beam Induced Current technique