The importance of crystallization methods in solar cell silicon ingot quality. The effects of the Czochralski (Cz) and directional solidification (DS) methods on microstructure and defects are reported. Challenges in monocrystalline and multicrystalline silicon ingot production are discussed.
Photovoltaic silicon ingots can be grown by different processes depending on the target solar cells: for monocrystalline silicon-based solar cells, the preferred choice is the Czochralski (Cz) process, while for multicrystalline silicon-based solar cells directional solidification (DS) is preferred.
In this work, we have described the main crystallization processes for monocrystalline and multicrystalline silicon ingots for solar cell applications, namely the Czochralski process and direction solidification method. The main challenges of the Cz process have been discussed.
Reasonable and efficient recycling of waste crystalline silicon (c-Si) photovoltaic (PV) modules benefits environmental protection and resource conservation. The liberation and separation of solar cells in modules is the key to achieving effective recycling.
This work aims at the efficient liberation and separation of glass particles and solar cells from damaged waste PV modules. Two common liberation techniques, pyrolysis, and mechanical crushing, were applied. They were contrasted in terms of product particle size distribution and characteristics.
Recycling waste crystalline silicon photovoltaic modules by electrostatic separation J. Sustain. Metall., 4 ( 2018), pp. 176 - 186, 10.1007/s40831-018-0173-5