Advanced nanoparticles synthesis by laser pyrolysis for energy production and storage

Yann Leconte (1)

1 LEDNA - Laboratoire Edifices Nanométriques

Urging demand for efficient technologies aiming at fossi! fuel replacement dlives the development of innovative materials and motivates abundant research work. ln particular, advanced nanostructured materials, because of their peculiar propelties due to size effects, appear as smalt and efficient solutions to meet this challenge. In this context, novel processes able to synthesize advanced nanopalticJes play a key role in the achievement of innovative devices for alternative energy production and storage. ln this lecture the development of laser pyrolysis process is reported in the fields of photovoltaics and e1ectrochemical storage. Laser pyrolysis is a gas phase flow process enabling the synthesis of various nanopalticJes using a laser beam for precursors thennal decomposition. Because of flow operation and small dimension offocused laser spot, the residence time and growth duration after nucleation is very ShOlt, leading to the collection of very small nanoparticJes. ln the case of silicon quantum dots, palticles as small as 3 mn can be obtained which exhibit quantum confinement with broadened bandgap. Such materials can be doped and deposited in situ, together with the co-deposition of

Domaines: Matériaux

Yann Leconte. Advanced nanoparticles synthesis by laser pyrolysis for energy production and storage. Nano S&T, Oct 2017, Fukuoka, Japan. ⟨cea-02341033⟩