É. Pihan
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View article: Thermal Pretreatment of as Cut Wafers for High Efficiency Silicon Heterojunction Solar Cells
Thermal Pretreatment of as Cut Wafers for High Efficiency Silicon Heterojunction Solar Cells Open
Silicon (Si) heterojunction (SHJ) solar cells are today a mature industrial technology allowing the highest efficiency of Si single junction cells. Nevertheless, SHJ efficiency dispersion related to the wafer quality (Si minority carrier l…
View article: Closing the gap between n‐ and p‐type silicon heterojunction solar cells: 24.47% efficiency on lightly doped Ga wafers
Closing the gap between n‐ and p‐type silicon heterojunction solar cells: 24.47% efficiency on lightly doped Ga wafers Open
Silicon heterojunction (SHJ) solar cells can be formed using n‐type or p‐type silicon wafers. To foster the increasing industrial interest of SHJ, cheaper p‐type wafers with a good availability might be preferred, but until today, they yie…
View article: Ultra-thin poly-Si/SiOx passivating contacts integration for high efficiency solar cells on n-type cast mono silicon wafers
Ultra-thin poly-Si/SiOx passivating contacts integration for high efficiency solar cells on n-type cast mono silicon wafers Open
In this work, ultra-thin (15nm) poly-crystalline Silicon (poly-Si) on silicon oxide (SiOx) stacks are elaborated on n-type cast-mono crystalline silicon (c-Si) wafers. Such advanced passivating contacts are integrated, in combination with …
View article: Investigation of subgrains in directionally solidified cast mono-seeded silicon and their interactions with twin boundaries
Investigation of subgrains in directionally solidified cast mono-seeded silicon and their interactions with twin boundaries Open
Directional solidification of a cast mono silicon seed and of a float-zone (FZ) silicon seed was performed and the grain and defect structures of the seeds as well as of the regrown parts are analyzed. In situ X-ray diffraction imaging ena…
View article: Subgrains, micro-twins and dislocations characterization in monolike Si using TEM and in-situ TEM
Subgrains, micro-twins and dislocations characterization in monolike Si using TEM and in-situ TEM Open
A critical aspect in the development of mono-like Silicon for photovoltaic (PV) application lies in the control of its defect microstructure. While micro-twins do not seem to represent a major concern regarding electrical activity, some di…
View article: Impact of the Seed Layer Morphology on the Initial Growth of HPMC-Si Ingot
Impact of the Seed Layer Morphology on the Initial Growth of HPMC-Si Ingot Open
International audience
View article: CRYSTALMAX Silicon for High Efficiency / Low-Cost Solar Cells
CRYSTALMAX Silicon for High Efficiency / Low-Cost Solar Cells Open
This paper aims at presenting the CRYSTALMAX technology developed from the collaboration of ECM Green Tech crystallization furnace manufacturer with CEA-INES research institute. CRYSTALMAX technology provides fully oriented 650 kg silicon…