Publications de Yun Luo | EPFL Graph Search

Effects of X-rays on Perovskite Solar Cells

Christophe Ballif, Yun Luo, Michael Elias Stückelberger, Jérémie Werner, Björn Niesen, Xueying Li

Synchrotron micro- and nanoprobe beamlines have demonstrated great potential to advance photovoltaic devices. Most importantly, their small X-ray spot size has enabled the direct correlation of electrical performance with elemental composition at subgrain ...

AMER CHEMICAL SOC2020

The effect of cooling press on the encapsulation properties of crystalline photovoltaic modules: residual stress and adhesion

Christophe Ballif, Yun Luo, Valentin Chapuis, Hengyu Li, Laure-Emmanuelle Perret Aebi

A high-quality encapsulation process is crucial to ensuring the performance and long-term reliability of photovoltaic (PV) modules. In crystalline Si technology-based modules, poly (ethylene-co-vinyl acetate) (EVA) is the most widely used PV encapsulant. I ...

Wiley-Blackwell2015

Effect of Cooling Press on the Optical Transmission through Photovoltaic Encapsulants

Christophe Ballif, Yun Luo, Hengyu Li, Laure-Emmanuelle Perret Aebi

In certain laminators for poly (ethylene-co-vinyl acetate) (EVA) encapsulation process of photovoltaic modules, cooling press (CP) is applied to the module after encapsulation. Here, the effect of CP on the optical transmission through common PV encapsulan ...

Taylor & Francis Inc2015

Optical transmission as a fast and non-destructive tool for determination of ethylene-co-vinyl acetate curing state in photovoltaic modules

Christophe Ballif, Yun Luo, Hengyu Li, Laure-Emmanuelle Perret Aebi

Poly(ethylene-co-vinyl acetate) (EVA) is the primary polymer used for encapsulation of photovoltaic (PV) modules. Its degree of cross-linking (gel content) is taken as a major quality reference. The EVA gel content is normally measured by Soxhlet extractio ...

2013

Insights into the encapsulation process of photovoltaic modules: GC-MS analysis on the curing step of Poly (ethylene-co-vinyl acetate) (EVA) encapsulant

Christophe Ballif, Yun Luo, Hengyu Li, Laure-Emmanuelle Perret Aebi

Appropriate encapsulation schemes are essential in protecting the active components of the photovoltaic (PV) module against weathering and to ensure long term reliability. For crystalline cells, Poly (ethylene-co-vinyl acetate) (EVA) is the most commonly u ...

Ismithers2012