Sylvain G Cloutier
Ecole de Technologie Superieure, Canada
Title: Low-cost printable hybrid hetero structures for energy harvesting and lighting
Biography
Biography: Sylvain G Cloutier
Abstract
The urgent demand for better and cheaper optoelectronic device architectures is a crucial road block towards a better use of our energy resources. As such, we explore new additive manufacturing paradigms in printable electronics to realize ultralow-cost, light weight and fully-integrated light-harvesting and energy-efficient optoelectronic devices using commercial-grade printing capabilities. While solution-processing techniques have yielded a wide range of new hybrid nano-engineered materials for optoelectronic applications, many key parameters including compatibility, interface engineering, surface treatment and processability are essential to achieve the best device performances. More recently, new solution processed materials including organometallics, new high-mobility conductive polymers and nanoparticle inks have shown tremendous potential for low-cost optoelectronic device integration. For example, power conversion efficiencies from printable organometallic solar cells have now surpassed 20%. These advances have also transposed into new photo detector devices with high responsivities. Just in the last year, our team made tremendous ground breaking progress towards viable devices by dramatically enhancing structure and material properties, enhancing conductivities by several orders of magnitude using hybrids, significantly improving stability and lifetime and dramatically improving the performances through advanced processing. In this presentation, we will summarize our work from the last five years exploring new hybrid heterostructures for low-cost opto electronic applications, including mainly light harvesting and lighting. We will present new printable sol gel based TiO2 collector architectures, which then led to promising low-cost solar cell architectures for production using commercial grade inkjet or aerosol printing capability. We will also describe in details how methyl ammonium lead-halide perovskite deposition and chemistry was adapted to produce low-cost photodetectors and LEDs using commercial-grade inkjet printing capability.