Recent Progress of Solution Processed Organic and Perovskite Solar Cell Research at UCLA

Wei-Hsuan Chang^a

^aMSE, UCLA, 410 Westwood Plaza 90095 LA, CA

Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe September Meeting 2015 (NFM15)

Santiago de Compostela, Spain, 2015 September 6th - 15th

Oral, Wei-Hsuan Chang, presentation 203
Publication date: 8th June 2015

Solution processed solar cells have been recognized as potential candidates for future generation renewable energy. This presentation provides an overview of the latest progress in organic photovoltaics (OPV) and metal halide perovskite based solar cell at UCLA. OPVs have been improved significantly in the last decades, with power conversion efficiency now reaching 12%. This is achieved through fundamental understanding of the material and morphology, design and synthesis of novel materials as well as optimizing the organic/electrode interfaces. In this talk, strategies to the development of low bandgap polymeric materials will be discussed; these include applying different chemistry modification techniques in order to find the greatest balance between the solar spectrum matching, formed thin film morphology and charge transport properties. Furthermore, this presentation will also cover our recent progress in both tandem solar cell and transparent solar cells using the as-‐developed organic semiconductors. The emerging of metal halide perovskite based solar cell seen in the past few years has attracted tremendous attentions in the scientific field and it has been highlighted as one of the most competitive next generation PV technologies. In our group, we have focused on refining the process of perovskite film formation, understanding/passivating the possibly defects, as well as engineering different interfaces within the device; all these steps lead us to delivering a respectful solar cell efficiency around 19%. In addition to performance improvement, efforts have also been put to the exploration of other potential applications (such as flexible solar cells, photodectectors and OPV technology integrations) using this unique material, which will also be included in this presentation.

nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.

MATSUS

Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.

International Conference on Hybrid and Organic Photovoltaics

International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.

Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics

The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.

International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics

The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.