Browsing Center for Organic Photonics and Electronics (COPE) by Type "Moving Image"
Now showing items 1-20 of 21
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2014 COPE Fellowship Award Winners
(2014-09-25)Thomas Bougher, a graduate student in Mechanical Engineering presents "Thermal Transport in Chain-oriented Amorphous Polymers". -
Bio-inspired Materials: New Approaches to Molecular Building Blocks
(2018-01-09)Marine organisms use organic building blocks in unique ways to achieve materials with exceptional properties. With inspiration from these natural systems, the design of synthetic building blocks to mimic these capabilities ... -
Complex Morphologies and Molecular Ordering in OPVs: Critical Parameters Determined by Soft X-Ray Scattering
(Georgia Institute of Technology, 2013-09-26)Interface structure and the quantitative composition of morphology are known to be critical for fullerene based bulk heterojunction solar cells, yet have been very difficult to study previously due to a paucity of ... -
Disorder effects in the electronic properties of organic solar cells
(Georgia Institute of Technology, 2012-11-02)Bulk heterojunction organic solar cells have a complex physical structure made up of nanoscale domains of donors and acceptors, each of which is a disordered material. Understanding the electronic properties has proved ... -
Dynamic, Reversible and Hybrid Materials: Properties and Applications
(Georgia Institute of Technology, 2014-03-13)Dynamic systems that can undergo reversible processes are of great interest for the development of new materials, sensors, and biolabels. The talk will illustrate some of the recent results on soft structures based on metal ... -
Efficient Polymer Solar Cells
(Georgia Institute of Technology, 2013-01-25)The power conversion efficiency of organic solar cells depends on the quantum and energy efficiency by which photons from the sun are converted into electrical power. Absorption of light, charge generation, transport and ... -
Electronic Processes and Phenomena in Organic Materials: A Materials Scientist’s Point of View
(Georgia Institute of Technology, 2013-07-12)In the past decade, significant progress has been made in the fabrication of organic semiconductor thin-film devices predominantly due to important improvements of existing materials and the creation of a wealth of novel ... -
Energetic Disorder and Carrier Transport in Photovoltaic Polymers
(2013-04-12)Solution processable polymeric solar cells have drawn a lot of attention due to their potential for low cost roll-to-roll manufacturing. Compared with inorganic semiconductors, polymer semiconductors have relatively low ... -
Exploring the Synthesis and Applications of Graphene
(2015-05-04)Graphene is the ultimate two-dimensional material consisting of a single layer of sp hybridized carbon. Here we explore different approaches to synthesize this carbon allotrope, ranging from chemical conversion to vapor ... -
Materials Design for Highly Efficient Delayed Fluorescence
(Georgia Institute of Technology, 2013-08-23)Although typical organic molecules are simply composed of carbon (C), hydrogen (H), nitrogen (N) and oxygen (O) atoms, carbon’s unique bonding manners based on sp3, sp2 and sp hybrid orbitals enable very complicated molecular ... -
New Materials for High-Efficiency Organic Light-Emitting Devices (OLEDs) and Solid-State Lighting (SSL)
(Georgia Institute of Technology, 2013-03-12)Fluorescent and phosphorescent organic/organometallic materials are receiving intense interest as emitters in electroluminescent organic light-emitting diodes (OLEDs) for displays and solid-state lighting (SSL). The ... -
New Polymerization Methods for Plastic Electronics
(2015-03-13)Conjugated polymers have received a lot of attention since they combine the best features of metals or semiconductors with those of synthetic polymers. For instance, solar cells based on poly(2,7-carbazole) and ... -
Organic Memories Featuring Multi-Bit Storage
(2018-03-09)Photochromic molecules provide an intriguing and relatively untapped alternative to traditional materials utilized in organic memory devices. We have recently reported on a new prototype of a nonvolatile light-emitting ... -
Perovskite Solar Cells; Outshining Silicon
(2015-11-10)The cost of generating electricity from sun light using photovoltaic devices has continued to drop extensively over the last decade. Now in some locations in the world, PV generated electricity is cheaper than that from ... -
Probing the Relationship Between Molecular Packing and Optoelectronic Properties in Molecular Electronic Materials
(2015-04-03)The properties (electronic, optical, mechanical and thermal) of organic semiconductors are strongly dependent on the chemical structure, configuration, conformation and relative position of the component molecules or ... -
Recent Progress in Organic Solar Cells: From a Lab Curiosity to a Serious Photovoltaic Technology
(Georgia Institute of Technology, 2014-02-07)Carbon-based organic semiconductors have many potential advantages like easy large-area preparation on flexible substrates, large variety of materials, and low cost. Although known for a century, organics have achieved ... -
Relation of Structure and Charge Transport in 'Single-Stack' Organic Nanowires
(Georgia Institute of Technology, 2013-08-28)Organic nanowires may provide insights into the fundamental processes of charge generation and transport in organic semiconductors under nanoscopic confinement. Here, we demonstrate how a simple molecular design results ... -
The Role of Non-covalent Interactions in Band-gap Tuning, Conformation and Self-assembly
(Georgia Institute of Technology, 2013-08-06)The extent to which the optoelectronic properties of molecules are controlled by their conformation and packing is now well appreciated. In particular, the planarity (or nonplanarity) of a molecule has a dramatic influence ... -
Serendipity in the Quest for New Organic Materials
(2016-09-14)On the way to the design of a new molecule for possible ambipolar organic field effect transistors, we discovered a crystal-to-crystal, essentially quantitative, monomer to polymer transformation. The crystalline polymer ... -
Thin Film Solar Cells. New Organic Materials, Large-scale Printing and Nanoparticles
(Georgia Institute of Technology, 2013-08-21)In this seminar I will present three main areas of our work on solution processed solar cells. In part one I will describe the development of new donor and acceptor materials for solution processed organic photovoltaics ...