News
Paper-Based Mechanical Sensing
Folding and stacking are used to enhance the mechanical sensing response of a paper composite and enable multistate switching, pressure distribution mapping, and the detection of conformation in a three-dimensional origami system (link to article).
May 2019: Jeremy Mehta successfully defends his PhD thesis "Nanoscale Charge Transport in Organic Solar Cells".
Apr. 2019: Fourth grade students from Tioga Hills Elementary School visit the lab to learn about organic solar cells.
Apr. 2019: Tong Yang successfully defends her PhD thesis "Towards Three-Dimensional Organic Electronic Architectures: Assessing Processing-Structure-Function Relationships". She's moving on to work at Rudolph Technologies.
Apr. 2019: This optical microscope image of organic semiconducting crystallites received the top prize for the Visualizing the Unseen category at Binghamton's annual Art of Science competition.
A Promising 2D Material for Temperature-stable Electronics and Sensors
A low-defect form of graphene oxide was chemically modified by voltage reduction to produce a highly conductive material with an electrical response that is insensitive to changes over a broad temperature range (link to article).
Two ACS Applied Energy Materials Articles Highlight Nanoscale Electrical Mapping of Solar Cells
1) Nanoscale photovoltaic maps were used to elucidate performance bottlenecks in hybrid organic-inorganic nanorod solar cells (link to article).
2) Lateral charge transport pathways were shown to assist vertical charge transport in organic solar cells by enabling charge to access preferred transport channels (link to article).
Apr. 2018: Jeremy Mehta received a best poster award at the New York State Section of the American Physical Society Spring Meeting and was nominated for a best poster award at the Materials Research Society Spring Meeting. His poster provided insight into how charge percolates through organic photovoltaic materials. Congratulations Jeremy!
Building Towards Electronics on 3D Substrates
Solution deposition of high-performance organic semiconductor crystallites onto folded and curved surfaces creates new opportunities for low-cost integration of (opto)electronics on large-area and three-dimensional substrates (link to article).
Jan. 2018: Prof. Mativetsky presents a plenary talk covering the latest on nanoscale electrical mapping of solar cell active layers at the International Conference on Nanomaterials for Energy Conversion and Storage Applications.
Press coverage: Times of India
Article Listed as One of the Most Cited in FlatChem
Voltage-induced reduction is a simple and green process for converting insulating graphene oxide to a conductive form. In this work, we detail the mechanisms, structure, and electrical properties associated with this approach, which is found to be competitive with more cumbersome methods (link to article, link to most cited articles list).
Mapping Structure-Function Links in Organic Semiconductors
Nanoscale maps of local charge carrier mobility are generated from thousands of current-voltage measurements, quantifying the sensitivity of mobility to local organic semiconductor crystal structure and chemical composition (link to article).
How Reliable are Raman Spectroscopy Measurements of Graphene Oxide?
Raman spectroscopy is a ubiquitous tool for investigating the structure of 2D materials. Our latest study shows that significant damage can be incurred in graphene oxide during Raman characterization; nevertheless, reliable data can be obtained if unusually low laser intensities are employed to prioritize sample integrity over measurement signal (link to article).
Binghamton Freshmen Introduced to Organic Electronics Research
April 2017: As part of Binghamton University's Research Days, Freshman Research Immersion students were invited to learn about our lab's research and equipment.
Mativetsky Lab at CHESS
Nov 2016: Group members run X-ray diffraction measurements at the Cornell High Energy Synchrotron Source.
Sept. 2016: Austin Faucett successfully defends his PhD thesis "Voltage-induced reduction of graphene oxide" and begins his new job at Lam Research.
Paper on Nanoscale Patterning of Graphene Oxide Published in Carbon
The best-performing organic solar cells rely on a nanostructured active layer. This review outlines supramolecular strategies for achieving highly-stable nanostructured active layers by design (available open access 
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C-AFM Review Article Selected for J. Mater. Chem. C Emerging Investigators Issue
Conductive atomic force microscopy (C-AFM) is unparalleled in its ability to map electrical properties with nanometer scale resolution. This review article highlights recent insight stemming from C-AFM studies of organic electronic systems (link to article).