An article includes a flexible electronic component and a flexible support coupled to the flexible electronic component. The flexible support is configured to support the flexible electronic component but also limit local bending of the flexible component. The flexible support defines a plurality of hinge points configured to facilitate movement of the article. The plurality of hinge points are positioned such that the article has a desired bending range.

Support structures for a flexible electronic component

Perylene diimides (PDIs) are versatile n-type materials showing great promise in a number of optoelectronic applications. While the singlet manifold of PDI can be readily populated, triplet excited states are only accessible through complex multistep energy cascades or bimolecular sensitization. In this work, we have synthesized a series of thionated PDIs that display rapid intersystem crossing to triplet states. Significantly, the thionated PDIs are synthesized in one step from the parent compound using commercially available Lawesson’s reagent. Electrochemical and steady state optical absorption measurements show that the electron affinity and ionization potentials can be systematically tuned through successive sulfur atom substitution. Thin-film optical absorption measurements show how the number and regiochemistry of the thiocarbonyl groups influence π–π interactions in the solid state. Ultrafast transient absorption spectroscopy reveals rapid triplet formation that is independent of the degree of thi...

Ultrafast Triplet Formation in Thionated Perylene Diimides

Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.

Conjugated polymers and their use in optoelectronic devices

An attachable article or device, such as a wristband, includes a flexible electronic display disposed thereon in a manner that is bendable or conformable to a user's wrist or other curved surface, and that enables various images to be displayed on the electronic display in a manner that is easily viewable to the user. The attachable article implements a messaging routine that enables a user or wearer to receive notifications of incoming messages and to selectively view incoming messages or indications thereof.

Attachable article with signaling, split display and messaging features

The functionality of common organic semiconductor materials is determined by their chemical structure and crystal modification. While the former can be fine-tuned via synthesis, a priori control over the crystal structure has remained elusive. We show that the surface tension is the main driver for the plate-like crystallization of a novel small organic molecule n-type semiconductor at the liquid–air interface. This interface provides an ideal environment for the growth of millimeter-sized semiconductor platelets that are only few nanometers thick and thus highly attractive for application in transistors. On the basis of the novel high-performance perylene diimide, we show in as-grown, only 3 nm thin crystals electron mobilities of above 4 cm2/(V s) and excellent bias stress stability. We suggest that the established systematics on solvent parameters can provide the basis of a general framework for a more deterministic crystallization of other small molecules.

High-Mobility, Ultrathin Organic Semiconducting Films Realized by Surface-Mediated Crystallization

The present teachings provide semiconducting compounds, materials prepared from such compounds, methods of preparing such compounds and semiconductor materials, as well as various compositions, composites, and devices that incorporate the compounds and semiconductor materials. Specifically, compounds of the present teachings can have higher electron-transport efficiency and higher solubility in common solvents compared to related representative compounds.

Perylene semiconductors and methods of preparation and use thereof

Disclosed are new semiconductor materials prepared from dimeric perylene compounds. Such compounds can exhibit high n-type carrier mobility and/or good current modulation characteristics. In addition, the compounds of the present teachings can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.

Semiconductor materials and methods of preparation and use thereof

Disclosed are thionated fused-ring (aromatic) imides and diimides that can exhibit desirable electronic properties and can possess processing advantages including solution- processability and/or good stability at ambient conditions.

Thionated aromatic bisimides as organic semiconductors and devices incorporating them

Disclosed are new semiconductor materials prepared from polycyclic compounds. Such compounds can exhibit high n-type carrier mobility and/or good current modulation characteristics. In addition, the compounds of the present teachings can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.

Rylene-based semiconductor materials and methods of preparation and use thereof

Disclosed are thionated fused-ring (aromatic) imides and diimides that can exhibit desirable electronic properties and can possess processing advantages including solution-processability and/or good stability at ambient conditions.

Yan Zheng

Papers

Perylene semiconductors and methods of preparation and use thereof

Semiconductor materials and methods of preparation and use thereof

Thionated aromatic bisimides as organic semiconductors and devices incorporating them

Rylene-based semiconductor materials and methods of preparation and use thereof

Organic Semiconductors and Devices Incorporating Same