High performance organic field-effect transistors using ambient deposition of tetracene single crystals

Abstract

Organic molecular crystals (OMCs) are of significant interest due to their potential use in transistors, photovoltaic devices, light emitting diodes, and other applications. However, conventional vacuum-based methods of growing crystalline OMC films are costly and provide limited control over crystal growth. In this study, we present a new method for preparing high performance single-crystal tetracene field-effect transistors under near-ambient conditions using organic vapor-liquid-solid (OVLS) deposition. We find that the mobility of OVLS-grown tetracene is comparable to high quality crystalline films prepared by physical vapor deposition. These results establish OVLS deposition as a relatively low cost, low substrate temperature, and ambient pressure method for growing high quality OMC films for device applications.

Bottom-Up Growth of Shape-Engineered Molecular Single Crystals

“…Once crystals have grown to the thickness of the solvent layer, capillary forces pin them in place, fixing their positions. The thin solvent largely confines crystal growth to 2D, and VLS deposition facilitates preparation of large, high quality crystals of even sparingly soluble compounds, with crystallographic and carrier mobility properties comparable to single crystals prepared by other methods …”

“…The thin solvent largely confines crystal growth to 2D, and VLS deposition facilitates preparation of large, high quality crystals of even sparingly soluble compounds, with crystallographic and carrier mobility properties comparable to single crystals prepared by other methods. 34 Crystals grown on unpatterned substrates develop stereotypical 2D habits with crystal size and spacing distributions kinetically governed by the rates of flux and diffusion (Figure S1). 35 Using an obstructing substrate allows tailoring of these properties.…”

Cross-over from pyrene to acene optical and electronic properties: a theoretical investigation of a series of pyrene derivatives fused with N-, S, and O-containing heterocycles

“…The TC core serves as the donor building block and semiconductor. TC was utilized in field-effect transistors 17,18 and was shown to have a field-effect mobility up to 0.4 cm 2 V À1 s À1 . 19 Substitutions on TC by electron-withdrawing groups was explored theoretically.…”

Recent Advances of Flexible Data Storage Devices Based on Organic Nanoscaled Materials

“…In order to face with the strong demand of the next‐generation electronic devices which should be highly portable, wearable, transplantable, and lightweight, the electronics systems need to be fabricated on the flexible and stretchable substrate to form various functional devices such as displays, sensor arrays, and actuator . Compared with the traditional Si based electronics, organic electronics inclusive of organic field effect transistors (OFETs), organic light‐emitting diodes (OLEDs), organic solar cells (OSCs), organic sensors, and organic memories have got a lot of interest as elementary units to construct those flexible electronic devices owing to their extraordinary benefits, for instance, large scale roll‐to‐roll fabrication, low cost and light‐weight. In particular, as a forthcoming technology, the Internet of things (IoT) provides the potential connection between the objects in the real physical world and cyber space.…”