Binary solvent engineering for small-molecular organic semiconductor crystallization

Abstract

This article reviews the synergistic effects of engineering binary solvents on the crystallization, morphology and charge transport of organic semiconductors.

The solvent effect on the morphology and molecular ordering of benzothiadiazole-based small molecule for inkjet-printed thin-film transistors

“…The solvent plays a critical role in controlling the arrangement of molecules in the film. 40,50 The fluidic dynamics in chloroform and toluene differ due to their influence on the ink's evaporation and convection behavior. Although the material readily dissolves in chloroform, its low boiling point of 61.15 °C, evaporation rate of 29.4 kJ mol −1 , and combustion enthalpy of −473.21 kJ mol −1 impede the proper organization of the molecules during the drying process.…”

“…The solvent plays a critical role in controlling the arrangement of molecules in the lm. 40,50 The uidic dynamics Scheme 1 Synthesis route for 3HTBTT small molecule. in chloroform and toluene differ due to their inuence on the ink's evaporation and convection behavior.…”

“…A single solvent system, such as chlorobenzene, chloroform, or toluene, has demonstrated poor lm morphologies and low crystallinity, resulting in extremely low carrier mobility in organic electronic devices. [39][40][41] However, by modulating the ratios of CHCl 3 to toluene, inkjet-printed TFT devices' electrical properties and uniformity have been substantially improved.…”

A review on 2,8-difluoro-5,11-bis(triethylsilylethynyl)anthradithiophene based organic thin film transistor

“…Over many years, OSC materials, as well as OTFT device architectures, have been investigated, and their applications have been significantly explored in several review articles [13][14][15][16][17][18][19][20][21][22]. The geometry of the four most common OTFTs are (1) bottom-gate, bottomcontact; (2) bottom-gate, top-contact (BGTC); (3) top-gate, bottom-contact; and (4) top-gate, topcontact.…”

Towards Digital Twin Implementation in Roll-To-Roll Gravure Printed Electronics: Overlay Printing Registration Error Prediction Based on Printing Process Parameters

“…Printed electronics have a monumental impact considering their suitability for several applications where conformity and cost are critical in markets [ 1 , 2 , 3 , 4 ]. Roll-to-roll gravure (R2Rg) is a promising approach for mass production of inexpensive and large-area flexible electronic devices [ 5 ] such as radio frequency identification tags [ 6 ], organic solar cells [ 7 ], thin-film transistors (TFTs) in active matrix-based sensor devices [ 8 , 9 , 10 , 11 ], and low level-integrated logic gate-based devices [ 12 ]. However, the operating frequency and level of integration still need to be improved in these devices.…”