Recent advances in n-type and ambipolar organic semiconductors and their multi-functional applications

Abstract

A comprehensive summary and deep insights into the synthesis, characterization and multi-functional device applications of n-type and ambipolar organic semiconductors are provided in this study.

Synthesis, Solution, and Solid State Properties of Homological Dialkylated Naphthalene Diimides—A Systematic Review of Molecules for Next-Generation Organic Electronics

“…Interest in the synthesis and applications of NDIs is still on the rise despite decades of preceding research [ 27 , 28 , 29 , 30 , 31 ]. There are novel applications reported in the fields of organic electronics, modern power sources, or power storage units [ 29 , 30 , 32 ].…”

AnN-oxide containing conjugated semiconducting polymer with enhanced electron mobilityviadirect (hetero)arylation polymerization

“…[5][6][7][8] CSPs with high charge carrier mobility (μ) are essential for device performance, especially for application in organic field-effect transistors (OFETs). 1,[8][9][10][11][12] To date, great achievements have been made in p-type (hole-transporting) CSPs. Several p-type CSPs with a hole mobility (μ h ) beyond 10 cm 2 V −1 s −1 have been reported, 13,14 which is comparable to amorphous silicon.…”

“…Particularly, CSPs with a LUMO energy level below −4.0 eV are necessary for an air-stable n-type OFET device. 11 One promising approach is to introduce electron-withdrawing groups (EWGs) to the polymer backbone, 9,10 such as halogen (F or Cl), [20][21][22] cyano (CN), [23][24][25] trifluoromethyl (CF 3 ), 26,27 nitrogen (N), [28][29][30][31] and boron ← nitrogen (B ← N) groups. [32][33][34] Replacing C-H in an aromatic ring with sp 2 -nitrogen (such as thiazole and pyridine) can effectively lower the LUMO energy level and bring electron transport properties to CSPs.…”

Structural control of charge transport in polymer monolayer transistors by a thermodynamically assisted dip-coating strategy

“…As a result, they hold great potential for applications in biomedical, flexible wearable, and display fields. [1][2][3][4][5][6][7][8] In recent years, it has been widely reported that in organic field-effect transistors (FETs), most carrier transport occurs in the first molecular layer in contact with the gate dielectric. [9][10][11] Therefore, FETs with their active layer thickness downscaled to a single molecular layer (monolayer) have become a favourable tool to study the charge transport properties due to the two-dimensional (2D) pathway (Scheme 1).…”

“…As a result, they hold great potential for applications in biomedical, flexible wearable, and display fields. 1–8…”