Recent Advances in High-Mobility Polymeric Semiconductor Materials

Abstract

Significant progress has been made in polymeric semiconductors and their organic field-effect transistors (OFETs) since 1980s. To date, hundreds of polymeric semiconductors have been reported and used for OFETs. The hole mobility above 36.3 cm 2 •V -1 •s -1 has been achieved, which can be competitive with organic small semiconductors and even amorphous silicon. In this review, the recent progress in high-mobility polymeric semiconductor materials has been summarized from the perspective of design, synthesis, and OFET devices performance. Moreover, the recent developments are systematically summarized and analyzed according to different types of polymeric semiconductors, including p-type, n-type, and ambipolar polymeric semiconductors. The analysis about the relationship among the molecular structure-aggregation structure-OFET devices performance may guide the rational molecule design in the polymeric semiconductor materials with excellently comprehensive performance in the future.

Diketopyrrolopyrrole-Based Donor–Acceptor Conjugated Microporous Polymers for Visible-Light-Driven Photocatalytic Hydrogen Production from Water

“…Moreover, the abundant choice in D and A units makes it easily to modulate material bandgap as well as energy levels of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) for fitting its specific applications. To date, D–A conjugated materials have been well applied in the field of organic solar cells , and organic field-effect transistors, , and also extended into the field of photocatalysts for hydrogen production. − , For example, Yu’s group in 2016 reported a CMP constructed from electron-rich 4,8-di­(thiophene-2-yl)­benzo­[1,2 b :4,5 b ′]­dithiophene, and electron-deficient bipyridyl (bdy) units displayed better photocatalytic hydrogen production than other chromophore combinations. However, it gave the highest AQY at 350 nm and only had 0.34% in value.…”

Enhancement of thermoelectric properties of D‐A conjugated polymer through constructing random copolymers with more electronic donors

“…[26][27][28][29] Diketopyrrolopyrrole (DPP) based conjugated polymers is a representative D-A conjugated polymers which have been studied in organic field-effect transistor (OTFT), organic photovoltaic as well as organic TE application, due to their excellent carrier mobility. [30][31][32][33] As for TE application, Lei et al prepared pyrazine-flanked DPP based D-A polymer, which exhibited a PF of 57.3 μW m À1 K À2 , which is a new record in n-type conjugated polymers. 34 Di et al synthesized a selenium-substituted DPP polymer with a high PF and ZT of up to 364 μW m À1 K À2 and 0.25, which is the most state-of-the-art value for p-type D-A conjugated TE polymers.…”

Interconnecting semiconducting molecules with non-conjugated soft linkers: a way to improve film formation quality without sacrifice in charge mobility

“…Owing to the use of organic semiconductors as key components, organic optoelectronics, such as organic eld-effect transistors (OFETs), [1][2][3][4][5][6][7][8] organic solar cells (OSCs), [9][10][11][12][13][14] organic light-emitting diodes (OLEDs), [15][16][17][18][19][20] have features of light weight, exibility, solution processability, and adaptability in large area module fabrication, and thus cater to future demands in portable, wearable, large but light and exible smart devices. With decades of effort, a number of high performance organic semiconductors have been designed and studied.…”

“…Some of them have successfully surpassed amorphous silicon and realized a mobility larger than 1 cm 2 V À1 s À1 . [1][2][3][4][5][6][7][8][21][22][23][24][25][26][27][28][29][30] Such milestone achievements in material innovation greatly drive organic electronics much closer to their practical applications. However in reality, in addition to device performance, device fabrication success rate is another factor that should be seriously concerned.…”

“…Moreover, the performance of small molecular semiconductors still overbids that of conjugated polymers, either in the number of high performance materials or the record mobility values. [1][2][3][4][5][6][7][8][21][22][23][24][25][26][27][28][29][30] In an important comprehensive review article written by Hu, et al, 3 over 700 small molecular semiconductor p-conjugated systems including 438 ptype and 205 n-type have been highlighted. But only 66 conjugated polymer semiconductors have been introduced.…”