N-type polymer semiconductors incorporating heteroannulated benzothiadiazole

Abstract

We report four novel n-type polymer semiconductors containing a 2,1,3-benzothiadiazole (BT) based acceptor annulated with a 2-(1,3-dithiol-2-ylidene)malonitrile (DTYM) group. Four copolymers with varying electron donor groups are investigated with regards...

Cyano-functionalized organic and polymeric semiconductors for high-performance n-type organic electronic devices

“…Heeney et al designed a new building block BT-DTYM annulated with a 2-(1,3-dithiol-2-ylidene)malonitrile (DTYM) group, and constructed a polymer P22. 85 It showed a low-lying LUMO level (À3.92 eV) and n-type semiconducting behaviour with an OTFT m e of 5.2 Â 10 À3 cm 2 V À1 s À1 when fabricated by blade coating.…”

Synthesis and charge-transport properties of novel π-conjugated polymers incorporating core-extended naphtho[2,1-b:3,4-b′]dithiophene diimides

“…7 For example, the planar and electron-poor A unit within such CPSs not only typically leads to a decrease in both band gaps and frontier orbital energy levels but also facilitates interchain interaction and charge-transport ability. 1 Modification of classic A units [8][9][10][11][12][13][14][15][16] [e.g., naphthalene diimide (NDI) and perylene diimide (PDI)] or the creation of novel A systems, [17][18][19][20][21][22][23][24][25][26] therefore, has recently become a popular subject of engineering the optoelectronic properties of CPSs.…”

Interfacial Interaction Enables Enhanced Mobility in Hybrid Perovskite‐Conjugated Polymer Transistors with High‐k Fluorinated Polymer Dielectrics

“…[7,8] In state-of-the-art OFETs, high hole and electron carrier mobilities surpassing 14 and 7 cm 2 V -1 s -1 , respectively, have been achieved using D-A type polymers synthesized by alternative copolymerization of D moieties, such as oligothiophenes, and A moieties, such as isodingo, naphthalenedicarboximide, and diketopyrrolopyrrole constitutes. [9][10][11][12][13][14][15][16][17] However, the benchmark poly(3hexylthiophene) (P3HT) polymer has been one of the most experimented conjugated polymers for organic electronic devices. [18][19][20][21] This is because of the strong self-assembling ability in both solution and solid state, which contributes to an enhanced charge carrier mobility by forming a highly ordered state of polymer chains.…”