Phthalocyanato Tin(IV) Dichloride: An Air‐Stable, High‐Performance, n‐Type Organic Semiconductor with a High Field‐Effect Electron Mobility

Abstract

Organic thin-film transistors (OTFTs) have attracted much attention because of their potential application in low-cost, flexible, and large-area electronics. [1,2] High-performance n-type semiconductors are an essential component in OTFT applications, such as ambipolar transistors and complementary metal-oxide-semiconductor (CMOS) circuits. [3][4][5] However, although various high-performance n-type organic semiconducting materials have been reported, [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] most of them can only deliver OTFT devices that have to operate in vacuum or under an inert atmosphere, and only a few of them, that is, hexadecahalogenated metal phthalocyanine [21,22] and perylene and naphthalene diimides with electron-withdrawing groups, [9,13,14] have been claimed to allow fabrication of devices that are relatively stable in air.Owing to their high mobility, great stability, and ease of preparation metal phthalocyanine (MPc) derivatives have become one of the most important classes of organic semiconductors for OTFTs since the first demonstration of high-performance OTFTs with electron or hole mobilities over 0.01 cm 2 V À1 s À1

Air‐Operable, High‐Mobility Organic Transistors with Semifluorinated Side Chains and Unsubstituted Naphthalenetetracarboxylic Diimide Cores: High Mobility and Environmental and Bias Stress Stability from the Perfluorooctylpropyl Side Chain

“…Therefore, we synthesized this 4-(perfl uorooctyl)butylamine through four steps from C 8 F 17 I as shown in Scheme 1 via the (perfl oroalkyl)alkan-1-ol [ 32 , 33 ] and the primary amine. [ 34 ] Furthermore, N , N ′ -didecyl-1,4,5,8-naphthalene tetracarboxylic Until now, many groups have been interested in the high mobility [22][23][24][25] and air-stability [26][27][28][29] of n-channel OTFTs. As a result, the mobility of n-channel OTFTs also exceeds that of a-Si TFTs.…”

Advances in organic field-effect transistors and integrated circuits

“…Recently, the mobility of F 16 CuPc single crystal has reached 0.35 cm 2 ·V −1 ·s −1 [25] . Song et al [26] reported phthalocyanato tin (IV) dichloride (SnCl 2 Pc) is a high performance n-type organic semiconductor for OFETs applications. An electron mobility of 0.3 cm 2 ·V −1 ·s −1 has been realized in air.…”

Enhancement of short current density in polymer solar cells with phthalocyanine tin (IV) dichloride as interfacial layer

“…Here, we report $15% improvement of power conversion efficiency using phthalocyanine tin (IV) dichloride (SnCl 2 Pc), a stable n-type material with high carrier mobility and low band gap [35], as an acceptor-like cathode interfacial layer in …”