Thin Films and Nano-Objects of Molecule-Based Materials

Tuning the Electrocrystallization Parameters of Semiconducting Co[TCNQ]2-Based Materials To Yield either Single Nanowires or Crystalline Thin Films

“…For this reason, TCNQ solid-state chemistry represents an area of considerable current interest in the field of materials science . Potential applications of the fundamentally intriguing properties of these materials in optical and electrical media recording, energy and data storage, and sensors and catalysis, as well as electrochromic and magnetic devices, have been a driving force for the tremendous research activity over the past four decades. For example, the discovery of reversible bistable electrical and optical switches together with memory effects for both CuTCNQ and AgTCNQ based devices has substantially encouraged exploration of new approaches for achieving precise control of the physical (e.g., shape, size, density, orientation) and chemical (phase, structure, purity) properties of these materials .…”

Controllable Synthesis and Fabrication of Semiconducting Nanorod/Nanowire Bundles of Fe[TCNQ]2(H2O)2via Electrochemically Induced Solid−Solid Phase Transformation of TCNQ Microcrystals

“…Advances in nanotechnology and molecule-based solid-state chemistry have led to a revived interest in metal−TCNQ materials (TCNQ = 7,7,8,8-tetracyanoquinodimethane). − In particular, the electrical, optical, and switching properties of CuTCNQ and AgTCNQ have been widely studied, − owing to their potential use in erasable photochromic laser disks and memory storage, − organic field-effect transistors, − biosensors, − and electrochromic devices. − In this respect, a great deal of investigations have been undertaken to tune the intrinsic physical and chemical properties of these MTCNQ materials via controlling of their crystal sizes and morphologies, thereby enhancing their desired reactivity or stability. Thus, different synthetic strategies have been employed for the preparation and fabrication of morphology-tunable MTCNQ micro/nanostructures. − Among these methods are vapor deposition of TCNQ on metal surfaces, reaction of TCNQ - with metal salts, spontaneous electrolysis, and other electrochemical and photochemical approaches. − ,− …”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] In particular, the electrical, optical, and switching properties of CuTCNQ and AgTCNQ have been widely studied, [16][17][18][19][20][21][22] owing to their potential use in erasable photochromic laser disks and memory storage, [23][24][25] organic field-effect transistors, [26][27][28] biosensors, [29][30][31] and electrochromic devices. [32][33][34] In this respect, a great deal of investigations have been undertaken to tune the intrinsic physical and chemical properties of these MTCNQ materials via controlling of their crystal sizes and morphologies, thereby enhancing their desired reactivity or stability. Thus, different synthetic strategies have been employed for the preparation and fabrication of morphology-tunable MTCNQ micro/nanostructures.…”

Redox-Induced Solid−Solid Phase Transformation of TCNQ Microcrystals into Semiconducting Ni[TCNQ]2(H2O)2 Nanowire (Flowerlike) Architectures: A Combined Voltammetric, Spectroscopic, and Microscopic Study

“…Because of their fascinating structural, electronic, optical, and switching properties, metal−tetracyanoquinodimethane (MTCNQ) charge-transfer complexes have generated substantial interest over the past four decades. − The outcome of wide ranging research activities, particularly for CuTCNQ, AgTCNQ, and Group I cation (Na + , K + , Rb + , Cs + )−TCNQ systems, − is the widespread applications of TCNQ-based molecular materials in information storage media, − organic field-effect transistors, − sensors, − and electrochromic and magnetic devices. − In recent years, much effort has been devoted to the synthesis and fabrication of well-controlled MTCNQ micro/nanostructures, − because their sizes and morphologies are generally believed to be key elements in the tuning of their intrinsic chemical and physical properties. − Thus, various synthetic methods including direct reaction of TCNQ - with metal salts, vapor deposition of TCNQ on metal surfaces, and spontaneous electrolysis and electrospinning, along with other photochemical and electrochemical techniques, have been used to accomplish this goal. − ,− …”