UV-vis reflection spectroscopy has been used for proving in situ the organization of pure viologen and hybrid viologen tetracyanoquinodimethanide monolayers at the air-water interface. Other more classical measurements concerning Langmuir monolayers, including surface pressure-area and surface potential-area isotherms, are also provided. The organization of the viologen in the Langmuir monolaye...

Epitaxial graphene on SiC 0001 suffers from strong intrinsic n-type doping. We demonstrate that the excess negative charge can be fully compensated by noncovalently functionalizing graphene with the strong electronacceptor tetrafluorotetracyanoquinodimethane F4-TCNQ . Charge neutrality can be reached in monolayer graphene as shown in electron-dispersion spectra from angular-resolved photoemissi...

Highly ordered epitaxial interfaces between organic semiconductors are considered as a promising avenue for enhancing the performance of electronic devices including solar cells and transistors, thanks to their well-controlled, uniform properties high carrier mobilities. The structure functionality in inextricably linked structure. We present method prediction based on lattice matching followed...

We report an atypical charge distribution in a highly ordered monolayer of sodium (Na) and tetracyanoquinodimethane (TCNQ) on a Au(111) surface. Na atoms incorporated in the charge-transfer layer donate their 3s electron to the lowest unoccupied orbital of the TCNQ acceptor. A fingerprint of such a TCNQ anion is observed in scanning tunneling spectroscopy as a zero-bias peak characteristic of t...

A sensitive, simple, and accurate spectrophotometric method was developed for the quantitative determination of some primary aliphatic and aromatic amines, that is, ethylamine, 1,2-diaminopropane, aniline, p-aminophenol, and benzidine. The method is based on the interaction of these amines in aqueous medium with 7,7',8,8'-tetracyanoquinodimethane (TCNQ) reagent in the presence of a buffer solut...

P-doping of zinc phthalocyanine ~ZnPc! with tetrafluorotetracyanoquinodimethane (F4-TCNQ) is investigated with ultraviolet and x-ray photoemission spectroscopy, inverse photoemission spectroscopy, and in situ current–voltage (I – V) measurements. The electron affinity of F4-TCNQ ~5.24 eV! is found to be equal, within experimental error, to the ionization energy of ZnPc ~5.28 eV!, consistent wit...

Tetrathiafulvalene (TTF), pentacene, and quarterthiophene with tert-butyl substituents are synthesized, and the crystal structures and the transistor properties are investigated. The tetracyanoquinodimethane (TCNQ) complex of tert-butyl TTF constructs highly one-dimensional segregated columns with tetragonal crystal symmetry.

Just as the boundary between land and water produces some of the most striking landscapes on earth, the boundary between two materials can give rise to outstanding phenomena in electronics. The pn-junction in semiconductors and two dimensional electron gases (2-DEG) causing the Quantum Hall Effects are but just two examples. On page xxx of this issue, Alves et al. show [1] that single interface...