Nanoelectronics – Page 33 – TechConnect Briefs

The INGAAS/GAAS Quantum Dots Under Effective and Ab Initio Treatments: Comparison and Results

Filikhin I., Suslov V.M., Vlahovic B., North Carolina Central University, US

An effective approach for describing the electronic structure of InGaAs/GaAs quantum dots (QDs) is presented. We model QDs based on a single sub-band approach with an energy dependent electron effective mass. The model assumes that [...]

Highly selective sensing of DMMP and NH3 using CNTFET array based gas sensors obtained using Spray-gun technique and fabricated with different metal electrodes to achieve gas electronic fingerprinting

Bondavalli P., Legagneux P., Pribat D., Gorintin L., Thales Research and Technology, FR

This paper deals with the prove of concept of an highly selective gas sensor based on CNTFETs which exploits the extremely sensitive change of the Schottky barrier heights between SWCNTs and metal electrodes. Specifically, the [...]

Enhanced UV Light Emission in Silicon nanoparticles

Singh A., Grycznski K.G., Rout B., Li J., McDaniel F., Neogi A., Sahu G., Mahapatra D.P., University of North Texas, US

UV light emission comparable to GaN based semiconductor is observed from gold-implanted Si (100) semiconductors. A low energy Au implant forming the Si nanoparticles or quantum dots are been irradiated and recrystallized by a MeV [...]

The Patterning of Sub-500 nm Inorganic Structures for Hybrid Photovoltaics

Hampton M.J., Williams S.S., Retterer S.T., Templeton J.L., Samulski E.T., DeSimone J.M., The University of North Carolina at Chapel Hill, US

The Pattern Replication In Non-wetting Templates (PRINT) technique has been extended to patterning of isolated features as well as embossed films of sub-500 nm “hard” inorganic oxides and nanocrystalline semiconductors including TiO2, SnO2, ZnO, ITO, [...]

Nano Electronics and Photonics

Spark Plasma Synthesis (SPS) Device for Sintering of Nanomaterials

Jalabadze N., Nadaraia L., Mikeladze A., Chedia R., Kukava T., Khundadze L., Technical University of Georgia, GE

It is known that pieces with nanocrystalline structure condition have much higher performance than those with an ordinary structure. There are number of techniques for manufacturing nanocrystalline materials in powder condition however a question of [...]

Analysis of density variation for different temperatures in thermal nano imprinting process

Lee D.E., Lee H.J., Lee W.I., Lee D.E., Lee H.J., Lee W.I., Choi S-W, Lee D.E., Lee H.J., Lee W.I., Seoul National University, KR

Density variation of the polymer resist for different temperatures in thermal nano imprinting1 process was studied by both experiments and molecular dynamics (MD) simulations. After patterning, we estimated the local density by measuring the pull-off [...]

Single-step synthesis of visible-light TiO(2-X)N(X) photocatalyst nanopowder by thermal plasma

Tsai C-Y, Hsi H-C, National Kaohsiung First University of Science & Technology, TW

In this study, TiO(2-X)N(X) was synthesized using transferred DC plasma torch as the heating source. As a result, the nanopowders of TiO(2-X)N(X) were formed via a single-step process. The formed TiO(2-X)N(X) nanopowder was characterized with [...]

Nano-scaled water ejection using Nanopipette with QTF-AFM for Nanolithography

An S.M., Jang S.J., Noh H.E., Jhe W.H., Seoul National University, KR

We demonstrated that the apex of nanopipette with applying electric field could be used as a nano-scaled water ejection system using AFM(Atomic Force Microscopy) System based on QTF(Quartz Tunning Fork), namely nanolithography system. The tip [...]

p-Type Single-Wall Garbon Nanotube Network on n-Type Si for Heterojunction Photovoltaic Cells

Li Z., Xu Y., Saini V., Dervishi E., Mahmood M., Biris A.R., Biris A.S., Biris A.R., Biris A.S., University of Arkansas at Little Rock, US

The solar cells based on high-density p-n heterojunctions between single wall carbon nanotubes (SWNTs) and n-type crystalline silicon were produced with airbrushing technique. The SWNTs/n-Si heterojunction is rectifying. Under optical excitation the numerous heterojunctions formed [...]