Cd(2+) causes deep traps on the surface of CdTe quantum dots (QDs) often leading to a long response time for a photodetector. Poly(3-hexylthiophene) (P3HT) can be used to selectively passivate the Cd(2+) -related deep traps by forming a Cd-S bond, while maintaining the shallow traps. By tailoring the trap depth of the CdTe QDs, a high gain, fast response, and low noise P3HT:CdTe nanocomposite p...

Myocardial thallium-201 (20TI) kinetics have not been precisely defined because reliable techniques to determine continuous activity in vivo have not been available. In this study, an implantable miniature cadmium telluride radiation detection device was inserted through the left ventricular apex, positioned against the endocardium, and used for continuous on-line monitoring of myocardial 201TI...

The title compound, K(+)·C(8)H(13)BF(3)O(2) (-)·H(2)O, which was obtained from the reaction of a modified form of Z-vinylic telluride via a transmetalation reaction with n-BuLi, crystallizes as K(+) and C(8)H(13)BF(3)O(2) (-) ions along with a water mol-ecule. The K(+) cation is surrounded by four anions, making close contacts with six F atoms at 2.659 (3)-2.906 (3) Å and with two O atoms at 2....

Half-Heusler alloys ~MgAgAs type! with the general formula MNiSn where M is a group IV transition metal ~Hf, Zr, or Ti! are currently under investigation for potential thermoelectric materials. These materials exhibit a high negative thermopower (240 to 2250 mV/K) and low electrical resistivity values ~0.1–8 mV cm! both of which are necessary for a potential thermoelectric material. Results are...

The quantum yield (QY) and lifetime are the important parameters for the photoluminescent materials. The data here report the changes of the QY and lifetime for the quantum dot (QD) nanocomposite after the UV curing of the urethane acrylate prepolymer. The data were collected based on the water soluble CdTe QDs and urethane acrylate prepolymer. Colloidal QDs were in various concentration from 0...

We present and discuss the fabrication process and the performance of a flexible micro thermoelectric generator with electroplated Bi2+xTe3-x thermocouples in a SU-8 mold. Demonstrator devices generate 278μWcm at ∆Tmeas=40K across the experimental set up. Based on model calculations, a temperature difference of ∆TG=21.4K across the generator is assumed. Due to the flexible design and the chosen...

Molecular Dynamics (MD) is employed to investigate nonthermal melting triggered by coherent phonon excitation in bismuth telluride, which has Peierls distortion in the lattice structure. Results showed that the structural distortion caused by coherent phonons appears as early as 80 fs, while it takes several picoseconds for the whole phononexcited area to evolve into a liquid state. It was also...

AIMS Tellurium-based devices, such as photovoltaic (PV) modules and thermoelectric generators, are expected to play an increasing role in renewable energy technologies. Tellurium, however, is one of the scarcest elements in the earth's crust, and current production and recycling methods are inefficient and use toxic chemicals. This study demonstrates an alternative, bacterially mediated telluri...