نتایج جستجو برای: trap state
تعداد نتایج: 881693 فیلتر نتایج به سال:
Defect depth profiles of Cu (In1-x,Gax)(Se1-ySy)2 (CIGSS) were measured as functions of pulse width and voltage via deep-level transient spectroscopy (DLTS). Four defects were observed, i.e., electron traps of ~0.2 eV at 140 K (E1 trap) and 0.47 eV at 300 K (E2 trap) and hole traps of ~0.1 eV at 100 K (H1 trap) and ~0.4 eV at 250 K (H2 trap). The open circuit voltage (VOC) deteriorated when the...
The concept of a folding funnel with kinetic traps describes folding of individual proteins. Using in situ Atomic Force Microscopy to investigate S-layer assembly on mica, we show this concept is equally valid during self-assembly of proteins into extended matrices. We find the S-layer-on-mica system possesses a kinetic trap associated with conformational differences between a long-lived transi...
An electroformed, three-dimensional stylus Paul trap was designed to confine a single atomic ion for use as a sensor to probe the electric-field noise of proximate surfaces. The trap was microfabricated with the UV-LIGA technique to reduce the distance of the ion from the surface of interest. We detail the fabrication process used to produce a 150 μm tall stylus trap with feature sizes of 40 μm...
This paper employs a historical approach to address whether a country can avoid the middle-income trap. The development of the manufacturing sector and technological capacities are important for a country to avoid the middle-income trap. South Korea avoided the middleincome trap through developing the manufacturing sector. Argentina became a middle-income country by exporting agricultural goods...
We present lifetime measurements of the 5D3/2 and 5D5/2 states of rubidium using the time-correlated single-photon-counting method. We perform the experiment in a magneto-optical trap of Rb atoms using a two-step excitation with the trap laser at 780 nm as the first step. We record the 761.9 nm fluorescence from the decay of the 5D3/2 state to the 5P1/2 state, and measure the lifetime of the 5D...
Abstract Photodiodes are ubiquitous in industry and consumer electronics. Constantly emerging new applications for photodiodes demand different mechanical optoelectronic properties from those provided by conventional inorganic-based semiconductor devices. This has stimulated considerable interest the use of organic semiconductors, which provide a vast palette available properties, can be incorp...
Different types of sediment trap have been introduced so far to be used in erosion measuring stations, each with its own advantages and disadvantages in trapping aeolian particles. These traps have different collection and retention efficiency due to aerodynamic conditions. Some characteristics such as isokinetic feature of the trap, collection efficiency, time needed to download sediment, capa...
We investigate collisional properties of lithium and cesium which are simultaneously confined in a combined magneto-optical trap. Trap-loss collisions between the two species are comprehensively studied. Different inelastic collision channels are identified, and inter-species rate coefficients as well as cross sections are determined. It is found that loss rates are independent of the optical e...
Ag(I) doped ZnSe nanoparticles were synthesized using molecular cluster precursors. In the emission spectrum at 390 excitation, three emission bands, centered at 432 nm, 517 nm, and 484 nm, respectively were observed. The 432 nm and 517 nm bands can be assigned to ZnSe band-edge emission and donoraccepter emission from the vacancies and trap states in the ZnSe lattice to the Ag(I) dopant, respe...
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