Search results

For physical structure of TiO2 films is the core of photoelectric conversion on the photovoltaic performance of DSSC, the method by parameter estimate to determine the optimal thickness of DSSC working electrode is deduced, which is consistent with the analysis of real physical meaning about the TiO2 layer thickness and the photocurrent, while gives the specific optimal value as an addition.
Many researchers scrutinize the effect of physical structure of TiO2 films on the photovoltaic performance of DSSC, which is the core of photoelectric conversion, such as thickness, by large numbered of repeated experiments[3, 4].Graztzel et al found that, at TiO2 film thickness of 10 ~ 20μm, DSSC has the largest photoelectric conversion efficiency.
The Journal of Physical Chemistry C, 2011

When the temperature was increased to 1000ºC the structure become very ranom.
The rod like structure is very uniform.
The structure of the rods started to agglomerate and it was not uniform and the structure also changes comparing with other reaction.
And the structure changes from rod to some random structure.
European Journal of Inorganic Chemistry, 2017

They are classified by structure as hydroxamate, catecholate, carboxylate or mixed type siderophores.
Materials and Methods Structure prediction and bioinformatics.
Results and Discussion Structure prediction and bioinformatics.
Structure prediction indicates for a hydroxamate-type siderophore.
Kong, Chemistry and biology of siderophores, Nat.

These structures have its own advantages and disadvantages.
The system using in this work is structure (d).
The structure schematic is shown in figure 5.
Figure 5 The structure schematic of the moderator The simulation results are listed in table 2.
Journal of radioanalytical and nuclear chemistry, 1998, 234(1-2): 107-112

A novel and environmental-friendly route combining the conventional freeze casting and gel casting was proposed for the fabrication of aligned pore structures.
Both microstructures exhibited lamellar structures.
The architecture perpendicular to the freezing direction in Fig. 2(A) was similar to the porous structures with perpendicular orientation in Fig. 2(B).
Fig. 2 SEM micrographs of 1HA/0.29BT structures prepared by freeze gelcasting: (A) perpendicular to the freezing direction; (B) parallel to the freezing direction.
Materials Chemistry and Physics 109 (2008) 488-491

The formation of wurtzite structure of ZnO was confirmed by X-ray diffraction.
PEG acted as a structure-directing agent or chelating agent resulting in the formation of rod-like and plate-like crystals.
Phase and crystal structure analysis in Fig.1 showed that all the synthesized powders in this study gave only single phase ZnO with wurtzite structure.
Fig.1 XRD patterns of ZnO synthesized at 480 W, 10 min (a) without PEG addition, (b) with 25 wt% PEG1500 and (c) with 25 wt% PEG4000 ZnO crystals with PEG1500 addition (Fig.2) developed a rod-like structure at 480W with asymmetry along the c-axis or [0001] direction of hexagonal structure and this structure tend to be smaller when then amount of PEG1500 was increased.
Razak Daud, Effect of microwave power on the morphology and optical property of zinc oxide nano-structures prepared via a microwave-assisted aqueous solution method, Materials Chemistry and Physics, 125 (2011), 846-852 [5] T.

The chemical state of nitrogen which was induced into crystal structure of hydroxyapatite by nitrogen-doping method (N-doping method) was examined.
Thus, it has lots of strains and defects with nano-scale sizes in the crystal structure.
N-doping method is a technique to modify the chemical structure at the surface of substance by heating in NH3 atmosphere [6].
When the substitution of OH- ions into HAp structure occurred, the lattice constant of a-axis increase or decrease.
Therefore, enhanced bioactivity of the N-doped HAp ceramics may be due to the N2O incorporated into HAp crystal structure.

Bhanthumnavin2 1 Department of Physics, 2 Department of Chemistry, Chulalongkorn University, Bangkok, Thailand a email: paosawat@sc.chula.ac.th Keywords: DLC, CVD, Schottkey barrier diode, Electrical Characteristics Abstract.
Here, SBD is fabricated in a sandwich structure with the DLC film between a back ohmic contact and a top rectifying contact.
Typical I-V characteristics of the Au/Ti-DLC-Si-Al and Al-DLC-Si-Al structures at room temperature are shown in Fig. 4 and 5 respectively.
The I-V characteristics of the Au/TiDLC-Si-Al structure shows ohmic behavior.
The I-V characteristics of the Al-DLCSi-Al structure shows rectifying behavior.

Microfluidic chips were well designed to have a multi-layer, hybrid structure.
Second, the layers were assembled into the hybrid structure shown as in Fig.1 and bound together with screw fasteners.
Here, the thin film of PDMS plays an important role in adhesive bonding for both structure-assembling and leakage-preventing.
The optimization effects could be evaluated by controlling the structures of microfluidic chips and flow methods.
Lin: Trends in Analytical Chemistry Vol. 35 (2012), p.150

Effect of 100 MeV Ag+7 ion irradiation on electrical properties of Ag/La0.7Sr0.3MnO3/Ag planar structures K.H.
Presences of clear and intense peaks of LSMO confirm orthorhombic perovskite structure.
More results are required to confirm the issue of symmetrical RS of Ag/La0.7Sr0.3MnO3/Ag planar structures Fig. 3 Four terminal I-V characteristics of (a) pristine and (b) 100 MeV Ag+14 ion irradiated Ag/LSMO/Ag planar structures.
Summary and Conclusions SHI induced memrestive switching properties of Ag/LSMO/Ag planar structures have been investigated.
Journal of Solid State Chemistry 182,(2009) 187 [15] D.