Table 1. Results of WPPM Modeling and Refinement from the X-ray Powder Diffraction Data, Including Unit Cell Parameters, Tetragonality (c/a), Crystalline Domain Diameters (Average, Mode, and Skewness of the log-Normal Size Distribution), and Dislocation Densities (Edge and Screw, ρe and ρs, Respectively) of Synthesized SnO2 NPs.
| agreement factors |
unit cell parameters (nm) |
crystalline domain diameter (nm) |
dislocation density (×1015 m–2) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| synthesis temperature (°C) | Rwp (%) | Rexp (%) | χ2 | a = b (nm) | c (nm) | volume (nm3) | c/a | average | mode | skewness | ρe | ρs |
| 160 | 2.25 | 1.38 | 1.64 | 0.4751(1) | 0.3185(1) | 0.072(1) | 0.6703 | 3.4(1) | 2.3(1) | 1.7(1) | 1.0(7) | 1.3(1) |
| 180 | 1.85 | 1.34 | 1.38 | 0.4749(1) | 0.3186(1) | 0.072(1) | 0.6709 | 5.3(2) | 3.1(1) | 2.2(1) | 1.0(5) | 1.2(8) |
| 200 | 2.20 | 1.68 | 1.31 | 0.4750(1) | 0.3189(1) | 0.072(1) | 0.6713 | 6.2(4) | 4.9(3) | 1.3(1) | 1.0(7) | 1.4(1) |
| 220 | 1.94 | 1.33 | 1.46 | 0.4748(1) | 0.3190(1) | 0.072(1) | 0.6719 | 6.9(2) | 5.7(2) | 1.1(1) | 1.0(1) | 1.7(2) |
| 240 | 2.03 | 1.34 | 1.51 | 0.4748(1) | 0.3188(1) | 0.072(1) | 0.6714 | 7.2(3) | 5.0(2) | 1.7(1) | 1.0(3) | 1.9(5) |
| 260 | 2.04 | 1.31 | 1.56 | 0.4749(1) | 0.3189(1) | 0.072(2) | 0.6714 | 7.7(1) | 6.7(1) | 0.9(1) | 1.0(5) | 1.9(2) |