... magnification TEM image of CdS nanotube arrays of sample A. TEM images of b, c, and d are high magnification TEMimages of A, B, and C, respectively. The inset images are SAED patterns of corresponding ... current of 10 lA/cm2 and 1 mA/cm2, respectively. Etofor sample A is 11.33V/lm. With decreasing the wall thicknesses of CdSnanotubes, the Eto of samples B and C decrease to 9.99 and 7.99 ... typicalTEM image of CdS nanotube arrays (sample A). Thenanotubes are uniform with an external diameter of about166 nm and length of about 1.5 lm. Figure 4b shows aTEM image of typical individual...