Fabrication of Ag/ZnO nanowire thin films and their photocatalytic reactivities

Solution-Processable Ag-Mediated ZnO Nanowires for Scalable Low-Temperature Fabrication of Flexible Devices

“…The (100) peak that emerges from the hexagonal side facets , is vivid, especially in the 80 °C-grown SPAZN, as confirmed in the SEM image (Figure a). It is noteworthy that the ratio of the (002) peak intensity to the (100) peak intensity ( I (002) / I (100) ) can be an indicator of the aspect ratio of the ZNWs; the higher the ratio, the higher the ZNW aspect ratio. The corresponding I (002) / I (100) values of the three cases calculated and marked in Figure d indicate that the aspect ratios of the ZNWs can be controlled to be highest and lowest at 100 and 80 °C, respectively, during our SPAZN growth process.…”

“…Sharp and narrow (002) peaks are dominant, indicating that highly crystalline ZNWs grow along the c -axis of the wurtzite ZnO crystal . The (100) peak that emerges from the hexagonal side facets , is vivid, especially in the 80 °C-grown SPAZN, as confirmed in the SEM image (Figure a). It is noteworthy that the ratio of the (002) peak intensity to the (100) peak intensity ( I (002) / I (100) ) can be an indicator of the aspect ratio of the ZNWs; the higher the ratio, the higher the ZNW aspect ratio.…”

“…The CO gas sensing systems employing metal oxide materials such as ZnO, CuO, SnO 2 , and MoS 2 as well as their various nanostructures − may inspire the future improvement of SPAZN-based gas sensor devices. Moving forward, the SPAZN architecturing strategy may also be adopted to more practical device systems of broader functionalities including other pollutant detection, − catalytic reaction, and electromechanical transduction, among others. This will be realized by regulating additional process parameters, such as the precursor composition and growth time, by diversifying the framework architectures (e.g., ZNW-connected interdigitated electrodes) and/or by incorporating complementary materials.…”

Synergistic effect of noble metal Pt and Zn0.25Cd0.75S QDs on ZnO: Broad spectral response and its outstanding photocatalytic performance

“…ZnO has been extensively studied among numerous semiconductor materials for photocatalysis due to its advantages of high activity, chemical stability, non-toxic, wide availability, and low cost [5,6] . However, since ZnO has a wide band gap (3.2 eV) [7] , it can only be excited at wavelengths below 385 nm [8] , which severely limits the large-scale application of ZnO. Therefore, a variety of methods have been used to design new ZnO-based photocatalytic composite materials, such as the use of noble metal loading (like Au, Ag, Pt, etc.)…”