Characteristically shaped ZnO particles produced by periodic precipitation in organic gel media

Structural and optical properties of undoped and aluminium doped zinc oxide nanoparticles via precipitation method at low temperature

“…ZnO normally forms hexagonal wurtzite structure. The lack of center of symmetry of wurtzite, combining with large electromechanical coupling, results in strong piezoelectric and pyroelectric properties and the consequent use of ZnO in mechanical actuators, piezoelectric sensors and surface wave acoustic devices [1][2][3][4]. Moreover, ZnO that has a wide band gap of about 3.3 eV and large exciton binding energy of 60 meV at room temperature, is an important candidate for room temperature UV lasers and short-wavelength optoelectronic device [5,6].…”

Nanoscale morphological design of ZnO crystals grown in aqueous solutions

“…SEM images of (a)(c) ZnO branched structures obtained through precipitation in an agar gel, as described in Ref. 39). These three shapes were observed in the upper layer of the agar gel.…”

Multitasking: Micro‐ and Nanofabrication with Periodic Precipitation

“…Consider a long column (Figure 7.1) of wet hydrogel (e.g., agar, gelatin) loaded uniformly with one of the inorganic chemicals listed in Table 7.1 [14][15][16][17][18][19][20][21][22][23][24][25][26][27] as an 'inner electrolyte', B. When a concentrated solution of the corresponding 'outer electrolyte', A, is placed onto the gel, A starts diffusing into the substrate where it precipitates B.…”