ct.14N-doped ZnO ZnO:N films have been fabricated byvarious deposition methods such as molecular-beamepitaxy,5 chemical vapor deposition,4,7 sputtering,15,16 pulselaser deposition,3 and thermal oxidation of Zn3N2.17,18 Unfortunately, the reliability in obtaining p-type ZnO:N is stillunder debate. Because the chemical activity of O is higherthan that of N, Zn preferentially combines with O rather thanwith N. As a result, it is difficult for N to be incorporated intoZnO films. Among these fabrication methods, thermal oxidation of Zn3N2 can overcome the crucial problem concerningthe low solubility of the N acceptors in ZnO. In the thermaloxidation process, N atoms in Zn3N2 are replaced by externalO atoms, and then the residual N atoms in the transformedZnO:N films will act as acceptors. The main advantage ofthis oxidation method is to raise the solubility of the N acceptors in ZnO, in addition to its simple and easy way. However, in-depth data on the electrical properties of the thermally oxidized ZnO:N films have not yet been reported.Therefore, in this study, we have synthesized ZnO:N films byoxidative annealing of sputtered Zn3N2 films and have systematically investigated the electrical properties from theviewpoint of annealing temperature.
ct.14<br>N-doped ZnO ZnO:N films have been fabricated by<br>various deposition methods such as molecular-beam<br>epitaxy,5 chemical vapor deposition,4,7 sputtering,15,16 pulse<br>laser deposition,3 and thermal oxidation of Zn3N2.<br>17,18 Unfortunately, the reliability in obtaining p-type ZnO:N is still<br>under debate. Because the chemical activity of O is higher<br>than that of N, Zn preferentially combines with O rather than<br>with N. As a result, it is difficult for N to be incorporated into<br>ZnO films. Among these fabrication methods, thermal oxidation of Zn3N2 can overcome the crucial problem concerning<br>the low solubility of the N acceptors in ZnO. In the thermal<br>oxidation process, N atoms in Zn3N2 are replaced by external<br>O原子,並且在轉化然後將殘餘的N原子<br>的ZnO:N膜將作為受體。的主要優點<br>這種氧化方法是提高ZnO中的N個受體的溶解度,除了其簡單和容易的方法。然而,深入的熱氧化ZnO的電性能數據:尚未報導N薄膜。<br>因此,在本研究中,我們已經合成了氧化鋅:由N薄膜<br>濺射Zn3N2膜的氧化退火和有系統地從所研究的電性能<br>退火溫度的觀點出發。
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