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https://doi.org/10.1021/cm0482176
Title: | Dopant sources choice for formation of p-type ZnO: Phosphorus compound sources | Authors: | Yu, Z.G. Gong, H. Wu, P. |
Issue Date: | 22-Feb-2005 | Citation: | Yu, Z.G., Gong, H., Wu, P. (2005-02-22). Dopant sources choice for formation of p-type ZnO: Phosphorus compound sources. Chemistry of Materials 17 (4) : 852-855. ScholarBank@NUS Repository. https://doi.org/10.1021/cm0482176 | Abstract: | Fabrication of p-type ZnO has proven difficult and usually inconsistent despite numerous worldwide efforts. In this theoretical study we explored the problem of p-type ZnO formation using both DFT and thermochemistry calculations. Our DFT models predicted that Zn3P2 is a good dopant because it can lead to a shallow acceptor level at 0 K. Additional thermochemistry calculations demonstrated that this shallow acceptor can be further stabilized in a real fabrication process. Our models explain well the observed trends for both n- and p-type phosphorus-doped ZnO and especially the observed inconsistent behaviors of P2O5 dopant. A new strategy of fabricating p-type ZnO was proposed thereafter. This research may also help to address the problem of dopant selection in the fabrication of other wide-gap semiconductors. | Source Title: | Chemistry of Materials | URI: | http://scholarbank.nus.edu.sg/handle/10635/107005 | ISSN: | 08974756 | DOI: | 10.1021/cm0482176 |
Appears in Collections: | Staff Publications |
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