New type of doping effect via metallization of surface reduction in SnO2

The use of conventional doping methods requires consideration of not only the energy connection with the base material but also the limits of the type and doping range of the dopant. The scope of the physico-chemical change must be determined from the properties of the base material, and when this l...

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Bibliographic Details
Published in:Scientific reports 2019-05, Vol.9 (1), p.8129-8129, Article 8129
Main Authors: Bang, Jae Hoon, Choi, Myung Sik, Na, Han Gil, Oum, Wansik, Choi, Sun-Woo, Kim, Sang Sub, Kim, Hyoun Woo, Jin, Changhyun
Format: Article
Language:English
Subjects:
639/301
639/925/357
Efficiency
Energy
Energy transfer
Free energy
Humanities and Social Sciences
Materials science
Microscopy
multidisciplinary
Science
Science (multidisciplinary)
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Summary:The use of conventional doping methods requires consideration of not only the energy connection with the base material but also the limits of the type and doping range of the dopant. The scope of the physico-chemical change must be determined from the properties of the base material, and when this limit is exceeded, a large energy barrier must be formed between the base material and the dopant as in a heterojunction. Thus, starting from a different viewpoint, we introduce a so-called metallization of surface reduction method, which easily overcomes the disadvantages of existing methods while having the effect of doping the base material. Such new synthetic techniques enable sequential energy arrangements–gradients from the surface to the centre of the material–so that free energy transfer effects can be obtained as per the energies in the semiconducting band, eliminating the energy discontinuity of the heterojunction.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-44634-0