دورية أكاديمية
Capsulate structure effect on SWNTs doping in RbxAg1-xI@SWNT composites
| العنوان: | Capsulate structure effect on SWNTs doping in RbxAg1-xI@SWNT composites |
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| المؤلفون: | Falaleev, N. S., Kumskov, A. S., Zhigalina, V. G., Verbitskiy, I. I., Vasiliev, A. L., Makarova, Anna A., Vyalikh, Denis V., Kiselev, N. A., Eliseev, A. A. |
| المساهمون: | Ministry of Education and Science of the Russian Federation, Helmholtz-Zentrum Berlin for Materials and Energy |
| بيانات النشر: | Royal Society of Chemistry (UK) |
| سنة النشر: | 2017 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| الوصف: | The paper reports the relationship between single-walled carbon nanotube (SWNT) doping and capsulate crystal structure in RbxAg1−xI@SWNT composites. The structures of one dimensional (1D) RbI, AgI and RbAg4I5 crystals inside single-walled carbon nanotubes were established by high-resolution transmission electron microscopy (HRTEM) and high-resolution scanning transmission electron microscopy (HAADF HRSTEM), and confirmed by image simulation. Opposite to one-dimensional RbI and AgI, inheriting the structure of bulk analogues, 1D RbAg4I5 forms a new phase within a confined space of the SWNT channel, which differs from the bulk RbAg4I5 structure and can be described by a deformed cubic 1D lattice. X-ray absorption, XPS, optical absorption and Raman spectroscopies were used for comprehensive study of the composites' electronic structures. The study reveals the donor behavior of RbI capsulate and the acceptor behavior of RbAg4I5 and AgI. Quantification of doping levels indicated the prevalence of the effect of the chemical composition of the capsulate on the overall doping efficiency, while a structural effect is mostly prominent in potential distribution on nanotube walls and partial charges on SWNT atoms. ; This work was supported by the Helmholtz Zentrum Berlin für Materialien und Energie within a bilateral Russian-German Laboratory program. The authors express gratitude to Orekhov A. S. for help with the STEM image simulation. This work was performed using the equipment of the Shared Research Centre FSRC “Crystallography and Photonics” RAS and was supported by the Russian Ministry of Education and Science. ; Peer Reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | Publisher's version; https://doi.org/10.1039/c7ce00155jTest; Sí; e-issn: 1466-8033; CrystEngComm 19(22): 3063-3070 (2017); http://hdl.handle.net/10261/176399Test; http://dx.doi.org/10.13039/501100003443Test; http://dx.doi.org/10.13039/100013110Test |
| DOI: | 10.1039/c7ce00155j |
| DOI: | 10.13039/501100003443 |
| DOI: | 10.13039/100013110 |
| الإتاحة: | https://doi.org/10.1039/c7ce00155jTest https://doi.org/10.13039/501100003443Test https://doi.org/10.13039/100013110Test http://hdl.handle.net/10261/176399Test |
| حقوق: | open |
| رقم الانضمام: | edsbas.25375103 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1039/c7ce00155j |
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