Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping
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2019
Authors
Vujančević, Jelena
Andričević, Pavao

Bjelajac, Anđelika

Đokić, Veljko

Popović, Maja

Rakočević, Zlatko Lj.

Horvath, Endre
Kollar, Marton

Nafradi, Balint
Schiller, Andreas

Domanski, Konrad
Forro, Laszlo
Pavlović, Vera P.

Janaćković, Đorđe

Article (Published version)

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Highly ordered, anodically grown TiO2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping ( lt = 2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 +/- 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO2/CH3NH3PbI3 single crystals. The N-TiO2/perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive le...vels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures.
Keywords:
Annealing in NH3 / Titanium dioxide nanotubes / Methylammonium lead triiodide photodetectors / Optical properties / PhotocurrentSource:
Ceramics International, 2019, 45, 8, 10013-10020Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
- Swiss National Science FoundationSwiss National Science Foundation (SNSF) [160169]
- ERC advanced grant "PICOPROP" [670918]
- Directed synthesis, structure and properties of multifunctional materials (RS-172057)
- Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
DOI: 10.1016/j.ceramint.2019.02.045
ISSN: 0272-8842
WoS: 000465058500040
Scopus: 2-s2.0-85061828876
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Tehnološko-metalurški fakultetTY - JOUR AU - Vujančević, Jelena AU - Andričević, Pavao AU - Bjelajac, Anđelika AU - Đokić, Veljko AU - Popović, Maja AU - Rakočević, Zlatko Lj. AU - Horvath, Endre AU - Kollar, Marton AU - Nafradi, Balint AU - Schiller, Andreas AU - Domanski, Konrad AU - Forro, Laszlo AU - Pavlović, Vera P. AU - Janaćković, Đorđe PY - 2019 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4251 AB - Highly ordered, anodically grown TiO2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping ( lt = 2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 +/- 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO2/CH3NH3PbI3 single crystals. The N-TiO2/perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping EP - 10020 IS - 8 SP - 10013 VL - 45 DO - 10.1016/j.ceramint.2019.02.045 ER -
@article{ author = "Vujančević, Jelena and Andričević, Pavao and Bjelajac, Anđelika and Đokić, Veljko and Popović, Maja and Rakočević, Zlatko Lj. and Horvath, Endre and Kollar, Marton and Nafradi, Balint and Schiller, Andreas and Domanski, Konrad and Forro, Laszlo and Pavlović, Vera P. and Janaćković, Đorđe", year = "2019", abstract = "Highly ordered, anodically grown TiO2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping ( lt = 2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 +/- 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO2/CH3NH3PbI3 single crystals. The N-TiO2/perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping", pages = "10020-10013", number = "8", volume = "45", doi = "10.1016/j.ceramint.2019.02.045" }
Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z. Lj., Horvath, E., Kollar, M., Nafradi, B., Schiller, A., Domanski, K., Forro, L., Pavlović, V. P.,& Janaćković, Đ.. (2019). Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International Elsevier Sci Ltd, Oxford., 45(8), 10013-10020. https://doi.org/10.1016/j.ceramint.2019.02.045
Vujančević J, Andričević P, Bjelajac A, Đokić V, Popović M, Rakočević ZL, Horvath E, Kollar M, Nafradi B, Schiller A, Domanski K, Forro L, Pavlović VP, Janaćković Đ. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International. 2019;45(8):10013-10020. doi:10.1016/j.ceramint.2019.02.045 .
Vujančević, Jelena, Andričević, Pavao, Bjelajac, Anđelika, Đokić, Veljko, Popović, Maja, Rakočević, Zlatko Lj., Horvath, Endre, Kollar, Marton, Nafradi, Balint, Schiller, Andreas, Domanski, Konrad, Forro, Laszlo, Pavlović, Vera P., Janaćković, Đorđe, "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping" in Ceramics International, 45, no. 8 (2019):10013-10020, https://doi.org/10.1016/j.ceramint.2019.02.045 . .