Self-organization of layered perovskites on TiO2 nanotubes surface by atomic layer deposition

被引：11

作者：

Orudzhev, F. F. ^{[1
]}

Ramazanov, Sh M. ^{[2
]}

Isaev, A. B. ^{[1
]}

Alikhanov, N. M-R ^{[2
]}

Sobola, D. ^{[3
]}

Presniakov, M. Yu ^{[4
]}

Kaviyarasu, K. ^{[5
,6
]}

机构：

[1] Dagestan State Univ, Dept Environm Chem & Technol, M Gadjieva 43a, Makhachkala 367001, Russia

[2] Dagestan State Univ, Dept Phys, M Gadjieva 43a, Makhachkala 367001, Russia

[3] Brno Univ Technol, Dept Phys, FEEC, Tech 8, Brno, Czech Republic

[4] Natl Res Ctr, Kurchatov Inst, 1 Kurchatov Sq, Moscow 123182, Russia

[5] Univ South Africa UNISA, Coll Grad Studies, UNESCO UNISA Africa Chair Nanosci Nanotechnol Lab, POB 392, Pretoria, South Africa

[6] Natl Res Fdn NRF, Mat Res Grp MRG, Nanosci African Network NANOAFNET, iThemba LABS, 1 Old Faure Rd,7129,POB 722, Somerset West, Western Cape Pr, South Africa

来源：

MATERIALS TODAY-PROCEEDINGS | 2021年 / 36卷

关键词：

Atomic layer deposition; Perovskite; TiO2; nanotubes; Band gap; Urbach energy; PHOTOCATALYTIC DEGRADATION; TITANIUM-DIOXIDE; DOPED TIO2; ARRAYS; RAMAN;

D O I：

10.1016/j.matpr.2020.04.153

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By atomic layer deposition synthesis route has been performed to obtain perovskite/TiO2 nanotubes heterostructure. Perovskite nanolayer were grown on the surface of TiO2 nanotubes. UV-visible (UV-vis) diffuse reflectance spectroscopy indicated that the absorption spectrum of the perovskite/TiO2 composite extended into the visible-light region. The optical energy band gap for direct E-g1(opt) and indirect E-g2(opt) transition was determined for the perovskite/TiO2 composite which is 2,67 and 2,31 eV, respectively. (C) 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the NANOSMATAFRICA-2018.

引用

页码：364 / 367

页数：4

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