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Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex

As one of the most promising semiconductor oxide materials, titanium dioxide (TiO(2)) absorbs UV light but not visible light. To address this limitation, the introduction of Ti(3+) defects represents a common strategy to render TiO(2) visible-light responsive. Unfortunately, current hurdles in Ti(3+...

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Autores principales: Cao, Yang, Zhou, Peng, Tu, Yongguang, Liu, Zheng, Dong, Bo-Wei, Azad, Aryan, Ma, Dongge, Wang, Dong, Zhang, Xu, Yang, Yang, Jiang, Shang-Da, Zhu, Rui, Guo, Shaojun, Mo, Fanyang, Ma, Wanhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6833477/
https://www.ncbi.nlm.nih.gov/pubmed/31581068
http://dx.doi.org/10.1016/j.isci.2019.09.024
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author Cao, Yang
Zhou, Peng
Tu, Yongguang
Liu, Zheng
Dong, Bo-Wei
Azad, Aryan
Ma, Dongge
Wang, Dong
Zhang, Xu
Yang, Yang
Jiang, Shang-Da
Zhu, Rui
Guo, Shaojun
Mo, Fanyang
Ma, Wanhong
author_facet Cao, Yang
Zhou, Peng
Tu, Yongguang
Liu, Zheng
Dong, Bo-Wei
Azad, Aryan
Ma, Dongge
Wang, Dong
Zhang, Xu
Yang, Yang
Jiang, Shang-Da
Zhu, Rui
Guo, Shaojun
Mo, Fanyang
Ma, Wanhong
author_sort Cao, Yang
collection PubMed
description As one of the most promising semiconductor oxide materials, titanium dioxide (TiO(2)) absorbs UV light but not visible light. To address this limitation, the introduction of Ti(3+) defects represents a common strategy to render TiO(2) visible-light responsive. Unfortunately, current hurdles in Ti(3+) generation technologies impeded the widespread application of Ti(3+) modified materials. Herein, we demonstrate a simple and mechanistically distinct approach to generating abundant surface-Ti(3+) sites without leaving behind oxygen vacancy and sacrificing one-off electron donors. In particular, upon adsorption of organodiboron reagents onto TiO(2) nanoparticles, spontaneous electron injection from the diboron-bound O(2−) site to adjacent Ti(4+) site leads to an extremely stable blue surface Ti(3+)‒O(−·) complex. Notably, this defect generation protocol is also applicable to other semiconductor oxides including ZnO, SnO(2), Nb(2)O(5), and In(2)O(3). Furthermore, the as-prepared photoelectronic device using this strategy affords 10(3)-fold higher visible light response and the fabricated perovskite solar cell shows an enhanced performance.
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spelling pubmed-68334772019-11-08 Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex Cao, Yang Zhou, Peng Tu, Yongguang Liu, Zheng Dong, Bo-Wei Azad, Aryan Ma, Dongge Wang, Dong Zhang, Xu Yang, Yang Jiang, Shang-Da Zhu, Rui Guo, Shaojun Mo, Fanyang Ma, Wanhong iScience Article As one of the most promising semiconductor oxide materials, titanium dioxide (TiO(2)) absorbs UV light but not visible light. To address this limitation, the introduction of Ti(3+) defects represents a common strategy to render TiO(2) visible-light responsive. Unfortunately, current hurdles in Ti(3+) generation technologies impeded the widespread application of Ti(3+) modified materials. Herein, we demonstrate a simple and mechanistically distinct approach to generating abundant surface-Ti(3+) sites without leaving behind oxygen vacancy and sacrificing one-off electron donors. In particular, upon adsorption of organodiboron reagents onto TiO(2) nanoparticles, spontaneous electron injection from the diboron-bound O(2−) site to adjacent Ti(4+) site leads to an extremely stable blue surface Ti(3+)‒O(−·) complex. Notably, this defect generation protocol is also applicable to other semiconductor oxides including ZnO, SnO(2), Nb(2)O(5), and In(2)O(3). Furthermore, the as-prepared photoelectronic device using this strategy affords 10(3)-fold higher visible light response and the fabricated perovskite solar cell shows an enhanced performance. Elsevier 2019-09-18 /pmc/articles/PMC6833477/ /pubmed/31581068 http://dx.doi.org/10.1016/j.isci.2019.09.024 Text en © 2019 The Author(s) http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Cao, Yang
Zhou, Peng
Tu, Yongguang
Liu, Zheng
Dong, Bo-Wei
Azad, Aryan
Ma, Dongge
Wang, Dong
Zhang, Xu
Yang, Yang
Jiang, Shang-Da
Zhu, Rui
Guo, Shaojun
Mo, Fanyang
Ma, Wanhong
Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex
title Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex
title_full Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex
title_fullStr Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex
title_full_unstemmed Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex
title_short Modification of TiO(2) Nanoparticles with Organodiboron Molecules Inducing Stable Surface Ti(3+) Complex
title_sort modification of tio(2) nanoparticles with organodiboron molecules inducing stable surface ti(3+) complex
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6833477/
https://www.ncbi.nlm.nih.gov/pubmed/31581068
http://dx.doi.org/10.1016/j.isci.2019.09.024
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