Article
Chemistry, Inorganic & Nuclear
Herman Heffner, Jorge Mario Marchetti, Ricardo Faccio, Ignacio Lopez-Corral
Summary: This study investigates the changes in electronic properties of TiO2(B)(100) surface by introducing vacancy defects and adsorbing catechol molecules, and proposes reduced ultrathin sheets as suitable candidate for DSSC photoelectrodes.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yang-Hong Wu, Kai-Yan Yuan, Yan-E He, Heng Wu, Li-Jiao Ma, Gang Wang, Xiao-Dong Qiao, Bing-Xin Lei, Zhen-Fan Sun, Zhao-Qing Liu
Summary: Waxberry-like mixed-phase TiO2 hollow microstructures (WMTHMs) are controllably prepared and exhibit excellent light scattering capacity and high cell efficiency, attributed to the radially aligned nanorods and efficient electron transport.
CHINESE CHEMICAL LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Kasidid Yaemsunthorn, Marcin Kobielusz, Wojciech Macyk
Summary: The low-temperature synthesis of TiO2 nanocomposites allows precise tuning of the anatase/rutile ratio. Different phase compositions have varying impacts on water oxidation, hydrogen peroxide reduction, and water reduction reactions, with the A series showing higher activity in oxidation-controlled reactions and the B series facilitating reduction-controlled processes. The design of optimal photocatalysts should consider both intrinsic and extrinsic factors for improved catalytic activity.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Jianjun Yang, Xiaobao Yu, Yaxin Li, Guilin Cheng, Zichuan Yi, Zhi Zhang, Feng Chi, Liming Liu
Summary: This paper proposes a new type of flexible dye-sensitized solar cell (DSSC) structure with all-metal electrodes without the use of rare elements. The preparation techniques for the light-receiving layer and porous titanium dioxide (TiO2) film are analyzed. Experimental results show that different electrode material combinations can achieve different performance indicators.
Article
Physics, Applied
Elias Kluth, Michael Fay, Christopher Parmenter, Joseph Roberts, Emily Smith, Craig Stoppiello, Fabien Massabuau, Ruediger Goldhahn, Martin Feneberg
Summary: This study investigates the redshift of the absorption onset and amplitude increase in the ultraviolet complex dielectric function (DF) of corundum-like a-(TixGa1-x)(2)O-3 with increasing Ti content. a-Ga2O3 thin film samples alloyed with Ti up to x = 0.61 are grown using plasma enhanced atomic layer deposition, and characterized using ultraviolet spectroscopic ellipsometry, transmission electron microscopy, and x-ray photoelectron spectroscopy (XPS). The results show that the samples remain crystalline up to x = 0.053. Ellipsometry reveals a strong red shift in the absorption onset and an increase in amplitude with increasing Ti content, attributed to the successive occupation of Ti-related 3d states in the density-of-states. Valence band XPS results suggest that the red shift is mainly due to conduction band lowering rather than the valence band.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Hussein O. Badr, Francisco Lagunas, Daniel E. Autrey, Jacob Cope, Takayuki Kono, Takeshi Torita, Robert F. Klie, Yong-Jie Hu, Michel W. Barsoum
Summary: We synthesized 1D TiO2-based nanofilaments by reacting Ti-containing precursors with quaternary ammonium hydroxides at near-ambient conditions. The structure was previously believed to be anatase-based, but we now conclude that it is actually a 1D titania lepidocrocite-based structure. The NFs grow along [100] and tend to self-assemble/stack in two directions. The band gap is not affected by the nature of the cations surrounding the NFs.
Article
Physics, Condensed Matter
M. Balamurugan, M. Silambarasan, S. Saravanan, T. Soga
Summary: In this study, an eco-friendly simple solution combustion method was used to prepare anatase and rutile mixed phase TiO2 nanoparticles in a single step. The weight fractions of anatase and rutile phases were controlled by varying the amount of titanium precursor. The prepared nanoparticles were crystalline and had sizes in the range of 20-40 nm.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Multidisciplinary Sciences
Jun Peng, Felipe Kremer, Daniel Walter, Yiliang Wu, Yi Ji, Jin Xiang, Wenzhu Liu, The Duong, Heping Shen, Teng Lu, Frank Brink, Dingyong Zhong, Li Li, Olivier Lee Cheong Lem, Yun Liu, Klaus J. Weber, Thomas P. White, Kylie R. Catchpole
Summary: Perovskite solar cells are at the forefront of emerging photovoltaic technologies due to their rapid development in efficiency and stability. This study introduces a reverse-doping process to fabricate nitrogen-doped titanium oxide electron transport layers, which significantly improves the charge transport performance and fill factor of the cells.
Article
Energy & Fuels
Rajkumar Senthamarai, Venkatraman Madurai Ramakrishnan, Balraju Palanisamy, Suguna Kulandhaivel
Summary: Clean and green energy is a global priority, and in this study, TiO(2) nanostructures were prepared using fruit extracts as reducing agents. The structural and optical properties of the synthesized TiO(2) nanostructures were characterized, and their performance in dye-sensitized solar cells was studied using two different dyes.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Chemical
Jacek Fal, Jolanta Sobczak, Ryszard Stagraczynski, Patrice Estelle, Gawel Zyla
Summary: The electrical conductivity of ethylene glycol-based nanofluids containing three types of titanium dioxide nanoparticles was investigated experimentally, and a new theoretical correlation was proposed. The influence of nanoparticle content and phase on the electrical conductivity of ethylene glycol was observed.
Review
Chemistry, Multidisciplinary
Diana Rakhmawaty Eddy, Muhamad Diki Permana, Lintang Kumoro Sakti, Geometry Amal Nur Sheha, Solihudin, Sahrul Hidayat, Takahiro Takei, Nobuhiro Kumada, Iman Rahayu
Summary: This study aims to clarify the differences between titanium dioxide polymorphs and their properties in different photocatalytic applications. Homophase titanium dioxide has disadvantages such as high recombination rates and low adsorption capacity. On the other hand, heterophase titanium dioxide can effectively stimulate electron transfer and exhibit superior photocatalytic performance. Various biphase and triphase polymorphs of titanium dioxide are discussed, and the focus is on the synthesis and application of heterophase titanium dioxide as a photocatalyst.
Article
Chemistry, Multidisciplinary
Anna Yu Kurenkova, Anastasiya Yu Yakovleva, Andrey A. Saraev, Evgeny Yu Gerasimov, Ekaterina A. Kozlova, Vasily V. Kaichev
Summary: This study proposes titania-based photocatalysts modified with copper compounds for hydrogen evolution and tests their photocatalytic activity. The synthesized photocatalysts are characterized using various methods, and the results show that the heat-treated and copper oxide deposited photocatalysts exhibit high activity under both UV and visible light irradiation.
Article
Engineering, Electrical & Electronic
Yu-Hsun Nien, Yi-Ting Wu, Jung-Chuan Chou, Chih-Sung Ho, Chih-Hsien Lai, Po-Yu Kuo, Zhen-Rong Yong, Yu-Che Lin, Ruei-Hong Syu
Summary: The effects of PbTiO3 and PbTiO3/TiO2 NFs on the characteristics of the photoanode of DSSC were studied. The results showed that they can improve the photovoltaic characteristics of DSSC, with the DSSC modified by PbTiO3/TiO2 NFs exhibiting better photoelectric conversion efficiency.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Engineering, Chemical
Yang-Hong Wu, Yu-Feng Cao, Zi-Zhuo Fu, Bing-Xin Lei, Zhen-Fan Sun
Summary: The cube-like TiO2 mesocrystalline hollow boxes fabricated by a topotactic transformation method exhibit excellent light scattering performance and efficient electron transport, leading to a significant improvement in the efficiency of dye-sensitized solar cells.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Energy & Fuels
Bingyu Lei, Neil Robertson
Summary: A new method for the immobilization of TiO2 mesocrystals has been developed in this study. The immobilized TiO2 possesses high dye pickup capability and optimal electron transport ability, making it suitable for dye-sensitized solar cells.
Article
Chemistry, Inorganic & Nuclear
Ja-Min Gu, Jin-Yeon Hong, Yong Sun Won, Sung Soo Park, Seong Huh
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2015)
Article
Chemistry, Inorganic & Nuclear
In-Hwan Choi, Seung Hyun Chae, Seong Huh, Suk Joong Lee, Sung-Jin Kim, Youngmee Kim
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2015)
Article
Chemistry, Physical
Sang-Eun Bae, Ki-Jung Kim, Yong-Kyung Hwang, Seong Huh
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2015)
Article
Chemistry, Multidisciplinary
Gwangbin Lee, Sang-Eun Bae, Seong Huh, Sangwon Cha
Article
Chemistry, Multidisciplinary
Hyun-Chul Kim, Ja-Min Gu, Seong Huh, Chul-Hyun Yo, Youngmee Kim
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
(2015)
Article
Chemistry, Physical
Sang-Eun Bae, Ki-Jung Kim, In-Hwan Choi, Seong Huh
Article
Chemistry, Multidisciplinary
Youngmee Kim, Seong Huh
Article
Chemistry, Multidisciplinary
Seong Huh, Sung-Jin Kim, Youngmee Kim
Article
Chemistry, Inorganic & Nuclear
Hyun-Chul Kim, Ja-Min Gu, Youngmee Kim, Do Nam Lee, Seong Huh
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2016)
Article
Chemistry, Inorganic & Nuclear
In-Hwan Choi, Youngmee Kim, Do Nam Lee, Seong Huh
Article
Chemistry, Physical
Pil Sun Yoo, D. Amaranatha Reddy, YueFa Jia, Sang Eun Bae, Seong Huh, Chunli Liu
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2017)
Article
Chemistry, Multidisciplinary
Seung Hyun Chae, Hyun-Chul Kim, Young Sun Lee, Seong Huh, Sung-Jin Kim, Youngmee Kim, Suk Joong Lee
CRYSTAL GROWTH & DESIGN
(2015)
Article
Chemistry, Multidisciplinary
Eun-Young Cho, Ja-Min Gu, In-Hwan Choi, Wan-Seok Kim, Yong-Kyung Hwang, Seong Huh, Sung-Jin Kim, Youngmee Kim
CRYSTAL GROWTH & DESIGN
(2014)
Review
Chemistry, Physical
Seong Huh
Article
Chemistry, Multidisciplinary
Hyun-Chul Kim, Seong Huh, Jin Yeong Kim, Hoi Ri Moon, Do Nam Lee, Youngmee Kim