Article
Chemistry, Physical
Satish A. Mahadik, Hemraj M. Yadav, Sarika S. Mahadik
Summary: By tuning surface polarity and sensitizing TiO2 nanorods with chlorophyll-a dye, improvements in DSSCs have been achieved. Various surface properties such as superhydrophobicity and reduction in oxygen defects were successfully explored. The sensitized system showed a 3.69 times improvement in PEC under 1000 W light illumination.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Fuchen Chu, Bingcheng Sun, Bairui Tao, Peng Zhang, Yu Zang, Paul K. Chu
Summary: This study presents the design and fabrication of a photoanode composed of Au/SnS/TiO2 sensitized with natural dye for dye-sensitized solar cells (DSSCs). By calcination, a layer of spherical nano-TiO2 is prepared, and a layer of nano-SnS is deposited on the TiO2 photoanode using the continuous ion layer adsorption reaction (SILAR). The sensitized Au nanoparticles exhibit enhanced localized surface plasmon resonance (LSPR) effects and electron trapping ability, resulting in improved electron mobility and reduced electron recombination in the DSSC.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Dongting Wang, Yifan Hu, Yuchen Li, Xiangchen Jia, Yuzhen Fang, Zhiliang Zhang, Xianxi Zhang
Summary: The study introduces a novel and uncomplicated wet-chemical method at room temperature for the self seeding preparation of three-dimensional hierarchically branched rutile TiO2 nanostructures. The technique utilizes titanate nanotubes as the precursor and employs a dissolution/precipitation/recrystallization process to obtain spindle-like rutile TiO2 and intermediate anatase phase, which serve as the substrates and nucleation precursor to grow the branches, resulting in the formation of 3D hierarchically branched rutile TiO2. When used as the photoanode in dye-sensitized solar cells, the hierarchical TiO2 exhibits a significantly improved power conversion efficiency of 8.32%, surpassing a typical TiO2 (P25) nanoparticle-based reference cell (eta = 5.97%) with the same film thickness. The exceptional performance is attributed to the effective combination of robust light scattering, substantial dye loading, and fast electron transport in the hierarchically branched rutile TiO2 nanostructures.
Article
Engineering, Electrical & Electronic
Mehdi Ismail, Celine Olivier, Thierry Toupance
Summary: Anatase TiO2 photoanodes were modified with hydrothermally synthesized WO3 nanorods for DSSC applications. Two configurations were investigated, where the addition of WO3 nanorods in the TiO2 matrix showed better performance for front illumination, while the undercoat of WO3 nanorods on FTO substrate showed better performance for back illumination. The excellent electron mobility and specific nanorod shape of WO3 contributed to charge trapping and injection, reducing recombination and dark current, while the scattering nature of the WO3 nanorods undercoat was beneficial for light harvesting.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Wen-Feng Lai, Pei-Ling Chao, Xin-Yu Lin, Yin-Pei Chen, Jih-Hsin Liu, Tz-Feng Lin, Wei-Chou Hsu, Chia-Yi Huang
Summary: In this study, a one-dimensional protrusive TiO2 strip array was fabricated using chemical and physical methods. A porous semiconductor layer was coated on the strip array. The results showed that the DSSC with the TiO2 strip array had a higher energy conversion efficiency, which can be attributed to the large surface area of the protrusive structure and its specific electron transport paths.
Article
Chemistry, Physical
N. Sriharan, T. S. Senthil, P. Soundarrajan, Misook Kang
Summary: TiO2 nanorods were synthesized from colloidal titanate using a hydrothermal method, and Mg metallic ions were doped to study their influence on the growth of TiO2 nanorods. The introduction of Mg dopant induced constraint stress in the nanorods, resulting in a shift in preferentially oriented crystallographic plane. The crystallographic structures of TiO2 nanorods remained unchanged, but the surface to volume ratio and absorption capacity shifted due to Mg doping. This physical property change was confirmed by EDS analysis. The doped TiO2 nanorods showed improved performance as photoelectrodes in dye-sensitized solar cells, with the 2 mol.% Mg doped TiO2 nanorods achieving a high power conversion efficiency of 6.36%.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Bandana Ranamagar, Isaac Abiye, Fasil Abebe
Summary: The Rhodamine-6G derivative Rhd and its metal complexes with aluminum and chromium ions were synthesized and characterized using UV-vis and fluorescence spectroscopy. Dye-sensitized solar cells (DSSCs) were fabricated with Rhd and the metal complexes, and their solar-to-electric power efficiencies were determined through current-density measurements and Electrochemical Impedance Spectroscopy (EIS). The Rhd and Cr3+-sensitized solar cell showed the highest solar to electric power efficiency at 0.16%.
Article
Energy & Fuels
Abdullah Atilgan, Abdullah Yildiz
Summary: The development of novel bilayer photoanodes is crucial for efficient dye-sensitized solar cells. In this study, a homojunction photoanode consisting of undoped and Ni-doped TiO2 layers was prepared. By tuning the location of the doped layer, the photoconversion efficiency was greatly improved. The bilayer structure enhanced light absorption, resulting in increased short circuit current and open-circuit voltage.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Bingcheng Sun, Bairui Tao, Yanchun Wang, Paul K. Chu
Summary: This paper demonstrates the application of a novel ternary nanocomposite MoS2/Ag/TiO2 photoanode in high efficiency plasma dye sensitive solar cell. The ternary nanocomposite MoS2/Ag/TiO2 was successfully synthesized without any hazardous substances. The addition of MoS2 improves the light absorption ability and electron transfer rate of the photoanode, leading to a significant enhancement in the photoelectric conversion efficiency of the dye sensitive solar cell.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Hugo G. Lemos, Rodrigo M. Ronchi, Guilherme R. Portugal, Jessica H. H. Rossato, Gurpreet S. Selopal, David Barba, Everaldo C. Venancio, Federico Rosei, Jeverson T. Arantes, Sydney F. Santos
Summary: Dye-sensitized solar cells (DSSCs) are a promising technology for clean energy conversion. This study focuses on enhancing the efficiency of DSSCs by optimizing charge transport and non-radiative carrier recombination. The introduction of Ti3C2Tx MXene into the photoanode improves electron transport and increases the energy-to-current conversion of DSSCs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Xintong Chen, Wei Zheng
Summary: Co-sensitization of Ag2S QDs and N719 dye in liquid-junction film solar cells improves light absorption and enhances photovoltaic performance. The introduction of Ag2S QDs reduces interface impedance and increases the lifetime of photo-excited carriers.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Physics, Multidisciplinary
Yu-Chih Chiang, Chia-Rong Lee, Chia-Yi Huang
Summary: A 90-nm-thick TiO2 grid was fabricated using photolithography, sputtering, and lift-off process. A nanoporous film was deposited on the TiO2 grid, which induced a protrusive structure. Experimental results showed that introducing the TiO2 grid into a dye-sensitized solar cell increased its power conversion efficiency by 25%. This improvement can be attributed to the large surface area and directional electron transport channels of the protrusive structure.
Article
Chemistry, Physical
Shanmuganathan Venkatesan, Yun-Yu Chen, Hsisheng Teng, Yuh-Lang Lee
Summary: This study demonstrates a quick dye adsorption process using electrochemical methods, reducing the fabrication time of dye-sensitized solar cells. The electrodes prepared using constant potential methods show high performance in DSSCs with high efficiencies and low dark current densities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Pawel Gnida, Pawel Jarka, Pavel Chulkin, Aleksandra Drygala, Marcin Libera, Tomasz Tanski, Ewa Schab-Balcerzak
Summary: The impact of various TiO2 nanostructures on the properties of photoanodes and the photovoltaic parameters of dye-sensitized solar cells was investigated. It was found that the addition of nanotubes to the photoanode resulted in the highest UV-Vis absorption, indicating a higher number of sensitizer molecules anchored to the titanium dioxide. This led to the highest power conversion efficiency in the solar cells containing nanotubes and a mixture of dyes with a co-adsorbent.
Article
Chemistry, Physical
Yang Li, Junting Wang, Yi Yuan, Min Zhang, Xiandui Dong, Peng Wang
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2017)
Article
Chemistry, Analytical
Shiwei Liu, Tongshun Wu, Fenghua Li, Qixian Zhang, Xiandui Dong, Li Niu
ANALYTICAL METHODS
(2018)
Article
Chemistry, Multidisciplinary
Yanfei Mu, Guangxing Dong, Xiandui Dong, Min Zhang
Article
Materials Science, Multidisciplinary
Jiao Liu, Yong Cui, Yunfei Zu, Cunbin An, Bowei Xu, Huifeng Yao, Shaoqing Zhang, Jianhui Hou
ORGANIC ELECTRONICS
(2020)
Article
Multidisciplinary Sciences
Junzhen Ren, Pengqing Bi, Jianqi Zhang, Jiao Liu, Jingwen Wang, Ye Xu, Zhixiang Wei, Shaoqing Zhang, Jianhui Hou
Summary: In this study, a new ester substituted poly(thiophene vinylene) derivative, PTVT-T, was successfully synthesized with commercially available raw materials. PTVT-T showed excellent compatibility with fullerene- and NF-based acceptors, exhibiting high efficiency in OSCs. With a power conversion efficiency of 16.20% in a PTVT-T:BTP-eC9-based device, this work demonstrates the huge potential of PTVT-T for the future commercialization of OSCs.
NATIONAL SCIENCE REVIEW
(2021)
Article
Chemistry, Physical
Dongyang Qu, Bolin Zhao, Zhongqian Song, Dandan Wang, Huijun Kong, Shiyu Gan, Yingming Ma, Xiandui Dong, Dongxue Han, Li Niu
Summary: High-yield N/O co-doped porous turbostratic carbon nanomeshes with large interlayer spacing and abundant edge defects were synthesized using a copolymerization and carbonization strategy. The optimized nanomesh showed remarkable electrochemical performance as an anode material in potassium-ion and lithium-ion batteries, with reversible ion insertion and extraction processes. The excellent performance was attributed to the synergistic contributions of defects and reactive sites induced by N/O co-doping.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Polymer Science
Jiao Liu, Junzhen Ren, Shaoqing Zhang, Jianhui Hou
Article
Chemistry, Physical
Yang Li, Zaiwei Wang, Dan Ren, Yuhang Liu, Aibin Zheng, Shaik Mohammed Zakeeruddin, Xiandui Dong, Anders Hagfeldt, Michael Gratzel, Peng Wang
ACS APPLIED ENERGY MATERIALS
(2019)
Article
Chemistry, Analytical
Shiwei Liu, Liang Liang, Qixian Zhang, Changpeng Liu, Wei Xing, Xiandui Dong
ANALYTICAL METHODS
(2019)
Article
Chemistry, Analytical
Liu Zhen-Bang, Ma Ying-Ming, Han Dong-Xue, Dong Xian-Dui, Niu Li, Bao Yu
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2018)
Article
Energy & Fuels
Jiao Liu, Yameng Ren, Min Zhang, Xiandui Dong
Article
Chemistry, Physical
Liu Jiao, Huo Jicun, Zhang Min, Dong Xiandui
ACTA PHYSICO-CHIMICA SINICA
(2018)
