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
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
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
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
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
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
Sandeep B. Wategaonkar, Vinayak G. Parale, Sawanta S. Mali, Chang-Kook Hong, Rani P. Pawar, Parvejha S. Maldar, Annasaheb V. Moholkar, Hyung-Ho Park, Balasaheb M. Sargar, Raghunath K. Mane
Summary: This study utilized the one-step hydrothermal method to synthesize Sn-doped TiO2 thin films, investigating the influence of different Sn content on the performance of dye-sensitized solar cells. The 3% Sn-TiO2 thin film showed the highest efficiency in DSSCs, outperforming other samples.
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)
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
Li Zhang, Junjie Zhang, Xu Tang, Yong Chen, Xinting Wang, Zijian Deng, Changchun Wang, Xichuan Yang, Bin Sun
Summary: In this study, the design of coplanar organic dyes ZL002, ZL004, and ZL006 with rigid structures led to densely packed arrangements on the surface of TiO2, resulting in improved photoelectric properties, electron injection efficiency, and longer charge-recombination lifetime.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Sanjay Kumar Swami, Neetesh Kumar, Daniela R. Radu, Sung Woon Cho, Jongsu Lee
Summary: In this study, a post-lithium (Li) treatment on TiO2 films was performed to enhance the optoelectronic features and power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). The Li treatment reduced defects and improved the crystallinity of the TiO2 films. DSSCs fabricated using Li-treated TiO2 films as photoanodes showed a performance improvement of approximately 20% and a PCE of 10.5%, compared to the control DSSC with a PCE of 8.7%. The enhanced performance was attributed to improved structural properties, efficient charge transport, and suppression of recombination due to the passivation of trap states.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Muhammad Yasin, Muhammad Khan, Norah Alwadai, Munawar Iqbal
Summary: Nanorods of TiO2, Sn-doped TiO2, TiO2@Sn-TiO2 and Sn-TiO2@TiO2 were prepared and characterized using SEM, XRD and UV-Vis spectroscopy. The results showed that the heterostructure film of Sn-TiO2@TiO2 had the smallest band gap and highest efficiency in DSSC among the four films.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
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)
Review
Chemistry, Inorganic & Nuclear
Cristina Decavoli, Chiara Liliana Boldrini, Norberto Manfredi, Alessandro Abbotto
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2020)
Article
Electrochemistry
Chiara Liliana Boldrini, Norberto Manfredi, Filippo Maria Perna, Vito Capriati, Alessandro Abbotto
Article
Energy & Fuels
Norberto Manfredi, Cristina Decavoli, Chiara L. Boldrini, Carmine Coluccini, Alessandro Abbotto
Article
Chemistry, Organic
Norberto Manfredi, Cristina Decavoli, Chiara Liliana Boldrini, Tarekegn Heliso Dolla, Federica Faroldi, Francesco Sansone, Tiziano Montini, Laura Baldini, Paolo Fornasiero, Alessandro Abbotto
Summary: A new class of calix[4]arene-based molecular photosensitizers has been developed for photocatalytic production of hydrogen, offering twice larger performances compared to corresponding linear systems. This molecular design paves the way for a new strategy in photocatalytic hydrogen production, with the potential for more efficient systems and host-guest supramolecular effects afforded by the calix[4]arene scaffold.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Maurizia Palummo, Luisa Raimondo, Conor Hogan, Claudio Goletti, Silvia Trabattoni, Adele Sassella
Summary: The study focuses on the excitonic properties of mesotetraphenyl porphyrin-Zn(II) crystals, revealing multiple bands contributing to optical absorption spectra and explaining the large optical anisotropy as a result of long-range and short-range intermolecular interactions. Both localized and delocalized excitons in the pi-stacking direction are shown to determine the optical response, in line with recent experimental observations on organic crystals with similar molecular packing.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Physics, Multidisciplinary
Dario Barni, Luisa Raimondo, Anna Galli, Rossella Yivlialin, Simone Caglio, Marco Martini, Adele Sassella
Summary: The study presents a method to chemically separate and identify the different components of acrylic colors, allowing for separate spectroscopic analysis. The results demonstrate the reliability of the developed chemical and analytical method in separating the responses of different components.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Review
Biochemistry & Molecular Biology
Chiara Liliana Boldrini, Andrea Francesca Quivelli, Norberto Manfredi, Vito Capriati, Alessandro Abbotto
Summary: This article reviews the recent progress in the use of DESs in solar technologies, highlighting their important role in performance enhancement, particularly in terms of long-term temporal stability.
Article
Physics, Multidisciplinary
D. Barni, L. Raimondo, A. Galli, S. Caglio, S. Mostoni, M. D'Arienzo, M. Martini, A. Sassella
Summary: This study presents a method to separate the different components of acrylic colors using a controlled combustion strategy, which was successfully applied to acrylic colors used by Italian artist Domenico Ico Parisi.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Chemistry, Multidisciplinary
Sara Fernanda Orsini, Laura Cipolla, Simona Petroni, Sandra Dire, Riccardo Ceccato, Emanuela Callone, Roberta Bongiovanni, Sara Dalle Vacche, Barbara Di Credico, Silvia Mostoni, Roberto Nistico, Luisa Raimondo, Roberto Scotti, Massimiliano D'Arienzo
Summary: The study successfully synthesized a new alkoxysilane-bearing light-responsive cinnamyl group and applied it for surface functionalization of SiO2 nanoparticles, demonstrating high efficiency and versatility in functionalization. The results indicate that the method is promising for designing materials with photoresponsive properties.
Article
Chemistry, Organic
Cristina Decavoli, Chiara Liliana Boldrini, Alessandro Abbotto, Norberto Manfredi
Summary: A series of organic electron-rich pi-bridged symmetric hydrazones were synthesized as potential alternatives to Spiro-OMeTAD, the benchmark hole transporting material (HTM) in perovskite solar cells (PSCs). The compounds showed good energy level alignments with perovskite and similar levels to Spiro-OMeTAD. The cheap synthesis and low environmental impact make these compounds a greener and easy-to-synthesize alternative for industrial development of PSCs.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Alice Pancaldi, Luisa Raimondo, Alessandro Minotto, Adele Sassella
Summary: The ability to control organic thin film properties is crucial for high-performance thin film devices. Post-growth processes can modify the film structure and morphology, affecting device performance. Understanding and addressing these processes is essential for controlling film properties.
Article
Polymer Science
Antonio Sansonetti, Moira Bertasa, Cristina Corti, Laura Rampazzi, Damiano Monticelli, Dominique Scalarone, Adele Sassella, Carmen Canevali
Summary: Copper complexes with different ligands were studied in aqueous solutions and hydrogels to determine the optimal conditions for copper stain removal from marble, with ALA identified as the most effective and safe cleaning material.
Article
Chemistry, Multidisciplinary
Cristina Decavoli, Chiara L. Boldrini, Vanira Trifiletti, Sally Luong, Oliver Fenwick, Norberto Manfredi, Alessandro Abbotto
Summary: This study presents the first example of dyad-sensitized photoanodes in DS-PEC water splitting based on metal-free organic dyes and a Ru catalyst, demonstrating excellent electrochemical properties in experiments.