Article
Chemistry, Multidisciplinary
Ling Hong, Huifeng Yao, Yong Cui, Pengqing Bi, Tao Zhang, Yongxin Cheng, Yunfei Zu, Jinzhao Qin, Runnan Yu, Ziyi Ge, Jianhui Hou
Summary: Establishing an ideal architecture with selective carrier transport and suppressed recombination is crucial for improving photovoltaic efficiency in organic solar cells (OSCs). By tailoring a hybrid planar/bulk structure, highly efficient OSCs with reduced energy losses were fabricated. The study highlights the potential of precisely regulating the structure of donor:acceptor heterojunction to further enhance the efficiencies of OSCs.
ADVANCED MATERIALS
(2021)
Article
Physics, Multidisciplinary
Kahtan A. Mohammed, Kareema M. Ziadan, Alaa S. Al-Kabbi, Rahman S. Zbibah, Ali J. Alrubaie
Summary: A hybrid system based on conducting polymer-semiconductor was studied, using poly(o-toluidine) doped with camphor sulfonic acid and cadmium selenide CdSe capped with trisodium citrate by physical mixing method. The electrical properties of hybrid thin films were found to be influenced by the weight percent of CdSe nanoparticles. The conductivity of the hybrid films increased with increasing CdSe content, but decreased with excess CdSe content. This work provides evidence for the optimal use of CdSe nanoparticles in conductive polymer-based optoelectronics.
ACTA PHYSICA POLONICA A
(2022)
Article
Chemistry, Physical
Jiakuan Zhang, Chuyue Li, Jiongzhao Li, Xiaogang Peng
Summary: Size- and shape-controlled CdSe/ZnSe core/shell and CdSe/ZnSe/ZnS core/shell/shell nanocrystals with zinc-blende structure are synthesized. The ligand strain between the inorganic crystal surface and organic ligands plays a key role in ZnSe epitaxy. The lattice strain between the CdSe and ZnSe affects the photoluminescence of CdSe/ZnSe/ZnS core/shell/shell QDs.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Yanjie Wu, Nan Ding, Yuhong Zhang, Bin Liu, Xinmeng Zhuang, Shuainan Liu, Zhaogang Nie, Xue Bai, Biao Dong, Lin Xu, Donglei Zhou, Hongwei Song
Summary: This study focuses on extending the near-infrared (NIR) spectral response and increasing ultraviolet (UV) utilization for perovskite solar cells (PSCs). By integrating new organic bulk-heterojunction and gold nanotriangles, the NIR spectral response of PSCs is extended to 1100 nm. The study also demonstrates the potential of CsPbCl3:Yb3+, Ce3+, Cr3+ nanophosphors for down-conversion in PSCs, resulting in a significant increase in power conversion efficiency (PCE) and short circuit current density (Jsc).
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Sikandar Aftab, Muhammad Zahir Iqbal, Sajjad Hussain, Fahmid Kabir, Abdullah A. Al-Kahtani, Hosameldin Helmy Hegazy
Summary: Nanocrystals, also known as semiconductor quantum dots (QDs), have unique electronic structures and quantum confinement effects that make them suitable for optoelectronic device applications, including solar cells. This review article outlines the synthesis of QD materials and their impact on solar cell performance. It demonstrates that QD treatment can significantly improve the long-term stability of perovskite solar cells. The conclusions from this review are important for further advancements and understanding of QD solar cells and their interaction with different materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Jiangzhi Zi, Yueqi Zhong, Zhao Li, Fan Wu, WeiWei Yang, Zichao Lian
Summary: Photoinduced carrier transfer pathways play a role in the optical and electronic properties of nanomaterials for photocatalytic H-2 evolution, while defects in semiconductor nanocrystals can enhance our understanding of photocatalytic mechanisms. CdSe/ZnS HNPLs with anomalous type-I hole transfer exhibit advantages in efficient charge separation and photocatalytic H-2 evolution, compared to type-II CdSe/ZnSe HNPLs and pristine CdSe NPLs. These results elucidate the role of defect-mediated carrier transfer in visible-light-driven photocatalytic H-2 evolution.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
A. M. Smirnov, M. O. Nestoklon, E. A. Shirshin, K. V. Ezhova, A. V. Gayer, R. B. Vasiliev, V. S. Dneprovskii, V. N. Mantsevich
Summary: The peculiarities of exciton dynamics in tetrapod-shaped CdTe/CdSe nanocrystals are revealed under different optical excitation conditions. The photoluminescence spectra show well-resolved excitonic bands from CdTe and CdSe parts of the tetrapod arms, as well as PL caused by indirect transitions of spatially separated charge carriers. The giant blue shift of the indirect transition emission band, caused by the exciton's space filling effect and modification of the energy level structure by the induced internal electric field, is demonstrated.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Gang Qiang, Aleksandr A. Golovatenko, Elena V. Shornikova, Dmitri R. Yakovlev, Anna V. Rodina, Evgeny A. Zhukov, Ina V. Kalitukha, Victor F. Sapega, Vadim Kh. Kaibyshev, Mikhail A. Prosnikov, Peter C. M. Christianen, Aleksei A. Onushchenko, Manfred Bayer
Summary: Exciton recombination dynamics and spin polarization in CdSe nanocrystals synthesized in a glass matrix were investigated using polarized photoluminescence in high magnetic fields up to 30 Tesla. The study revealed that the dynamics are accelerated by increasing temperature and magnetic field, and circularly polarized photoluminescence in magnetic fields showed several unusual appearances. The observed features were explained by a theoretical model, highlighting the competition between different recombination channels and the inhomogeneous broadening of the photoluminescence spectrum from the ensemble of nanocrystals.
Article
Chemistry, Physical
Mark W. B. Wilson, Minhal Hasham, Pournima Narayanan, Francisco Yarur Villanueva, Philippe B. Green, Christian J. Imperiale
Summary: Nanocrystal-sensitized triplet-fusion upconversion is an emerging strategy for converting long-wavelength, incoherent light to higher-energy output photons. The photophysics of tailor-functionalized CdSe nanocrystals were studied to understand energy transfer to surface anchored transmitter ligands, which can occur through correlated exciton transfer or sequential carrier hops. By reducing the barrier to hole-first sequential transfer, a significant acceleration of energy transfer was observed. This acceleration was found to be greater than the expected effect of increased carrier wave function leakage, indicating the dominance of sequential transfer under certain conditions. Transient photoluminescence measurements showed comparable quenching of NC band-edge and trap states by functionalization, suggesting a dynamic quasi-equilibrium allowing for extraction of photoexcitations even when a carrier is initially trapped.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Tom Galle, Daniel Spittel, Nelli Weiss, Volodymyr Shamraienko, Helena Decker, Maximilian Georgi, Rene Huebner, Nadia Metzkow, Christine Steinbach, Dana Schwarz, Vladimir Lesnyak, Alexander Eychmueller
Summary: The research transforms CdSe NPLs into PbSe NPLs suitable for optoelectronic applications through cation exchange, ligand exchange, and electronic coupling, successfully fabricating a photodetector with fast light response at low operational voltages on a commercial substrate.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Physics, Applied
Xi-Kai Yang, Jia-Wei Qiao, Zhi-Hao Chen, Zhen-Chuan Wen, Hang Yin, Xiao-Tao Hao
Summary: By incorporating CdSe quantum dots as a third component, this study has successfully enhanced the current density and power conversion efficiency of organic solar cells. CdSe QDs modulate charge dynamics, increase fluorescence external quantum efficiency, and enable Forster resonance energy transfer and fast charge transfer in BHJ films, resulting in improved overall device performance.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
Bin Bin Jin, Shu Ying Kong, Guo Qing Zhang, Xing Qiao Chen, Hong Shan Ni, Fan Zhang, Dan Jun Wang, Jing Hui Zeng
Summary: The study focuses on inhibiting interfacial charge recombination in CdSe QDSSCs by constructing a ZnS/QDs/ZnS double-layer barrier structure and applying an electric field in VASILAR, achieving higher efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Dallas P. Strandell, Patanjali Kambhampati
Summary: We performed time-resolved photoluminescence (t-PL) measurements on CsPbBr3 perovskite nanocrystals with a time resolution of 3 ps. Surprisingly, even though these nanocrystals are weakly confined or bulk-like, emissions from multiexcitons were observed with binding energies consistent with strongly confined quantum dots. Both biexciton and triexciton emissions were observed, and the kinetics of the multiexciton populations were analyzed in spectrally integrated form as well as decomposed into exciton, biexciton, and triexciton populations.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Timothy G. Mack, Juliana Spinelli, Mark P. Andrews, Patanjali Kambhampati
Summary: This study reports mode-specific resonance Raman enhancements of ligands bound to the surface of colloidal CdSe nanocrystals. The extent of enhancement is directly related to the molecular symmetry of the ligands, and further discussion is made regarding Franck-Condon and Herzberg-Teller contributions and associated selection rules. Resonance Raman can be used to distinguish between possible surface binding motifs of bidentate ligands under continuous wave excitation, demonstrating its usefulness as a characterization tool for adsorbed molecular species on semiconductor NC surfaces.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Ja-Jung Koo, Kwang Hwan Jung, Kyungsu Park, Won Ja Min, Kyu-Sang Yu, Zee Hwan Kim, Jin-Kyu Lee
Summary: In this study, the interfacial structures of CdSe/ZnS QDs were investigated using TOF-MEIS. The results showed the existence of an alloyed layer at the interface between CdSe and ZnS in typical CdSe/ZnS QDs. The dissolution of CdSe seeds during the synthesis steps was identified as the cause of this interfacial alloying, and the ligand environment of the solvent was found to influence the shape of the interface.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Daniel Heimfarth, Merve Balci Leinen, Patrick Klein, Sybille Allard, Ullrich Scherf, Jana Zaumseil
Summary: Organic electrochemical transistors play a crucial role in enhancing ion transport. The use of polymers with ethylene glycol side chains can increase device volumetric capacitance and transconductance. Applying this concept to polymer-wrapped single-walled carbon nanotubes results in high-mobility semiconducting material with excellent device performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Fabian Garisch, Giovanni Ligorio, Patrick Klein, Michael Forster, Ullrich Scherf, Emil J. W. List-Kratochvil
Summary: Neuromorphic devices represent the next evolution of computing, allowing for machine learning within hardware components. By integrating ion-mediated operating principles, these devices offer energy efficiency and power. The presented organic synaptic diode demonstrates reliable switching between states and state retention, showcasing potential for fabricating artificial neural networks.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jakob Schedlbauer, Sabrina Streicher, Michael Forster, Ullrich Scherf, Jan Vogelsang, John M. Lupton
Summary: The interaction between light and matter in organic semiconductors is influenced by the dimension of the domain within the material. In this study, the effect of exciton mobility on photon antibunching and bunching was examined using ladder-type poly(para-phenylene) nanoparticles. The results show that triplet diffusion is not significant in the singlet-triplet annihilation process.
ADVANCED OPTICAL MATERIALS
(2022)
Editorial Material
Polymer Science
Ullrich Scherf, Eva Harth
JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Telma Costa, Matti Knaapila, Beverly Stewart, M. Luisa Ramos, Licinia. L. G. Justino, Artur J. M. Valente, Robert Dalgliesh, Sarah E. Rogers, Mario Kraft, Sybille Allard, Ullrich Scherf, Hugh D. Burrows
Summary: This study reports the synthesis of a new conjugated polymer containing crown ether moieties and investigates the effect of surfactants on polymer-polymer aggregates. The presence of sodium dodecyl sulfate (SDS) disrupts the aggregates and enhances the photoluminescence quantum yields.
Article
Chemistry, Multidisciplinary
Robin Ammenhaeuser, Patrick Klein, Eva Schmid, Sabrina Streicher, Jan Vogelsang, Christian W. Lehmann, John M. Lupton, Stefan C. J. Meskers, Ullrich Scherf
Summary: This article reports the synthesis of helical polymers with a rigid square structure based on spiro-linked ladder-type pentaphenyl units. The variation of circular dichroism with increasing chain length provides direct evidence for delocalization of electronic excitations over at least 10 monomeric units. The change in the degree of circular polarization of the fluorescence across the vibronic side bands shows that vibrational motion can localize the excitation dynamically to almost one single unit.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Polymer Science
Klaus Muellen, Ullrich Scherf
Summary: Conjugated polymers, such as polyacetylenes and polyarylenes, have attracted the attention of synthetic chemistry, physics, and engineering. They exhibit fascinating electrical and optical properties that make them ideal for device applications. However, their performance depends on structural perfection, purity, and thin-film morphology, which are influenced by processing procedures. With the need for innovative energy technologies and sustainable materials, conjugated polymer research is gaining momentum.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
Ibeth Rendon-Enriquez, Alex Palma-Cando, Florian Koerber, Felix Niebisch, Michael Forster, Michael W. Tausch, Ullrich Scherf
Summary: Electrically conducting and semiconducting polymers are still very attractive due to their unique optical and electronic properties and their broad device application potential. Their synthesis and structure elucidation are still intensely investigated for several high future relevance applications. This article demonstrates the fruitful interplay of current electropolymerization research and its exploitation for science education, using the synthesis of conducting polymers and their assembly into functional devices as a teaching tool.
Article
Chemistry, Physical
Sven Boelke, David Batchelor, Andreas Frueh, Benedikt Lassalle-Kaiser, Tina Keller, Florian Trilling, Michael Forster, Ullrich Scherf, Thomas Chasse, Heiko Peisert
Summary: The position of side chains in the studied conjugated low band gap polymers has a significant influence on the molecular orientation and interface properties, whereas the electronic structure is less affected. Annealing further affects the preferred molecular orientation, leading to a higher degree of ordering.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Sven Boelke, Tina Keller, Florian Trilling, Michael Forster, Ullrich Scherf, Thomas Chasse, Heiko Peisert
Summary: Side chains are crucial in the photo-oxidation process of low band gap (LBG) polymers. Introducing aromatic-oxy-alkyl links has been found to increase their photostability. The photostability of prototypical LBG polymers with alkyl and oxyalkyl side chains was studied using UV/vis and IR spectroscopy during irradiation with white light. The presence or absence of oxygen in the side chains and the position of the side chain at the polymer backbone significantly affected the degradation kinetics and stability.
Article
Nanoscience & Nanotechnology
Ahmed E. Mansour, Ross Warren, Dominique Lungwitz, Michael Forster, Ullrich Scherf, Andreas Opitz, Moritz Malischewski, Norbert Koch
Summary: This study presents a simple method to enhance the oxidation strength of molecular dopants for organic semiconductors, while reducing diffusion in polymer hosts. Experimental results demonstrate higher efficiency of the new dopant complex compared to traditional molecular dopants.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Sven Boelke, Andreas Frueh, Florian Trilling, Michael Forster, Ullrich Scherf, Thomas Chasse, Heiko Peisert
Summary: Ladder polymers with poly(diketopyrrolopyrrole) (DPP) moieties have been widely studied for opto-electronic applications. In this research, the molecular orientation of DPP-based ladder polymers in thin films was investigated using PM-IRRAS, showing a preferential orientation of the polymer backbone parallel to the substrate surface.
Article
Materials Science, Multidisciplinary
Robin Ammenhaeuser, John M. Lupton, Ullrich Scherf
Summary: Helical ladder polymers are designed by connecting planar indenofluorene chromophores with chiral triptycene linkers to achieve chiral amplification. By transitioning from a model dimer to a polymeric helical ladder structure, the chiroptical anisotropy values increase by almost sevenfold, indicating the observed chiral amplification on the molecular, single-chain level.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Kirsty E. McGhee, Michele Guizzardi, Rahul Jayaprakash, Kyriacos Georgiou, Till Jessewitsch, Ullrich Scherf, Giulio Cerullo, Anton Zasedatelev, Tersilla Virgili, Pavlos G. Lagoudakis, David G. Lidzey
Summary: This study proposes a new strategy for the ultrafast control of polariton resonances by modifying the optical cavity mode. The researchers successfully generated fully-reversible blueshifts of the lower polariton branch without reducing the exciton-photon coupling strength. This work has important applications in emerging computing technologies.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Peter Claronino, Rahul Jayaprakash, Till Jessewitsch, Rachel C. Kilbride, Timothy Thornber, Alina Muravitskaya, Robert D. J. Oliver, Ullrich Scherf, Jean-Sebastien G. Bouillard, Ali M. Adawi, David G. Lidzey
Summary: In this study, we demonstrate that increasing the binaphthyl (BN) spacer content in polydioctylfluorene (PFO) can lower the lasing threshold of optically pumped organic lasers by suppressing intermolecular interactions. We utilize laser patterning technique to create physical defects within a vertical microcavity, which enhances the performance and improves the cavity Q-factor of the laser device. These findings suggest the potential of this defect microcavity as an architecture for electrically-pumped laser devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Energy & Fuels
Shahriyar Safat Dipta, Md Habibur Rahaman, Walia Binte Tarique, Ashraful Hossain Howlader, Ayush Pratik, John A. Stride, Ashraf Uddin
Summary: Implementing a double-sided passivation approach can enhance the performance of n-i-p structured PSCs and improve the stability and photovoltaic properties of the cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Daniel Ourinson, Andreas Brand, Andreas Lorenz, Marwan Dhamrin, Sebastian Tepner, Michael Linse, Nathalie Goettlicher, Kosuke Tsuji, Jonas D. Huyeng, Florian Clement
Summary: This work presents two approaches to reduce the amount of silver on the rear side of M2-sized industrial iTOPCon solar cells. The Cu-based approach shows promise with similar power conversion efficiency compared to the conventional approach, while the Al-based approach exhibits some limitations but demonstrates the potential of such type of contact for iTOPCon solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Abasifreke Ebong, Donald Intal, Sandra Huneycutt, Thad Druffel, Ruvini Dharmadasa, Kevin Elmer, Apolo Nambo
Summary: This study demonstrates the successful metallization of a PERC silicon solar cell using screen-printable copper (Cu) paste. The Cu paste contains antioxidant additives and diffusion inhibitors to prevent oxidation and diffusion of Cu. The Cu-printed cells achieved an efficiency of 19% and showed no Cu diffusion after characterization tests. The long-term stability and effectiveness of the Cu diffusion barrier were also confirmed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Senami Zogbo, Wilfried Favre, Olivier Bonino, Marie-Estelle Gueunier-Farret
Summary: Measuring specific contact resistivity (pc) is crucial for interface engineering in high efficiency solar cells. The Transfer Length Method (TLM) is commonly used for evaluating layer sheet resistance (Rsheet) and pc, but it is not suitable for metal/Transparent Conductive Oxide (TCO) interface evaluation in silicon heterojunction (SHJ) cells. This study investigates the parameters that restrict current confinement within the TCO, including mid-gap trap density (Dit) at the a-Si:H/c-Si interface and the activation energy (Ea = Ec - EF) variation of a-Si:H contact layers.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: The phenomenon of ribbon lengthening in PV modules exposed to thermal cycling is not well explained in the literature. In this study, a three layers model is proposed to explain this effect, and the predictions of the model are validated through finite element method simulations and experiments. The results show that the model predictions are consistent with the indirect measurements, but not with the direct measurements. Additionally, it is inferred that the encapsulant plays a role after the solder failure.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: This study investigates the problematic ribbon lengthening observed in PV modules exposed to high amplitude thermal cycling. A simplified system model is proposed and accurate predictions are obtained using the Finite Element Method. The results show that the thickness of the encapsulant has a substantial impact on the lengthening of the ribbons.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Catalan-Gomez, E. Martinez Castellano, M. Schwarz, M. Montes Bajo, L. Dorado Vargas, A. Gonzalo, A. Redondo-Cubero, A. Gallego Carro, A. Hierro, J. M. Ulloa
Summary: This study investigates the use of core-shell gallium nanoparticles as functional light scatterers on solar cells. By optimizing the nanoparticle size, the short-circuit current of the solar cells is significantly improved. The underlying physical mechanism is studied through optical measurements and simulations, and a method to reduce the plasmonic effect of the nanoparticles is demonstrated.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
M. Gamel, G. Lopez, A. M. Medrano, A. Jimenez, A. Datas, M. Garin, I. Martin
Summary: In this study, a highly reflective ohmic contact to p-type c-Ge material is demonstrated, which can improve the efficiency of thermophotovoltaic devices. The experimental results show that this contact can simultaneously meet the requirements of good back surface passivation, low electrical resistivity, and high reflectivity. Moreover, simulations suggest that implementing these back contacts has the potential to achieve conversion efficiencies comparable to high-efficiency c-Ge TPV cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hongyang Wei, Qing Xu, Dongchu Chen, Min Chen, Menglei Chang, Xiufang Ye
Summary: This study prepared solar selective absorption films based on anodic aluminum oxide (AAO) photonic crystals using a unique electrodeposition method. The Co-Ag electrodeposited film exhibited superior solar selective absorption properties and thermal stability.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Ankit Kumar, Ankit Chauhan, Jordi Llobet, Helder Fonseca, Patricia C. Sousa, Carlos Calaza, Gil Shalev
Summary: This study found that decorating subwavelength arrays with SiO2 quasi-nanolenses (qNL arrays) can enhance the absorption of the solar spectrum. Optical absorption mechanisms in qNL arrays were investigated using near-field scanning optical microscopy (NSOM), revealing that the enhancement is a result of the combination of effective antireflection coating, increased optical interactions between adjacent dielectrics for elevated light trapping, and strong light concentration due to the presence of qNLs.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Pingel, T. Wenzel, N. Goettlicher, M. Linse, L. Folcarelli, J. Schube, S. Hoffmann, S. Tepner, Y. C. Lau, J. Huyeng, A. Lorenz, F. Clement
Summary: This study demonstrates the potential to reduce silver consumption in highly efficient SHJ cells through fine-line screen printing using low temperature paste with various screens. The results show that using finer mesh allows for narrower grid fingers and lower resistance, leading to improved cell efficiency. Simulation results indicate that module wire configuration is crucial for reducing silver consumption.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Xibo He, Jun Qiu, Wei Wang, Yicheng Hou, Yong Shuai
Summary: This paper proposes a novel phase change material with high thermal conductivity and stability for fast photo-thermal conversion and storage. The experimental results demonstrate excellent durability and stability of the phase change material, with good performance in thermal conductivity and thermal storage efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Qingyuan Liu, Lin Wang, Zheng Liu, Guohua Liu
Summary: A new evaporating structure consisting of liquid marble with tunable nanowire array is proposed to enhance solar evaporation. The experiments show that the liquid marble with nanowire array exhibits outstanding evaporation performance, which has significant implications for seawater desalination or wastewater treatment.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hao Liu, Qiming Liu, Jinpei Liu, Yonggang Zhao, Yingjie Yu, Yue An, Ganghui Wei, Yanzheng Li, Yujun Fu, Junshuai Li, Deyan He
Summary: Moisture in the air is identified as the main cause of performance degradation in organic-inorganic hybrid solar cells. Exposure to air leads to the growth of thin oxide layer on the interface and the formation of silver sulfide, increasing the series resistance and decreasing the fill factor, thus degrading the cell performance.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
E. Blanco, P. Martin, M. Dominguez, P. Fernandez-Palacios, I. Lombardero, C. Sanchez-Perez, I. Garcia, C. Algora, M. Gabas
Summary: This study addresses the lack of optical parameters for p-type Ge wafers by determining the complex refractive indices of commercial Ge wafers with varying doping levels. The obtained data successfully reproduces the critical points associated with interband transitions and absorption features below the bandgap. The refractive indices were validated through experimental measurements and solar cell simulations.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
