Article
Chemistry, Multidisciplinary
Kanghao Shi, Yun Liu, Yingmin Luo, Jiming Bian, Jijun Qiu
Summary: Iodine is the key element in inducing the infrared response of PbSe detectors, forming a 3D network structure acting as photo-generated electron transport channel.
Article
Physics, Applied
I. Shlyakhov, K. Iakoubovskii, S. Banerjee, A. Gaur, D. Lin, I. Asselberghs, I. Radu, J. Chai, M. Yang, S. J. Wang, M. Houssa, A. Stesmans, V. Afanas'ev
Summary: Investigated the photoconductivity properties of MoS2 and WS2, detecting excitonic peaks and explaining their influence on photoconductivity.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Subham Paramanik, Amlan J. Pal
Summary: A family of rudorffites based on silver-bismuth-iodide undergoes a transition from positive photoconductivity (PPC) to negative photoconductivity (NPC) with variation in precursor stoichiometry. The NPC is observed in silver-rich rudorffites due to illumination-induced trap-states leading to carrier recombination and decreased conductivity. In addition to photoconductivity, the rudorffite-based devices exhibit resistive switching between high resistive state (HRS) and low resistive state (LRS) under voltage pulses, and the switching process is reversible and associated with a memory phenomenon. The NPC-exhibiting rudorffites also switch to the HRS under illumination, indicating control of resistive state through electrical and optical inputs. These interesting properties are utilized to demonstrate OR logic gate operation and suggest the materials' potential for in-memory logic operations.
Article
Physics, Applied
Zhao-Yuan Sun, Yang Li, Ze Zhao, Shou-Xin Zhao, Jia Zhang, Liang Zhen, Cheng-Yan Xu
Summary: The oxidation of GaSe to form amorphous Ga2O3-x as a tunneling layer in GaSe/InSe vdWs heterostructure devices is demonstrated. It shows robust charge trapping and releasing ability and enables positive and negative persistent photocurrent characteristics. The achieved OFF/ON current ratio of up to 10^7 in this material is several orders of magnitude larger than that in other vdWs materials and heterostructure devices, leading to the realization of optical memory with 14 distinct current levels and low power consumption.
APPLIED PHYSICS LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Haoyu Gong, Jinyi Lin, Huibin Sun
Summary: Organic small-molecule semiconductor materials have excellent properties and are the focus of attention. However, the preparation of continuous and highly ordered organic small-molecule semiconductor nanocrystal arrays faces challenges due to the randomness of crystal orientation and growth location. Nanocrystal array engineering is more flexible than that of inorganic materials, and it is a key step towards practical application. Various methods have been developed for nanocrystal array preparation, and the typical and recent progress of nanocrystal array engineering is summarized in this review. In addition, the emerging applications of organic small-molecule semiconductor nanocrystal arrays are introduced.
Article
Materials Science, Multidisciplinary
Paris Papagiorgis, Marios Sergides, Andreas Manoli, Modestos Athanasiou, Caterina Bernasconi, Fedros Galatopoulos, Apostolos Ioakeimidis, Constantinos Nicolaides, Epameinondas Leontidis, Theodossis Trypiniotis, Stelios Choulis, Maryna I. Bodnarchuk, Maksym V. Kovalenko, Andreas Othonos, Grigorios Itskos
Summary: Ligand exchange during or after the colloidal synthesis of nanocrystals enables the production of conductive nanocrystal solids for optoelectronics. A post-synthetic ligand washing process was developed, leading to increased photoconductance and improved optoelectronic properties for both FAPbI3 and CsPbBr3 nanocrystals.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Nolan A. Miller, Zhaofan Li, Wenjie Xia, Chelsea S. Davis
Summary: Bioderived materials are increasingly favored over nonrenewable resources. This study explores the use of cellulose nanocrystals (CNCs) to manufacture thin films and investigates the mechanical properties of these films. The results indicate that the modulus of the film is higher when the CNC particles are aligned parallel to the compression direction.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Akhil Kishore, Merbin John, Alessandro M. Ralls, Subin Antony Jose, Udaya Bhat Kuruveri, Pradeep L. Menezes
Summary: Ultrasonic nanocrystal surface modification (UNSM) is a unique mechanical impact-based method that can generate gradient nanostructured surface layers with remarkable mechanical properties. This review paper provides an overview of the current state-of-the-art UNSM technique, its effects on different mechanical properties and microstructure development, and explores its applications.
Article
Computer Science, Information Systems
Martin Omana, Sejuti Bardhan, Cecilia Metra
Summary: This paper discusses the impact of selector faults in ReRAMs on the operation of crossbar memory arrays, highlighting that such faults can cause a large number of errors. The current error correction capabilities are insufficient, therefore new solutions are needed to address selector faults.
IEEE TRANSACTIONS ON EMERGING TOPICS IN COMPUTING
(2022)
Article
Polymer Science
Kusmono, Muhammad Waziz Wildan, Fadhlan Ihsan Lubis
Summary: The addition of 4 wt% CNC and 20 wt% glycerol can significantly improve the tensile strength and stiffness of chitosan composite films, while adding more than 8 wt% CNC results in a drastic reduction in strength and ductility.
Article
Optics
Yu-Chen Zhang, Zhi-Yuan Yu, Xia-Yan Xue, Fei-Long Wang, Shuai Li, Xi-Yuan Dai, Li Wu, Shu-Yu Zhang, Song-You Wang, Ming Lu
Summary: High brightness Si nanocrystal white light-emitting diodes based on differentially passivated silicon nanocrystals were reported, with a photoluminescence quantum yield of 11.4% and a peak luminance of 2060 cd/m². The color temperature of the emitted white light could be adjusted within a range from 3686 to 5291 K.
Article
Chemistry, Physical
Zhangqiang Yang, Xiangyu Xu, Kelvin H. L. Zhang, Ye Yang
Summary: In this study, the photoconductivity of gallium oxide thin films at different temperatures was investigated using time-resolved terahertz spectroscopy. The findings suggest that electron-hole recombination in the conduction band is determined by directional electron drift instead of random diffusion. The electron mobilities measured in response to the terahertz field are significantly higher than the previously reported Hall mobilities, indicating that the electron drift is immune from scattering with macroscopic defects.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Xin Shan, Zeyu Wu, Yangyang Xie, Xin Lin, Baozeng Zhou, Yupeng Zhang, Xiaobing Yan, Tianling Ren, Fang Wang, Kailiang Zhang
Summary: In this study, a centimeter-scale single crystal alpha-MoO3 was prepared using an oxygen assisted substrate-free self-standing growth method and mechanism, and high-performance synaptic devices were constructed based on this material. The oxygen assisted growth mechanism of alpha-MoO3 was developed from the periodic bond chain theory, and the resulting large-scale alpha-MoO3 exhibited high homogeneity and single crystalline characteristic. With an optimized oxygen partial pressure, the centimeter-scale alpha-MoO3 enabled continuous conductance modulation in the prepared memristor. Moreover, the as-prepared alpha-MoO3 memristors demonstrated low-energy consumption and successfully emulated essential synaptic behaviors.
Article
Chemistry, Multidisciplinary
Thom R. Harris-Lee, S. Andrew L. Johnson, Lina Wang, Philip J. Fletcher, Jie Zhang, Cameron Bentley, Christopher R. Bowen, Frank Marken
Summary: Water splitting by photocatalysis, particularly using seawater or wastewater, has the potential to play a significant role in the future hydrogen economy. This study explores the use of newly developed 3D metal-wire substrates as photoactive electrodes for photoelectrochemical processes. Titanium microwires with a rutile TiO2 nanocrystal coating are demonstrated to produce effective photoanodes, with adjustable lengths of TiO2 rods. The study also highlights the effectiveness of vacuum annealing in enhancing TiO2 photochemical processes and assesses the formation of oxygen and chlorine in electrolyte media.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Bing-jing Huang, Zhen-hai Li, Jian-Chang Li
Summary: The mechanical performance of cellulose nanocrystal (CNC) strain sensors is affected by bending induced by temperature changes. At room temperature, the decrease in sensitivity of the sensor is caused by the destruction and recombination of the hydrogen bonds network at the interfacial crack, while at low temperature, the formation of ice crystals accelerates crack propagation, resulting in sensor deterioration.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Alan R. Bell, Jessamyn A. Fairfield, Eoin K. McCarthy, Shaun Mills, John J. Boland, Guillaume Baffou, David McCloskey
Article
Physics, Applied
Paschalis Gkoupidenis, Nathan Schaefer, Xenofon Strakosas, Jessamyn A. Fairfield, George G. Malliaras
APPLIED PHYSICS LETTERS
(2015)
Article
Physics, Applied
Sean M. Oliver, Jessamyn A. Fairfield, Allen T. Bellew, Sunghun Lee, James G. Champlain, Laura B. Ruppalt, John J. Boland, Patrick M. Vora
APPLIED PHYSICS LETTERS
(2016)
Article
Chemistry, Multidisciplinary
J. A. Fairfield, C. G. Rocha, C. O'Callaghan, M. S. Ferreira, J. J. Boland
Article
Nanoscience & Nanotechnology
Curtis J. O'Kelly, Jessamyn A. Fairfield, David McCloskey, Hugh G. Manning, John F. Donegan, John J. Boland
ADVANCED ELECTRONIC MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Jessamyn A. Fairfield, Carlos Ritter, Allen T. Bellew, Eoin K. McCarthy, Mauro S. Ferreira, John J. Boland
Article
Chemistry, Multidisciplinary
Curtis O'Kelly, Jessamyn A. Fairfield, John J. Boland
Article
Chemistry, Multidisciplinary
Lauren J. Willis, Jessamyn A. Fairfield, Tali Dadosh, Michael D. Fischbein, Marija Drndic
Article
Chemistry, Multidisciplinary
Peter N. Nirmalraj, Allen T. Bellew, Alan P. Bell, Jessamyn A. Fairfield, Eoin K. McCarthy, Curtis O'Kelly, Luiz F. C. Pereira, Sophie Sorel, Diana Morosan, Jonathan N. Coleman, Mauro S. Ferreira, John J. Boland
Article
Chemistry, Multidisciplinary
A. T. Bellew, A. P. Bell, E. K. McCarthy, J. A. Fairfield, J. J. Boland
Article
Multidisciplinary Sciences
Paschalis Gkoupidenis, Dimitrios A. Koutsouras, Thomas Lonjaret, Jessamyn A. Fairfield, George G. Malliaras
SCIENTIFIC REPORTS
(2016)
Article
Communication
Joseph Roche, Jessamyn A. Fairfield, Aine Gallagher, Laura Bell
SCIENCE COMMUNICATION
(2020)
Article
Education & Educational Research
Adriana Cardinot, Jessamyn A. Fairfield
INTERNATIONAL JOURNAL OF GAME-BASED LEARNING
(2019)
Article
Chemistry, Multidisciplinary
Jessamyn A. Fairfield
ADVANCED FUNCTIONAL MATERIALS
(2018)