Article
Chemistry, Multidisciplinary
Seon Namgung, Steven J. Koester, Sang-Hyun Oh
Summary: This study demonstrates an ultraflat nanogap platform based on atomic layer deposition for fabricating 2D material-based optical and electronic devices. Short-channel field-effect transistors based on black phosphorus and MoS2, as well as photodetectors with a nanoscale photosensitive channel, were successfully fabricated on this platform, showing higher photosensitivity compared to microscale gap channels.
Review
Materials Science, Multidisciplinary
Erkan Aydin, Cesur Altinkaya, Yury Smirnov, Muhammad A. Yaqin, Kassio P. S. Zanoni, Abhyuday Paliwal, Yuliar Firdaus, Thomas G. Allen, Thomas D. Anthopoulos, Henk J. Bolink, Monica Morales-Masis, Stefaan De Wolf
Summary: Transparent electrodes and metal contacts deposited by magnetron sputtering are widely used in optoelectronic devices, but may cause damage to sensitive device layers. Inserting a buffer layer to shield against such damage is a common mitigation approach. Additionally, implementing alternative, soft-landing deposition techniques can eliminate the buffer-layer requirement.
Article
Nanoscience & Nanotechnology
T. Kavinkumar, Selvaraj Seenivasan, Amarnath T. Sivagurunathan, Yongchai Kwon, Do-Heyoung Kim
Summary: The rational design and development of novel electrode materials with promising nanostructures can effectively improve supercapacitive performance. By using atomic layer deposition, high-performance electrode materials were developed, showing excellent specific capacity and cycling stability. The demonstrated potential of ALD in next-generation supercapacitors is highlighted by the high energy density and exceptional capacity retention of the assembled supercapattery cell.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Raul Zazpe, Hanna Sopha, Jaroslav Charvot, Richard Krumpolec, Jhonatan Rodriguez-Pereira, Jan Michalicka, Jan Mistrik, Dominik Baca, Martin Motola, Filip Bures, Jan M. Macak
Summary: The synthesis of MoTe2 nanosheets by ALD was demonstrated for the first time, showing tight control over thickness and composition. The out-of-plane oriented MoTe2 nanosheets, combined with optimized catalytic edges and fast electron transfer properties, exhibited enhanced catalytic performance for both organic pollutant degradation and hydrogen evolution reactions.
APPLIED MATERIALS TODAY
(2021)
Article
Materials Science, Multidisciplinary
Dorina T. Papanastasiou, Abderrahime Sekkat, Viet Huong Nguyen, Carmen Jimenez, David Munoz-Rojas, Franz Bruckert, Daniel Bellet
Summary: This paper introduces a transparent heater based on silver nanowire networks, protected with a transparent zinc oxide film, for temperature control in biological experiments under transparent microscopic observation. The experimental results demonstrate that the nanocomposites allow rapid and reproducible heating under low applied voltage, and achieve selective heating in different zones of microchannels or adjacent microchannels at different temperatures.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Chun-Yuan Wang, Chun-Yi Chou, Han-Fang Shiue, Hsing-Yang Chen, Chen-Hsiang Ling, Jing-Jong Shyue, Miin-Jang Chen
Summary: In this paper, the authors investigate a method to alter the work function of TiN thin films using atomic layer annealing (ALA) technique. The results show that by incorporating layer-by-layer atomic layer deposition cycle with argon plasma treatment, the density, stoichiometry, and crystallinity of TiN thin films can be significantly improved at a low temperature of 300 degrees C, resulting in a wide tunability of the TiN metal gate's work function.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
Hanjorg Wagner, Valentin Ripka, Andrea Dellith, Jan Dellith, Florian Wittkaemper, Uwe Hubner, Mario Ziegler
Summary: This paper reports the testing of high performance plasmonic broadband absorbing black coatings fabricated by metastable atomic layer deposition (MS-ALD) for space applications. Humidity testing, thermal cycling, exposure to atomic oxygen, and adhesion testing were used as testing methods. The results show that the films with thickness greater than 9 μm are able to withstand the humidity tests, thermal cycling, and exposure to atomic oxygen without significant loss of their broadband absorption. However, the adhesion of the films has not yet been sufficient to meet the requirements posed by the space environment. Therefore, the authors propose to investigate the coating of the MS-ALD films with high refractive index coatings.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Review
Chemistry, Multidisciplinary
Youngjun Kim, Whang Je Woo, Donghyun Kim, Sangyoon Lee, Seung-min Chung, Jusang Park, Hyungjun Kim
Summary: The synthesis and modulation of 2D transition metal chalcogenides by ALD play a crucial role in nanoelectronics, sensors, and energy applications.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Abdolkhaled Mohammadi, Arthur Hagopian, Syreina Sayegh, Mikhael Bechelany, Jean-Sebastien Filhol, Reza Younesi, Lorenzo Stievano, Laure Monconduit
Summary: This study investigates the detailed mechanism of lithium deposition behavior in lithium metal batteries and finds that zinc oxide coating can induce homogeneous lithium plating, leading to improved electrochemical performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Julia D. Lenef, Si Young Lee, Kalyn M. Fuelling, Kevin E. Rivera Cruz, Aditya Prajapati, Daniel O. Delgado Cornejo, Tae H. Cho, Kai Sun, Eugenio Alvarado, Timothy S. Arthur, Charles A. Roberts, Christopher Hahn, Charles C. L. McCrory, Neil P. Dasgupta
Summary: In this study, Cu catalysts were prepared using plasma-enhanced atomic layer deposition (PEALD) with tunable control of Cu nanoparticle size and areal loading. The electrochemical reduction of CO2 at the Cu surface showed a high Faradaic efficiency (>75%) for C2+ products. The PEALD Cu catalysts demonstrated improved selectivity for C2H4 and stability in C2H4 production rate.
Article
Physics, Applied
Kang Yuan, Rui Ma, Li Yang, Yang Yang, Jiaming Sun
Summary: In this study, Ga2O3/TiO2 nanolaminate films were fabricated to improve the electrical injection and stability of Al2O3:Er MOSLEDs. The optimal GTO nanolaminate demonstrated high tolerance to electric field, resulting in enhanced electroluminescence performance and excitation efficiency. The design principle of the dielectric nanolaminates provides a promising route for the application of oxide-based optoelectronic devices.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Review
Energy & Fuels
Susmi Anna Thomas
Summary: This article provides a review of the potential applications of black phosphorous (BP) in rechargeable batteries. It discusses the unique properties of BP compared to other 2D materials and explores various synthesis methods. The article also examines the application of BP in different types of rechargeable batteries and emphasizes the preparation of BP-based hybrid electrodes. The advantages of BP-based hybrid electrodes, such as high specific capacity and long cycle life, highlight their potential use in next-generation rechargeable batteries.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Laabdia Midani, Wael Ben-Yahia, Vincent Salles, Catherine Marichy
Summary: This study utilizes a modified open-air spatial atomic layer deposition (SALD) head to fabricate complex oxide patterns on various substrates, achieving direct patterning with different lateral sizes through reversible modification of the diameter of the metal precursor outlet. Maskless deposition of uniform and homogenous TiO2 and ZrO2 thin films is successfully demonstrated with control at the nanoscale for film thickness.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Mohamed A. Basyooni, Shrouk E. Zaki, Mohammed Tihtih, Issam Boukhoubza, Redouane En-nadir, Issam Derkaoui, Gamal F. Attia, Sule Ates, Yasin Ramazan Eker
Summary: Self-powered UV sensing has immense potential for military and civilian applications, but achieving high responsivity and fast response/recovery time is challenging. This study introduces a breakthrough self-powered photodetector (PD) using a Schottky junction of 2D alpha-MoO3/iridium (Ir)/Si ultrathin film. The PD response is enhanced by plasmonic Ir-induced hot carriers, enabling detection in 0.1 ms. The addition of a 4 nm Ir layer increases responsivity from 0 to 34 A W-1 and improves external quantum efficiency under 365 nm light illumination. These findings have important implications for UV sensing technology in various fields.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Seo Young Jang, Hye Min Lee, Ju Young Sung, Se Eun Kim, Jae Deock Jeon, Yewon Yun, Sang Mo Moon, Joung Eun Yoo, Ji Hyeon Choi, Tae Joo Park, Sang Woon Lee
Summary: The epitaxial growth of NbN thin film was achieved for the first time using ALD with NbCl5 and NH3 as precursors. The matching lattice structure between NbN and MgO allowed for epitaxial growth with a small lattice mismatch. The Cl impurity concentration in epitaxial NbN thin films was significantly lower compared to those grown on a SiO2 substrate, potentially due to a bond length change induced by a residual strain at the NbN/MgO interface. The epitaxial growth of NbN thin films led to improved crystallinity and a 50% reduction in resistivity.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Ali Saeidi, Farzan Jazaeri, Igor Stolichnov, Gia V. Luong, Qing-Tai Zhao, Siegfried Mantl, Adrian M. Ionescu
Article
Nanoscience & Nanotechnology
Igor Stolichnov, Matteo Cavalieri, Enrico Colla, Tony Schenk, Terence Mittmann, Thomas Mikolajick, Uwe Schroeder, Adrian M. Ionescu
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Multidisciplinary
Terence Mittmann, Monica Materano, Patrick D. Lomenzo, Min Hyuk Park, Igor Stolichnov, Matteo Cavalieri, Chuanzhen Zhou, Ching-Chang Chung, Jacob L. Jones, Thomas Szyjka, Martina Mueller, Alfred Kersch, Thomas Mikolajick, Uwe Schroeder
ADVANCED MATERIALS INTERFACES
(2019)
Article
Multidisciplinary Sciences
Ali Saeidi, Farzan Jazaeri, Igor Stolichnov, Christian C. Enz, Adrian M. Ionescu
SCIENTIFIC REPORTS
(2019)
Correction
Chemistry, Multidisciplinary
Terence Mittmann, Monica Materano, Patrick D. Lomenzo, Min Hyuk Park, Igor Stolichnov, Matteo Cavalieri, Chuanzhen Zhou, Ching-Chang Chung, Jacob L. Jones, Thomas Szyjka, Martina Mueller, Alfred Kersch, Thomas Mikolajick, Uwe Schroeder
ADVANCED MATERIALS INTERFACES
(2019)
Article
Engineering, Electrical & Electronic
Anne S. Verhulst, Ali Saeidi, Igor Stolichnov, Alireza Alian, Hiroshi Iwai, Nadine Collaert, Adrian M. Ionescu
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2020)
Article
Chemistry, Multidisciplinary
Ali Saeidi, Teodor Rosca, Elvedin Memisevic, Igor Stolichnov, Matteo Cavalieri, Lars-Erik Wernersson, Adrian M. Ionescu
Correction
Engineering, Electrical & Electronic
Anne S. Verhulst, Ali Saeidi, Igor Stolichnov, Alireza Alian, Hiroshi Iwai, Nadine Collaert, Adrian M. Ionescu
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2020)
Article
Physics, Applied
Carlotta Gastaldi, Matteo Cavalieri, Ali Saeidi, Eamon O'Connor, Sadegh Kamaei, Teodor Rosca, Igor Stolichnov, Adrian Mihai Ionescu
Summary: HfO2-based ferroelectrics show potential for logic and memory applications due to their compatibility and ferroelectric properties. Research on negative capacitance switching in Si:HfO2 films suggests that intrinsic switching provides an adequate description of the polarization hysteresis, affirming the usability of hafnia-based ferroelectrics for negative capacitance logic devices and highlighting the crucial role of the intrinsic mechanism in the dielectric response of these materials.
APPLIED PHYSICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Carlotta Gastaldi, Matteo Cavalieri, Ali Saeidi, Eamon O'Connor, Francesco Bellando, Igor Stolichnov, Adrian M. Ionescu
Summary: In this work, the authors experimentally explore and compare FET gate stacks with and without an inner metal plane, demonstrating that the absence of the inner metal plane stabilizes the negative capacitance regime, leading to hysteresis-free performance.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Engineering, Electrical & Electronic
C. Gastaldi, S. Kamaei, M. Cavalieri, A. Saeidi, I. Stolichnov, I. Radu, A. M. Ionescu
Summary: In this work, we introduce the concept of a tunable ferroelectric junctionless transistor that can emulate the functionality of biological tri-partite synapses. The device, called Fe-JLFET, consists of a thin film and Si-doped HfO2 ferroelectric material. The back-gate voltage of the device is used to tune the synaptic weight by more than 400x, mimicking the function of an astrocyte. The proposed Fe-JLFET synapse device shows simplicity in fabrication, extended programmability, and robustness, making it promising for future neuromorphic ICs.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Physics, Applied
I Stolichnov, M. Cavalieri, C. Gastaldi, M. Hoffmann, U. Schroeder, T. Mikolajick, A. M. Ionescu
APPLIED PHYSICS LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Matteo Cavalieri, Eamon O'Connor, Carlotta Gastaldi, Igor Stolichnov, Adrian M. Ionescu
ACS APPLIED ELECTRONIC MATERIALS
(2020)
Article
Engineering, Electrical & Electronic
Andrei Muller, Riyaz A. Khadar, Tobias Abel, Nour Negm, Teodor Rosca, Anna Krammer, Matteo Cavalieri, Andreas Schueler, Fatemeh Qaderi, Jens Bolten, Max Lemme, Igor Stolichnov, Adrian M. Ionescu
ACS APPLIED ELECTRONIC MATERIALS
(2020)