Review
Nanoscience & Nanotechnology
Yanhao Wang, Jinbo Pang, Qilin Cheng, Lin Han, Yufen Li, Xue Meng, Bergoi Ibarlucea, Hongbin Zhao, Feng Yang, Haiyun Liu, Hong Liu, Weijia Zhou, Xiao Wang, Mark H. Rummeli, Yu Zhang, Gianaurelio Cuniberti
Summary: Palladium diselenide (PdSe2) has attracted extensive research interest due to its novel pentagonal structure and unique physical characteristics, leading to significant progress in physics, chemistry, and electronics. Research on PdSe2 includes its structure, properties, synthesis, and applications, offering important insights for the 2D material community.
NANO-MICRO LETTERS
(2021)
Article
Multidisciplinary Sciences
Reem B. Rashid, Weiyuan Du, Sophie Griggs, Iuliana P. Maria, Iain McCulloch, Jonathan Rivnay
Summary: The study introduces an active sensing node and inverter based on OECTs for signal amplification in bioelectronic sensing, providing new opportunities to improve signal quality and reduce the burden of signal transmission, while also demonstrating compatibility with nontraditional fabrication methods.
Article
Chemistry, Multidisciplinary
Jaeyoung Kim, Kyungjune Cho, Jinsu Pak, Woocheol Lee, Junseok Seo, Jae-Keun Kim, Jiwon Shin, Juntae Jang, Kyeong-Yoon Baek, Jonghoon Lee, Seungjun Chung, Keehoon Kang, Takhee Lee
Summary: This paper investigates the avalanche multiplication process in ambipolar materials and analyzes the contribution of electrons and holes, providing a method and theoretical support for high-performance electronic devices utilizing ambipolar materials.
Article
Chemistry, Multidisciplinary
Yadong Zhang, Xiaoting Sun, Kunpeng Jia, Huaxiang Yin, Kun Luo, Jiahan Yu, Zhenhua Wu
Summary: The study shows that 2D InSe flakes undergo irreversible degradation when exposed to the atmosphere, affecting the performance of field effect transistors. Using a hard shadow mask instead of lithography can prevent material contamination and achieve high-performance InSe FETs. The InSe FET exhibits low hysteresis, high on/off ratio, relatively high I-on, and low subthreshold swing, suggesting potential for high-performance logic devices.
Article
Multidisciplinary Sciences
Eyal Stein, Oded Nahor, Mikhail Stolov, Viatcheslav Freger, Iuliana Maria Petruta, Iain McCulloch, Gitti L. Frey
Summary: This study demonstrates a simple and tunable approach for fabricating ambipolar organic electrochemical transistors (OECTs) and circuits by judicious selection of p- and n-type materials for blend-based organic mixed ionic-electronic conductors (OMIECs). These ambipolar OECTs exhibit high transconductance, excellent stability, and high gains, providing a new paradigm for the fabrication of ambipolar OMIECs and circuits with little constraints on materials design and synthesis.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Hanlin Wang, Ye Wang, Zhenjie Ni, Nicholas Turetta, Sai Manoj Gali, Haijun Peng, Yifan Yao, Yusheng Chen, Iwona Janica, David Beljonne, Wenping Hu, Artur Ciesielski, Paolo Samori
Summary: MXenes are highly conductive layered materials that can be functionalized to enhance electron mobility in conjugated polymers and 2D materials, resulting in unprecedented performance and functionality for polymer transistors. Intercalant engineering represents an efficient strategy to tune the electronic properties of MXenes, leading to the fabrication of high-performance opto-electronics and energy applications.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Dorra Mahdaoui, Chika Hirata, Kahori Nagaoka, Kun'ichi Miyazawa, Kazuko Fujii, Toshihiro Ando, Manef Abderrabba, Osamu Ito, Shinjiro Yagyu, Yubin Liu, Yoshiyuki Nakajima, Kazuhito Tsukagoshi, Takatsugu Wakahara
Summary: Organic cocrystals assembled by noncovalent interactions have attracted significant attention due to their remarkable properties and applications. This study explores the ambipolar charge transfer properties of C-70/Fc nanosheets and demonstrates a thermally induced irreversible switching in the device's semiconducting behavior, from ambipolar to unipolar. Additionally, the C-70/Fc nanosheets show better thermal stability compared to C-60/Fc nanosheets.
Article
Polymer Science
Si-Yu Lv, Qi-Yi Li, Bo-Wen Li, Jie-Yu Wang, You-Bing Mu, Liang Li, Jian Pei, Xiao-Bo Wan
Summary: This study reports the synthesis of electron deficient thiazoloisoindigo by using an electron deficient thiazole as the flanked moiety. The resulting polymer exhibits high and balanced hole/electron mobility in polymeric field-effect transistors.
CHINESE JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Masatoshi Ito, Tomoko Fujino, Lei Zhang, So Yokomori, Toshiki Higashino, Rie Makiura, Kanokwan Jumtee Takeno, Taisuke Ozaki, Hatsumi Mori
Summary: Researchers synthesized planar alkoxy-substituted nickel bis(dithiolene) analogs with good solubility and crystallinity, which exhibited excellent ambipolar semiconductor performance in air. By addressing the molecular structure issue, they achieved high carrier mobility and large on/off ratio.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Takatsugu Wakahara, Kahori Nagaoka, Chika Hirata, Kun'ichi Miyazawa, Kazuko Fujii, Yoshitaka Matsushita, Osamu Ito, Makito Takagi, Tomomi Shimazaki, Masanori Tachikawa, Yoshiki Wada, Shinjiro Yagyu, Yubin Liu, Yoshiyuki Nakajima, Kazuhito Tsukagoshi
Summary: In this study, we report the synthesis of novel single-cocrystal nanoribbons with ambipolar charge transport characteristics from C-70 and 5,10,15,20-tetrakis(3,5-dimethoxyphenyl)porphyrin (3,5-TPP) in a 3:2 ratio. The C-70/3,5-TPP nanoribbons exhibit a new strong absorption band in the near-infrared region, indicating the presence of charge-transfer interactions between C-70 and 3,5-TPP in the cocrystals. The mechanism of the charge-transport properties of the nanoribbons is elucidated using photoemission yield spectroscopy in air and theoretical calculations, which confirm the crucial role of strong interaction between porphyrins in the one-dimensional porphyrin chains formed in C-70/3,5-TPP nanoribbons.
Review
Chemistry, Physical
Wennan Hu, Zhe Sheng, Xiang Hou, Huawei Chen, Zengxing Zhang, David Wei Zhang, Peng Zhou
Summary: Ambipolar 2D semiconductors, with excellent gate-controlled capability and distinctive physical characteristics, allow for dynamic tuning between holes and electrons, leading to the development of novel devices with advantages in various applications. This review provides a comprehensive overview of the basic knowledge, current semiconductors, preparation approaches, properties, and emerging device structures in the field of ambipolar 2D semiconductors. These materials hold great potential for future developments in new devices with novel functions and the advancement of 2D materials applications.
Article
Chemistry, Physical
Toshiki Higashino, Takehiko Mori
Summary: Ambipolar transistor properties have been observed in various small-molecule materials, requiring a small energy gap and specific molecular designs. In addition to energy levels, an inert passivation layer plays an important role. Extraordinary π-electron systems and some donor/acceptor cocrystals also exhibit ambipolar transport.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Yuqiu Lei, Peiyun Li, Yuting Zheng, Ting Lei
Summary: Organic electrochemical transistors (OECTs) have shown great potential in various applications due to their high transconductance, low operating voltages, and good biocompatibility. However, the development of n-type and ambipolar OECT materials has lagged behind, which has limited the advancement of OECT-based logic circuits.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Review
Chemistry, Multidisciplinary
Yihan Zhang, Yongshuai Wang, Can Gao, Zhenjie Ni, Xiaotao Zhang, Wenping Hu, Huanli Dong
Summary: Organic semiconductors have attracted attention and research interest for their unique combination of semiconducting properties, structural tunability, flexibility, and low cost. The development of n-type and ambipolar organic semiconductors has been lagging behind that of p-type materials due to limitations in material synthesis and device fabrication. However, recent advancements in synthetic methods have greatly expanded the range of n-type and ambipolar materials and led to the development of multi-functional device applications. This review focuses on the synthesis methods and advanced materials with improved charge carrier mobility, high mobility and strong emission, and thermoelectric properties of n-type and ambipolar organic semiconductors. Additionally, multi-functional device applications are highlighted as examples of these developed materials.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Physics, Applied
Qin-Cheng Zhu, Yu Liu, Ming-Hui An, Ran Ding, Gao-Da Ye, Xi Gai, Hai Wang, Ming-Xu Du, Shuo-Nan Chen, Jing Feng, Hong-Bo Sun
Summary: By using mixed p- and n-type molecules as an ambipolar host for red and green dopants, ambipolar white organic single crystals with balanced carrier transport and emission intensity were obtained. These single-crystal WOLEDs achieved the highest brightness and current efficiency reported to date, along with a high color rendering index that varied with increasing driving current. This strategy is expected to support practical applications of organic single crystal-based OLEDs.
APPLIED PHYSICS LETTERS
(2021)
Article
Engineering, Chemical
Somayeh Tajik, Abbas Aghaei Afshar, Saeedeh Shamsaddini, Mohammad Bagher Askari, Zahra Dourandish, Fariba Garkani Nejad, Hadi Beitollahi, Antonio Di Bartolomeo
Summary: This study developed a sensitive electrochemical sensor based on a carbon paste electrode for accurate detection of the anticancer drug dasatinib. The sensor showed excellent electrocatalytic activity towards dasatinib, enabling reliable detection at low concentrations and effective detection in the presence of doxorubicin.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Alessandro Grillo, Zixing Peng, Aniello Pelella, Antonio Di Bartolomeo, Cinzia Casiraghi
Summary: This paper presents a simple and cost-effective method for fabricating printed graphene-silicon rectifying devices using inkjet printing. The devices exhibit a high ON/OFF ratio and significant photovoltaic effect, making them suitable for a wide range of electronic and optoelectronic applications.
Article
Chemistry, Multidisciplinary
Somayeh Tajik, Fatemeh Sharifi, Behnaz Aflatoonian, Antonio Di Bartolomeo
Summary: This article introduces an ultrasensitive and selective voltammetric sensor for the determination of ketoconazole (KTC) in real samples. It utilizes a modified carbon paste electrode with a sheaf-like Ce-BTC MOF nanostructure and ionic liquid. The electrode exhibits excellent electrocatalytic activity for KTC oxidation, with a detection limit of 0.04 μM and a sensitivity of 0.1342 μA·μM-1. It can effectively monitor KTC in aqueous samples.
Article
Nanoscience & Nanotechnology
Aniello Pelella, Daniele Capista, Maurizio Passacantando, Enver Faella, Alessandro Grillo, Filippo Giubileo, Nadia Martucciello, Antonio Di Bartolomeo
Summary: In this study, a photodetector with bias-tuneable current is achieved by adding a CNT/Si3N4/Si capacitor to a prefabricated metal-insulator-semiconductor diode. The device exhibits high photoresponsivity and external quantum efficiency, and can be used as an optoelectronic Boolean logic device. It also possesses the capability of self-powering.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Filippo Giubileo, Daniele Capista, Enver Faella, Aniello Pelella, Woo Young Kim, Paola Benassi, Maurizio Passacantando, Antonio Di Bartolomeo
Summary: This experimental study investigates the field emission properties of commercially available graphene flowers cloth. Material characterization confirms the formation of high-quality vertical few-layers graphene nanosheets. The results demonstrate a low turn-on field and a high field enhancement factor in a small cathode-anode separation distance range. The study also shows that the turn-on field increases with distance while the field enhancement factor decreases. Additionally, the time stability of the field emission current is reported.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Physics, Condensed Matter
Loredana Viscardi, Kimberly Intonti, Arun Kumar, Enver Faella, Aniello Pelella, Filippo Giubileo, Stephan Sleziona, Osamah Kharsah, Marika Schleberger, Antonio Di Bartolomeo
Summary: This study reports the fabrication and electrical characterization of multilayer black phosphorus (BP)-based field effect transistors with Ni or NiCr alloy contacts. The devices exhibit p-type conduction and hysteresis in the transfer characteristics, making them suitable for nonvolatile memories. The differences between Ni and NiCr contacts are investigated, and the Y-function method is used to extract the channel mobility and contact resistances. Ni contacts have a specific contact resistance of 6.3 kΩμm, while NiCr contacts have 18.1 kΩμm. These findings are crucial for the technological advancement of multilayer BP in electronic and optoelectronic devices.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Daniele Capista, Luca Lozzi, Aniello Pelella, Antonio Di Bartolomeo, Filippo Giubileo, Maurizio Passacantando
Summary: Photodetectors based on vertical multi-walled carbon nanotube (MWCNT) film-Si heterojunctions are successfully achieved by growing MWCNTs on n-type Si substrates covered with Si3N4 layers. Spatially resolved photocurrent measurements demonstrate that higher photo detection is achieved in regions with thinner MWCNT film, resulting in nearly 100% external quantum efficiency. Therefore, a simple method utilizing scotch tape is proposed to tune the thickness and density of the as-grown MWCNT film, thereby enhancing the device photo-response.
Article
Nanoscience & Nanotechnology
Kimberly Intonti, Enver Faella, Loredana Viscardi, Arun Kumar, Ofelia Durante, Filippo Giubileo, Maurizio Passacantando, Hoi Tung Lam, Konstantinos Anastasiou, Monica F. Craciun, Saverio Russo, Antonio Di Bartolomeo
Summary: This study reports the optoelectronic characterization of few-layer ReSe2 field effect transistors at different pressures. The devices exhibit a dominant n-type behavior with low Schottky barrier and significant hysteresis. The conductance and mobility of the devices are affected by air pressure, increasing with lower pressure due to the desorption of electronegative air molecules. The photoresponse of the device changes from positive photoconductivity at higher pressure to negative photoconductivity at lower pressure, which can be explained by the desorption of molecules and the defect trapping of photogenerated carriers.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Arun Kumar, Loredana Viscardi, Enver Faella, Filippo Giubileo, Kimberly Intonti, Aniello Pelella, Stephan Sleziona, Osamah Kharsah, Marika Schleberger, Antonio Di Bartolomeo
Summary: We investigated the temperature dependence of transport properties and memory behavior in ultrathin black phosphorus field-effect transistors. The devices displayed a decrease in electrical conductance and field-effect mobility as the temperature increased. The field-effect mobility was 283 cm(2)V(-1)s(-1) at 150 K and reduced to 33 cm(2)V(-1)s(-1) at 340 K when the voltage gate sweep range was +/- 50 V. The transfer characteristics exhibited an increasing hysteresis width with temperature, which was utilized to create non-volatile memories with a wider programming window at higher temperatures.
Article
Chemistry, Multidisciplinary
Arun Kumar, Enver Faella, Ofelia Durante, Filippo Giubileo, Aniello Pelella, Loredana Viscardi, Kimberly Intonti, Stephan Sleziona, Marika Schleberger, Antonio Di Bartolomeo
Summary: In this study, a simple approach for a nonvolatile opto-electronic memory device based on a MoS2 transistor with light induced charge storage capability is presented. The device exhibits a high on/off current ratio and hysteresis width modulation by air pressure, and shows persistent photoconductivity with excellent photo responsive memory performance. Furthermore, the combination of gate voltage and light can be used to control the transistor current and increase the memory window significantly.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Nanoscience & Nanotechnology
A. Di Bartolomeo, A. Kumar, O. Durante, A. Sessa, E. Faella, L. Viscardi, K. Intonti, F. Giubileo, N. Martucciello, P. Romano, S. Sleziona, M. Schleberger
Summary: The photoconductivity of monolayer MoS2 back-gate transistors is investigated with respect to temperature and pressure. The photocurrent shows linear increase with light intensity, reaching a maximum responsivity of approximately 30 A/W in air. The photocurrent enhancement is observed at elevated temperatures and reduced pressures, which can be attributed to the desorption of adsorbates such as O2 and H2O molecules, leading to an increase in the n-doping level and channel current.
MATERIALS TODAY NANO
(2023)
Article
Chemistry, Multidisciplinary
Stephan Sleziona, Aniello Pelella, Enver Faella, Osamah Kharsah, Lucia Skopinski, Andre Maas, Yossarian Liebsch, Jennifer Schmeink, Antonio Di Bartolomeo, Marika Schleberger
Summary: Field-effect transistors based on molybdenum disulfide (MoS2) were irradiated with Xe30+ ions to introduce defects and investigate their effects on electrical properties. The irradiation resulted in decreased charge carrier mobility and increased conductivity, as well as a significantly reduced n-doping and enhanced hysteresis. The irradiated MoS2 transistor exhibited memory-like behavior with remarkably longer relaxation times compared to previous works.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Aniello Pelella, Kimberly Intonti, Loredana Viscardi, Ofelia Durante, Daniele Capista, Maurizio Passacantando, Filippo Giubileo, Paola Romano, Mohammed Ali S. Alshehri, Manal Safar G. Alghamdi, Monica Felicia Craciun, Saverio Russo, Antonio Di Bartolomeo
Summary: Mechanically exfoliated two-dimensional alpha-In2Se3 flakes are used as channel material in field effect transistors, showing good conductivity and visible light response.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)