623 citations · 4.3k across the 50 of their papers we have counts for
51 papers
Modular and Cost-effective Scanning Photocurrent Microscopy System for Sub-micron characterization of 2D optoelectronic devices
Nuria Jiménez-Arévalo, Dan Zheng, Yong Xie +8
Scanning photocurrent microscopy (SPCM) is a powerful technique for probing local optoelectronic phenomena in 2D semiconducting devices. However, commercial setups remain costly, c…
Strongly anisotropic strain-tunability of excitons in exfoliated ZrSe
Hao Li, Gabriel Sanchez-Santolino, Sergio Puebla +5
We study the effect of uniaxial strain on the band structure of ZrSe, a semiconducting material with a marked in-plane structural anisotropy. By using a modified 3-point bendin…
An automated system for strain engineering and straintronics of 2D materials
Onur Çakıroğlu, Joshua O. Island, Yong Xie +2
This work presents an automated three-point bending apparatus that can be used to study strain engineering and straintronics in two-dimensional materials. We benchmark the system b…
Broadband-tunable spectral response of perovskite-on-paper photodetectors using halide mixing
Alvaro J. Magdaleno, Riccardo Frisenda, Ferry Prins +1
Paper offers a low-cost and widely available substrate for electronics. It posses alternative characteristics to silicon, as it shows low density and high-flexibility, together wit…
In-plane anisotropic optical and mechanical properties of two-dimensional MoO
Sergio Puebla, Roberto D'Agosta, Gabriel Sanchez-Santolino +3
Molybdenum trioxide (MoO) in-plane anisotropy has increasingly attracted the attention of the scientific community in the last few years. Many of the observed in-plane anisotro…
Optical microscopy-based thickness estimation in thin GaSe flakes
Wenliang Zhang, Qinghua Zhao, Sergio Puebla +3
We have implemented three different optical methods to quantitatively assess the thickness of thin GaSe flakes transferred on both transparent substrates, like Gel-Film, or SiO2/Si…
Integrating superconducting van der Waals materials on paper substrates
Jon Azpeitia, Riccardo Frisenda, Martin Lee +6
Paper has the potential to dramatically reduce the cost of electronic components. In fact, paper is 10 000 times cheaper than crystalline silicon, motivating the research to integr…
Integrating van der Waals materials on paper substrates for electrical and optical applications
Wenliang Zhang, Qinghua Zhao, Carmen Munuera +12
Paper holds the promise to replace silicon substrates in applications like internet of things or disposable electronics that require ultra-low-cost electronic components and an env…
Biaxial versus uniaxial strain tuning of single-layer MoS
Felix Carrascoso, Riccardo Frisenda, Andres Castellanos-Gomez
Strain engineering has arisen as a powerful technique to tune the electronic and optical properties of two-dimensional semiconductors like molybdenum disulfide (MoS2). Although sev…
Drawing WS2 thermal sensors on paper substrates
Martin Lee, Ali Mazaheri, Herre S. J. van der Zant +2
Paper based thermoresistive sensors are fabricated by rubbing WS2 powder against a piece of standard copier paper, like the way a pencil is used to write on paper. The abrasion bet…
Naturally occurring van der Waals materials
Riccardo Frisenda, Yue Niu, Patricia Gant +2
The exfoliation of two naturally occurring van der Waals minerals, graphite and molybdenite, arouse an unprecedented level of interest by the scientific community and shaped a whol…
Superlattices based on van der Waals 2D materials
Yu Kyoung Ryu, Riccardo Frisenda, Andres Castellanos-Gomez
Two-dimensional (2D) materials exhibit a number of improved mechanical, optical, electronic properties compared to their bulk counterparts. The absence of dangling bonds in the cle…
Thickness identification of thin InSe by optical microscopy methods
Qinghua Zhao, Sergio Puebla, Wenliang Zhang +3
Indium selenide (InSe), as a novel van der Waals layered semiconductor, has attracted a large research interest thanks to its excellent optical and electrical properties in the ult…
Giant piezoresistive effect and strong band gap tunability in ultrathin InSe upon biaxial strain
Qinghua Zhao, Tao Wang, Riccardo Frisenda +1
The ultrathin nature and dangling bonds free surface of two-dimensional (2D) semiconductors allow for significant modifications of their band gap through strain engineering. Here,…
InSe Schottky diodes based on van der Waals contacts
Qinghua Zhao, Wanqi Jie, Tao Wang +2
Two-dimensional semiconductors are excellent candidates for next-generation electronics and optoelec-tronics thanks to their electrical properties and strong light-matter interacti…
The role of traps in the photocurrent generation mechanism in thin In-Se photodetectors
Qinghua Zhao, Wei Wang, Felix Carrascoso-Plana +4
Due to the excellent electrical transport properties and optoelectronic performance, thin indium selenide (InSe) has recently attracted attention in the field of 2D semiconducting…
Direct transformation of crystalline MoO into few-layers MoS
Felix Carrascoso, Gabriel Sanchez-Santolino, Chun-wei Hsu +9
We fabricate large-area atomically thin MoS layers through the direct transformation of crystalline molybdenum MoS (MoO) by sulfurization at relatively low temperatures…
Tunable Photodetectors via in situ Thermal Conversion of TiS to TiO
Foad Ghasemi, Riccardo Frisenda, Eduardo Flores +11
In two-dimensional materials research, oxidation is usually considered as a common source for the degradation of electronic and optoelectronic devices or even device failure. Howev…
A system to test 2D optoelectronic devices in high vacuum
Qinghua Zhao, Felix Carrascoso, Patricia Gant +3
The exploration of electronic and optoelectronic properties of two-dimensional (2D) materials has become one of the most attractive line of research since the isolation of graphene…
Strain engineering in single-, bi- and tri-layer MoS2, MoSe2, WS2 and WSe2
Felix Carrascoso, Hao Li, Riccardo Frisenda +1
Strain is a powerful tool to modify the optical properties of semiconducting transition metal dichalcogenides like MoS2, MoSe2, WS2 and WSe2. In this work we provide a thorough des…
Microheater actuators as a versatile platform for strain engineering in 2D materials
Yu Kyoung Ryu, Felix Carrascoso, Rubén López-Nebreda +3
We present microfabricated thermal actuators to engineer the biaxial strain in two-dimensional (2D) materials. These actuators are based on microheater circuits patterned onto the…
MoS-on-paper optoelectronics: drawing photodetectors with van der Waals semiconductors beyond graphite
Ali Mazaheri, Martin Lee, Herre S. J. van der Zant +2
We fabricate paper-supported semiconducting devices by rubbing a layered molybdenum disulfide (MoS2) crystal onto a piece of paper, similarly to the action of drawing/writing with…
InSe: a two-dimensional semiconductor with superior flexibility
Qinghua Zhao, Riccardo Frisenda, Tao Wang +1
Two-dimensional Indium Selenide (InSe) has attracted extensive attention recently due to its record-high charge carrier mobility and photoresponsivity in the fields of electronics…
A system for the deterministic transfer of 2D materials under inert environmental conditions
Patricia Gant, Felix Carrascoso, Qinghua Zhao +5
The isolation of air-sensitive two-dimensional (2D) materials and the race to achieve a better control of the interfaces in van der Waals heterostructures has pushed the scientific…