Davi Camargo

Centro Nacional de Pesquisa em Energia e Materiais | CNPEM

Recent progress in synthesizing and integrating surface‐supported metal‐organic frameworks (SURMOFs) has highlighted their potential in developing hybrid electronic devices with exceptional mechanical flexibility, film processability, and cost‐effectiveness. However, the low electrical conductivity of SURMOFs has limited their use in devices. To ad...

The miniaturization of electronic devices highlights the need for robust low‐κ materials as an alternative to prevent losses in the performance of integrated circuits. For it, surface‐supported metal‐organic frameworks (SURMOFs), a class of porous‐hybrid materials, may cover such a demand. However, the high‐intrinsic porosity makes determining the...

We report real-space near-field images of mid-infrared (IR) surface plasmon-polariton (SPP) waves in the insulating/metal/insulating (IMI) heterostructure: hexagonal boron nitride/gold/silicon dioxide (hBN/Au/SiO 2 ). The SPPs are observed in the 750 – 1500 cm ⁻¹ (~13.3 – ~6.7 μm) range, feature micrometer-sized wavelengths and propagation lengths...

Achieving synergy between electrochemistry and microelectronics is a hard‐hitting task. In article number 2101518, Carlos C. Bof Bufon and co‐workers employ rolling‐origami nanotechnology to build up novel organic electrochemical transistors (OECTs) featuring outstanding performance. The findings also anticipate that rolling‐origami OECTs are enorm...

The investigation of enhanced Raman signal effects and the preparation of high-quality, reliable surface-enhanced Raman scattering (SERS) substrates is still a hot topic in the SERS field. Herein, we report an effect based on the shape-induced enhanced Raman scattering (SIERS) to improve the action of gold nanorods (AuNRs) as a SERS substrate. Scat...

The advances of surface‐supported metal‐organic framework (SURMOF) thin‐film synthesis have provided a novel strategy for effectively integrating metal‐organic framework (MOF) structures into electronic devices. The considerable potential of SURMOFs for electronics results from their low cost, high versatility, and good mechanical flexibility. Here...

PDF available online (https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fadma.202101518&file=adma202101518-sup-0001-SuppMat.pdf)

Organic electrochemical transistors (OECTs) are technologically relevant devices presenting high susceptibility to physical stimulus, chemical functionalization, and shape changes—jointly to versatility and low production costs. The OECT capability of liquid-gating addresses both electrochemical sensing and signal amplification within a single inte...

In this study, a novel label-free electrochemical biosensor based on the zeolitic imidazole framework (ZIF-8) was developed for monitoring protein-protein interactions (PPIs). ZIF-8 was deposited on interdigitated electrodes and employed as a transducing material and simultaneously carried the thioredoxin-1 (Trx-1) protein, followed by the depositi...

Supporting Information for "Ambipolar Resistive Switching in an Ultrathin Surface-Supported Metal-Organic Framework Vertical Heterojunction".

Inside Back Cover - C. Sergi Lopes, L. Merces, R. F. de Oliveira, D. H. S. de Camargo, C. C. Bof Bufon. Nanoscale, 2020, 12, 10001-10009 (doi: 10.1039/C9NR10601D)

The investigation of the charge transport mechanism across disordered conducting and semiconducting materials are of relevance considering the applications on modern organic and hybrid electronics. The transition from bulk to nm-thick layers may lead to unexpected physical/chemical properties since the device’s interfaces do influence the overall c...

Supporting Information for Pozzoli, G. L. et al. ACS Appl. Nano Mater. 2020, 3, 3, 3060-3070 (DOI: 10.1021/acsanm.0c00523).

Organic diodes and molecular rectifiers are fundamental electronic devices that share one common feature: current rectification ability. Since both present distinct spatial dimensions and working principles, the rectification of organic diodes is usually achieved by interface engineering, while the molecular rectifiers’ features are commonly contro...

Organic diodes and molecular rectifiers are fundamental electronic devices that share one common feature: current rectification ability. Since both present distinct spatial dimensions and working principles, the rectification of organic diodes is usually achieved by interface engineering, while changes in molecular structures commonly control the m...

The effective utilization of vertical organic transistors in high current density applications demands further reduction of channel length (given by the thickness of the organic semi-conducting layer and typically reported in the 100 nm range) along with the optimization of the source electrode structure. Here we present a viable solution by applyi...

Memristors (MRs) are considered promising devices with enormous potential to replace Complementary Metal-Oxide-Semiconductor (CMOS) technology, which approaches the scale limit. Efforts to fabricate MRs-based hybrid materials may result in suitable operating parameters coupled to high mechanical flexibility and low-cost. Metal-Organic Frameworks (M...

Organic thin-film transistors (OTFTs) are an ever-growing subject of research, powering recent technologies such as flexible and wearable electronics. Currently, many studies are being carried out to push forward the state-of-the-art OTFT technology to achieve characteristics such as high carrier mobility, low power consumption, flexibility, the ab...

Manuscript: Single-Electron Charging Effects in Hybrid Organic/Inorganic Nanomembrane-Based Junctions, pages 12131-12572

The controllable transfer of a single electron in devices (SEDs) is one of the viable trends for a new generation of technology. For this purpose, fundamental studies and numerous applications on the manipulation of individual charge carriers in different nanostructures have been carried out. However, novel applications demand innovative strategies...

Manuscript: Long-Range Coherent Tunneling in Physisorbed Molecular Ensembles, pages 16673–16681

The charge transport in molecular systems is governed by a series of carrier-molecule quantum interactions, which result in a broad set of chemical and physical phenomena. The precise control of such phenomena is one of the main challenges towards the development of novel device concepts. In molecular systems, direct tunneling across 1-10 nm barrie...

Supporting Information for Merces, L. et al. J. Phys. Chem. C. 2017, 121, 31, 16673-16681 (DOI: 10.1021/acs.jpcc.7b02528).

Ethanol is a biofuel used worldwide. However, the presence of excessive water either during the distillation process or by fraudulent adulteration is a major concern in the use of ethanol fuel. High water levels may cause engine malfunction, in addition to being considered illegal. Here, we describe the development of a simple, fast and accurate pl...

The combination of organic and inorganic materials to create hybrid nanostructures is an effective approach to develop label-free platforms for biosensing as well as to overcome eventual leakage current-related problems in capacitive sensors operating in liquid. In this work, we combine an ultra-thin high-k dielectric layer (Al2O3) with a nanostruc...