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Non-covalent Methods of Engineering Optical Sensors Based on Single-Walled Carbon Nanotubes

Publications associées (47)

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Interface connection of functionalized carbon nanotubes for efficient and stable perovskite solar cells

Mohammad Khaja Nazeeruddin, Jianxing Xia, Ruiyuan Hu

The ionic defects of hetero-junction interfaces always attract and trap carriers via surface electrostatic forces, which are crucial for the efficiency and intrinsic stability of perovskite solar cells (PSCs). Herein, functionalized carbon nanotubes (CNTs) ...

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Photoluminescence brightening of single-walled carbon nanotubes through conjugation with graphene quantum dots

Ardemis Anoush Boghossian, Melania Reggente, Niloufar Sharif, Sayyed Hashem Sajjadi, Shang-Jung Wu

Spanning the tissue transparency window, the near-infrared (NIR) photoluminescence (PL) of single-walled carbon nanotubes (SWCNTs) can optically penetrate biological tissue for deep-tissue imaging and optical sensing. SWCNTs are often functionalized with s ...

2023

Colloidal quantum dot photodetectors with 10-ns response time and 80% quantum efficiency at 1,550 nm

Olivier Ouellette

Fast and sensitive infrared (IR) photodetection is of interest for depth imaging that is fundamental to machine vision, augmented reality, and autonomous driving. Colloidal quantum dots (CQDs) are appealing candidates for this goal: in contrast with III-V ...

ELSEVIER2021

Single-walled carbon nanotubes (SWCNTs) have garnered significant interest for their applications in optical biosensing. SWCNTs exhibit a sensitive and photostable fluorescence in the near-infrared (NIR) range, allowing for the continuous monitoring of tar ...

EPFL2021

The initial goal of this project was to determine by experimenting on a chip that where already design the ideal parameters for the dielectrophoresis of single walled carbon nanotubes. The epidemic blocking the access to the lab, the subject evolved to foc ...

2020

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Ammonia production at room temperature and atmospheric pressure is in high demand to assist in energy saving and the protection of the environment worldwide, as well as to help reduce CO2 emissions. Recently, plasmonic nanomaterials have been frequently us ...

2019

Templating colloidal sieves for tuning nanotube surface interactions and optical sensor responses

Ardemis Anoush Boghossian, Benjamin Paul Johanès Gabriel Lambert, Daniel Jerôme Siefman, Alice Judith Gillen, Shang-Jung Wu

Surfactants offer a tunable approach for modulating the exposed surface area of a nanoparticle. They further present a scalable and cost-effective means for suspending single-walled carbon nanotubes (SWCNTs), which have demonstrated practical use as fluore ...

2019

Cascaded amplifying circuits enable ultrasensitive cellular sensors for toxic metals

Sebastian Maerkl, Francesca Volpetti, Ekaterina Emilova Petrova

Cell-based biosensors have great potential to detect various toxic and pathogenic contaminants in aqueous environments. However, frequently they cannot meet practical requirements due to insufficient sensing performance. To address this issue, we investiga ...

NATURE PUBLISHING GROUP2019

The ability to detect protein biomarkers at a subnanomolar level represents a pervasive challenge in order to bring a significant improvement in early diagnosis or progression of pato-physiological processes. To this aim, Screen Printed Electrochemical Sen ...

SPRINGER-VERLAG SINGAPORE PTE LTD2018

Inefficient charge transfer and charge recombination are critical but challenging issues that restrict the power conversion efficiency (PCE) of quantum-dot-sensitized solar cells (QDSSCs). These issues must be addressed to boost the performance of QDSSCs. ...

Elsevier2017