Option Photoelectrochemistry
Perform localized photoelectrochemical measurements with controlled droplet contact and integrated optical fiber illumination, for spatially resolved analysis of light-driven electrochemical processes.
Complete SDC Platform
The photoelectrochemistry option extends the Scanning Droplet Cell (SDC) technique by integrating a fiber-based light delivery system into the SDC head. A light fiber is inserted into the central channel of the SDC body, guiding illumination directly to the electrolyte–sample interface at the SDC tip.
This configuration enables localized photoelectrochemical measurements under well-defined electrolyte contact conditions. The sample remains in air and is contacted with the SDC head only at the measurement point by a small electrolyte volume, while illumination is applied locally through the fiber.
The light intensity can be adjusted to match typical experimental conditions and calibrated at the tip using an appropriate power sensor. Both continuous and chopped illumination can be applied, allowing electrochemical measurements under defined light modulation conditions.
This approach allows spatially resolved investigation of light-driven electrochemical processes, with controlled illumination and fresh electrolyte conditions at each measurement point.
Key Features
- Localized illumination at the measurement point: Optical fiber delivers light directly to the droplet–sample interface, ensuring defined illumination of the electrochemically active area.
- Combined electrochemical and light control: Enables synchronized electrochemical measurements under controlled light conditions, including continuous and chopped illumination modes.
- Defined electrolyte contact with spatial resolution: Miniaturized electrolyte volume confines the measurement area, allowing spatially resolved photoelectrochemical characterization across heterogeneous surfaces.
- Fresh electrolyte at each measurement position: Automated droplet renewal ensures reproducible conditions and avoids cross-contamination between measurement points.
Need a complete solution for photoelectrochemistry with SDC?
The Option Photoelectrochemistry is designed for researchers who want the flexibility to integrate their own light source. It provides the optical fiber required to couple external illumination into the SDC head, enabling automated photoelectrochemical measurements with your preferred light source.
If you are looking for a complete, ready-to-use solution, we recommend the SDC Photoelectrochemistry Set, which includes the optical fiber, a visible-light source and a light sensor for immediate photoelectrochemical measurements.
Technical Specifications
Option Photoelectrochemistry
Photoelectrochemistry Set
Scanning Droplet Cell (SDC)
The Scanning Droplet Cell (SDC) enables localized electrochemical measurements on large or complex substrates without full sample immersion by forming a confined miniaturized measuring cell in contact with the sample surface. The system is compatible with all SECM configurations but profits from an extended travel range.
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Option Video
The video macro system enables visual control of the sample alignment and probe positioning. It includes a manual zoom objective (1:0.7-4.5) with monochrome USB CCD camera, mounted on an independent stand for live view of the tip-sample interface.
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Sensolytics Base SECM
The complete scanning electrochemical microscopy (SECM) system providing high-resolution XYZ positioning, and intuitive software control for spatially resolved electrochemical measurements.
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Pseudo-reference electrode
The chloridized silver wire element is specifically designed to fit the Scanning Droplet Cell body with an included frit to form an electrode of the second kind. Furthermore, it is applicable as a pseudo-reference electrode for different applications. In addition, reference electrodes can be tailored to your specific needs. Please do not hesitate to contact us for an individual solution.
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SDC Heads
Upgrade your SDC cell for experiments in aggressive chemical environments with our specifically designed PEEK probe. It is fully adaptable to fit the reference and counter electrodes, as well as the optional light fiber, just like the standard PMMA probe.
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Positioning Joystick
Enhance your setup with our 3-axis joystick, designed to provide convenient, precise manual control over long travel ranges during the prepositioning phase.
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Standard Sample Holder
The standard SDC sample holder is designed for flat substrates. It incorporates two flexible arms with electrical contacts for sample polarization and features an integrated waste jar for convenient electrolyte collection.
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XL Sample Holder
Designed for larger substrates, the XL SDC sample holder (175 x 175 x 25 mm) is manufactured from PEEK to ensure robust performance and chemical compatibility in aggressive environments. Like the standard sample holder, it incorporates two flexible arms with electrical contacts and an integrated waste jar.
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Accessories Holder
Keep your workspace tidy and your components safe with our probe and accessories holder. This organizer is specifically designed to securely house your ready-to-use SDC probe, different tips, and necessary tools right at your fingertips.
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Picoplot Dispender
Piezoelectric dispensing system for precise deposition of picoliter droplets, enabling preparation of material libraries, combinatorial samples, and controlled placement of functional solutions.
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Spray Coater
Thin-film deposition system for controlled and uniform coatings. It allows reproducible preparation of functional layers, catalysts, or model surfaces for electrochemical and materials research.
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Faraday Cages
Built from robust varnished steel and optimized for Sensolytics SECM and SDC systems, our Faraday Cages are designed to ensure low-noise measurement conditions for high-sensitivity electrochemical experiments, maintaining convenient access for cables and instrumentation.
Explore →Not sure which SDC configuration is right for your research?
Contact us to discuss your application, experimental conditions, and configuration requirements. We support system selection and customization based on your individual requirements and future upgrades.
Frequently Asked Questions
The illumination in the SDC photoelectrochemical option is guided through an optical fiber integrated into the central channel of the SDC head. The light is delivered directly to the electrolyte-sample interface at the tip, ensuring localized illumination of the electrochemically active area.
Yes. The system supports both continuous and chopped illumination. Illumination sequences are fully controlled within the SDC software and can be synchronized with electrochemical measurements and integrated into user-defined routines for automated experiments.
No. The spatial resolution is defined by the electrolyte contact area of the SDC tip. The illumination is confined to this same region via the optical fiber, which allows for localized photoelectrochemical measurement.
Yes. Photoelectrochemical experiments follow the same measurement workflow as standard SDC experiments, with the addition of controlled illumination sequences integrated into the experimental routine.
Yes. The SDC module can be added as an upgrade to existing Sensolytics SECM systems. The SDC head is compatible with the standard SECM tip holder. Contact us for more information and discuss how to integrate the SDC module into your existing SECM system.
