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Investigate light-stimulated gas-solid material dynamics inside a controlled TEM gas environment, combining optical access, pressure-controlled gas delivery, high-temperature heating, electrical biasing, and stable nanoscale imaging for photocatalysis and photochemical reaction studies.
Enclosed Optical Gas Heating Cell Inside the TEM
The Hummingbird Scientific TEM Optical Gas Heating Sample Holder enables in-situ TEM imaging of gas-solid reactions influenced by optical illumination, heating, gas composition, pressure, and electrical bias. The enclosed microchip gas cell supports atmospheric and elevated-pressure gas experiments up to 2 bar while maintaining microscope vacuum protection and stable nanoscale imaging.
Light-Stimulated Gas-Phase Reaction Workflows
A fiber optic feedthrough delivers light to samples mounted on SiN viewing membranes, enabling studies of heterogeneous photocatalysis, high-temperature photochemical reactions, growth and dissolution dynamics, light-assisted corrosion, and photo-sensitive thin films.
Engineered for Reproducible Setup
A precision-machined, screw-free chip loading mechanism provides self-aligning viewing windows and controlled compression for repeatable gas-cell assembly. Hummingbird gas delivery, heating, sample chips, and software support experiments that correlate structure, composition, temperature, gas chemistry, pressure, and optical stimulus in real time.
Hummingbird Advantages:
- Fiber optic and light-source options for flexible optical stimulation
- Low-drift sample rod for stable imaging without routine drift correction
- User-replaceable gas tubing for cleaning and experiment changeover
- Gas delivery options from single-channel operation to multi-channel mixing with purge capability
- Heating and gas delivery software for controlled, repeatable experiments
- In-stock and custom gas-cell TEM chips from Hummingbird in-house microfabrication
Technical Specs
1305 Series – Single-Channel Gas Delivery
1305 Series – Multi-Channel Gas Delivery
Pressure Range at Sample
1 to 2 bar
10⁻⁶ mbar to 2 bar
Experimental Gas Inlets
1 experimental gas line + 1 inert purge line
3–8 gas inlets, up to 1 vapor inlet
Purge Capability
Yes
Yes
Gas Analysis Capability
No
Yes, with residual gas analysis option
Biasing Contacts
4 contacts
4 contacts
Heating Temperature
>1000 °C
>1000 °C
EELS / EDS Compatible
Yes
Yes
Optical Access
Fiber optic feedthrough
Fiber optic feedthrough
Chip Architecture
Enclosed microchip gas heating cell
Enclosed microchip gas heating cell
Cell Assembly
Screw-free constant-compression chip loading
Screw-free constant-compression chip loading
Instrument Type
TEM
TEM
Available For:
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Built on Engineering Excellence
Hummingbird Scientific designs, machines, assembles, tests, and services its products in-house. Our integrated engineering, machining, in-house microfabrication, applications, and service teams support product development, custom modifications, and direct technical support throughout the life of the instrument.
The TEM Optical Gas Heating Sample Holder is a direct result of these capabilities, combining precision holder manufacturing, microfabricated gas-cell chips, control hardware, software, and application-specific workflow support for high-temperature, light-stimulated gas reactions inside the TEM.
Need something unique? Hummingbird engineers can customize existing products or develop specialized sample environments for emerging in-situ microscopy experiments.
Key Features and Capabilities
How it Works
Gas, heat, light, and bias inside the TEM
The holder combines a sealed microfluidic gas cell, microfabricated SiN chips, user-replaceable tubing, four electrical biasing leads, fiber optic access, heating chips, and gas/heating control hardware. A sample is loaded on a SiN membrane, sealed in the gas-cell tip, checked for integrity, and inserted into the TEM. Experimental gas is circulated through the cell using the single-channel or optional multi-channel delivery system. During imaging, users can apply optical illumination, temperature, bias, and changes in gas chemistry or pressure to connect atomic- and nanoscale dynamics with controlled reaction conditions.
High Impact Publications
Software
Spend less time managing equipment and more time generating results. Hummingbird Connect™ helps organize holder operation, microscope context, imaging workflows, and experiment metadata so gas-phase TEM data remains easier to reproduce and interpret.
Hummingbird Control™ provides intuitive control of closed-loop sample heating and gas delivery functions for optical gas-cell experiments. Together, these software tools support faster setup, controlled parameter changes, improved reproducibility, and more efficient gas-phase TEM workflows.
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Frequently Asked Questions
What is a TEM optical gas heating sample holder?
How does MEMS gas-cell heating compare with furnace heating?
What does the software do in an in-situ gas-phase TEM experiment?
Can EDS and EELS be performed with the TEM Optical Gas Heating Sample Holder?
How is gas flow controlled in the TEM Optical Gas Heating Sample Holder?
What kinds of light can be delivered to the sample?
TEM Optical Gas Heating import
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