Are the dominant carriers electrons or holes?
Room-temperature Hall
Performance Testing · Electrical & Electrochemical
Hall Effect Measurement (including Variable Temperature)
Determine carrier type, concentration, mobility and resistivity, with optional temperature dependence.
- Price
- from£90 per sample, excl. VAT
- Turnaround
- 6 working days Preparation and scope dependent
- Available platforms
- Lake Shore MeasureReady M91 FastHallsemishare X3
- Typical outputs
- Carrier type and concentrationMobilitySheet or bulk resistivityTemperature-dependent transport curves
Why this service
What Hall can help you understand
Hall measurement combines transverse voltage under magnetic field with resistance measurements. Reliable carrier parameters require appropriate sample geometry, ohmic contacts, thickness and a signal…
What are carrier concentration and mobility?
Variable-temperature Hall
How do transport properties change with temperature or processing?
Multi-sample transport comparison
Choose the scope
Start from the question, not the tool
The method, preparation route and reporting depth depend on what you need to decide.
Room-temperature Hall
Are the dominant carriers electrons or holes?
- Best used when
- Are the dominant carriers electrons or holes?
- Typical result
- Carrier type and concentration
- Preparation note
- Declare biological hazards and confirm fixation, dehydration, temperature and disposal requirements.
Variable-temperature Hall
What are carrier concentration and mobility?
- Best used when
- What are carrier concentration and mobility?
- Typical result
- Mobility
- Preparation note
- Confirm the applicable standard, dimensions, loading direction and number of replicates.
Multi-sample transport comparison
How do transport properties change with temperature or processing?
- Best used when
- How do transport properties change with temperature or processing?
- Typical result
- Sheet or bulk resistivity
- Preparation note
- Confirm power, connections, operating state, access restrictions and permitted disassembly.
Common outputs
A result package matched to the decision you need to make
Fields, conditions, processing and file formats are confirmed before work begins.
Carrier type and concentration reported with the agreed units, sample reference and measurement conditions.
Mobility supplied in a labelled format suitable for direct sample or condition comparison.
Sheet or bulk resistivity provided with the processing basis and quality checks agreed during technical review.
Temperature-dependent transport curves included when selected in the confirmed reporting scope.
Sample requirements
What to provide before work begins
Provide representative, clearly labelled samples and identify the decision, feature or comparison that matters.
| Suitable sample | Submission requirement | Planning note |
|---|---|---|
| Biological / soft material | Provide fixed, preserved or otherwise stabilised material in the agreed container and medium. | Declare biological hazards and confirm fixation, dehydration, temperature and disposal requirements. |
| Test coupon / specimen | Provide labelled specimens prepared to the agreed geometry, orientation and surface condition. | Confirm the applicable standard, dimensions, loading direction and number of replicates. |
| Device / assembly | Provide a complete labelled device or assembly with drawings, interfaces and operating limits. | Confirm power, connections, operating state, access restrictions and permitted disassembly. |
Objective: state the decision, comparison or acceptance criterion the work must support.
Handling and access: declare hazards, instability, confidentiality, file constraints or special logistics before dispatch or transfer.
Questions and answers
Common planning decisions
Short answers to issues that can change preparation, scope, timing or interpretation.
Can contacts be prepared by the laboratory?
Sometimes, but contact metallurgy and geometry are material-specific and must be reviewed separately.
What is the typical turnaround?
Typical turnaround is 6 working days after sample acceptance and method confirmation.
Configure the service
Send the information needed to scope Hall correctly
- Sample form, material, dimensions and quantity
- Feature or decision the result must address
- Required comparison, acceptance criterion or reference
- Preferred output and reporting depth