⚗️ p-Type Semiconductor

Boron-Doped Diamond

CVD diamond with controlled boron doping — from semi-insulating to metallic conductivity. The widest electrochemical window of any electrode material (3.5V). Used in neural implants, environmental sensors, power transistors, and superconducting quantum devices.

3.5 V
Electrochemical Window
10⁻³–10⁴
Resistivity (Ω·cm)
Custom
Doping Level
SCD / PCD
Crystal Form
Technical Specifications

Complete datasheet.

Electrochemical Window3.5 V (widest of any electrode)
Resistivity Range10⁻³ – 10⁴ Ω·cm
Carrier Typep-type (boron acceptors)
Crystal FormSCD (single crystal) or PCD (polycrystalline)
Boron Concentration Range10¹⁶ – 10²¹ cm⁻³
Surface FinishH-terminated or O-terminated
Background Noise5–10× lower than glassy carbon
BiocompatibilityISO 10993 compliant
Chemical InertnessStable in H₂SO₄, HNO₃, KOH, NaCl
Superconducting Tc~4 K (heavy doping >10²¹ cm⁻³)
Available FormatsPlates, wafers, films on substrates
CharacterizationHall effect, Raman, SIMS, CV

Doping Levels & Applications

All doping levels available to order. Specify [B] concentration or target resistivity when requesting a quote.

Grade[B] ConcentrationResistivityPrimary Applications
Light10¹⁶ – 10¹⁷ cm⁻³10² – 10⁴ Ω·cmQuantum device substrates, UV detectors
Moderate10¹⁷ – 10¹⁹ cm⁻³10⁻¹ – 10² Ω·cmBiosensors, neural interfaces, power transistors
Heavy10¹⁹ – 10²⁰ cm⁻³10⁻³ – 10⁻¹ Ω·cmElectrochemical electrodes, water treatment
Metallic>10²⁰ cm⁻³<10⁻³ Ω·cmSuperconducting devices, ohmic contacts
Use Cases

Where BDD excels.

🧠
Neural Implants & Implantable Sensors
BDD neural electrodes are biocompatible, chemically inert, and produce 5–10× lower background noise than platinum or iridium oxide. Ideal for cortical recording and deep brain stimulation.
🌊
Electrochemical Sensing
The 3.5V electrochemical window enables detection of heavy metals, pharmaceuticals, and environmental contaminants that no other electrode can measure without interference or decomposition.
💧
Water Treatment & Ozone Generation
BDD anodes generate hydroxyl radicals and ozone at high current densities for advanced oxidation of persistent organic pollutants — without electrode degradation over thousands of hours.
🔬
Quantum & Superconducting Devices
Heavily boron-doped diamond becomes superconducting below ~4 K. Used as a superconducting gate electrode in diamond-based qubit architectures and as a spin-qubit contact material.
What Ships With Your Order

Doping verified.
Electrically confirmed.

Boron doping is characterization-intensive. Every BDD piece ships with the data your device team needs to integrate it with confidence.

Hall effect measurement — carrier concentration and mobility at room temperature
4-probe resistivity measurement confirming target doping grade
Raman spectroscopy with boron-related phonon mode analysis
SIMS depth profile (on request) for absolute boron concentration
CV electrochemical window measurement in standard electrolyte
Certificate of Analysis with all measured properties and crystal form
Custom Doping Available

Tell us your target doping.

Specify resistivity, crystal form, geometry, and application. We'll recommend the right doping grade and quote within 24 hours.