P-Type Boron Doped Diamond Wafers Single Crystal CVD Diamond Bdd for Power Device Applications 1e17-1e20

Product Description

 P-Type Boron Doped Diamond Wafers Single crystal cvd diamond BDD for Power Device Applications 1E17-1E20


Characteristics of CVD Single-Crystal Boron-Doped Diamond (SC-BDD)

The defining feature is the introduction of boron atoms into the diamond lattice during Chemical Vapor Deposition, substituting for carbon atoms. This imparts unique properties:

1. Tunable p-Type Semiconductor

• Mechanism: Boron acts as an acceptor impurity, creating a shallow energy level (~0.37 eV above the valence band). It provides hole charge carriers, making it a p-type semiconductor.

• Wide Resistivity Range: By controlling the boron doping concentration ([B]), the electrical resistivity can be precisely tuned over many orders of magnitude-from semi-insulating  to metallic-like conductive.

2. Exceptional Electrochemical Properties

• Wide Electrochemical Potential Window: In aqueous solutions, SC-BDD electrodes exhibit an extremely wide potential window (~3.5 V), far surpassing conventional electrodes like platinum or glassy carbon. This allows for the detection or generation of species that are inaccessible with other materials.

• Low Background Current & High Stability: It has a very low capacitive current and is highly inert, resisting surface oxidation, fouling, and corrosion even under harsh electrochemical conditions.

3. Retention of Diamond's Intrinsic "Extreme" Properties

Despite doping, it retains the core advantages of single-crystal diamond:

• Highest Thermal Conductivity (enabling superb heat dissipation).

• Extreme Hardness & Wear Resistance.

• Outstanding Chemical Inertness (resistant to strong acids/bases).

• Superior Biocompatibility.

• High Radiation Hardness.

• High Carrier Mobility.

4. Low Surface States and Adsorption

The hydrogen-terminated or oxygen-terminated surface is chemically stable with low surface state density, making it an ideal, stable platform for sensing.

 

Primary Applications

The applications leverage the synergy of its novel conductivity with diamond's native extreme properties.

1. Electrochemistry & Environmental (Flagship Applications)

• Advanced Electrochemical Oxidation: Used as the anode material for wastewater treatment. It generates powerful hydroxyl radicals (•OH) to efficiently mineralize persistent organic pollutants (pharmaceuticals, pesticides, dyes) with negligible electrode erosion.

• High-Performance Electrochemical Sensing: Excellent for simultaneous detection of biomolecules (dopamine, uric acid, ascorbic acid) and heavy metal ions due to its wide window separating overlapping signals. Used in neurochemical and environmental monitoring.

• Electrosynthesis: For synthesizing high-value oxidants like ozone or hydrogen peroxide with high Faradaic efficiency and purity.

• Electrochemical Energy Storage: As an electrode material for supercapacitors or specialized batteries, offering long cycle life and stability.

2. High-Power/High-Temperature Electronics

• Power Devices: As the p-type layer in diamond-based Schottky diodes, junction field-effect transistors, and high-voltage switches. Operable at temperatures > 500°C and in high-radiation environments (aerospace, nuclear, downhole drilling).

• Monolithic Thermal-Electrical Substrates: Heavily doped BDD can serve as both an ultra-high thermal conductivity heat spreader and a conductive interconnect or electrode, enabling integrated thermal and electrical management for RF amplifiers and high-power chips.

3. Sensors for Extreme Environments

• High-Temperature Sensors: Its temperature-dependent resistivity is used for robust thermometry in engines, reactors, and turbines.

• Radiation Detectors: As a p-type contact layer in alpha, beta, X-ray, and neutron detectors, benefiting from diamond's radiation hardness and fast response.

• Biochemical Sensors: Platform for label-free, implantable, or in-vitro biosensors due to biocompatibility and stable electrochemical interface.

4. Advanced Tools & Electrodes

• Micro-Electrical Discharge Machining (µ-EDM) Electrodes: Its wear resistance ensures high precision and long tool life for micromachining.

• Low-Wear Electrical Contacts: For sliding contacts in extreme environments where reliability is critical.

 

MONO/SINGLE CRYSTALLINE

 
Size:- 1X 1 mm to 8 X 8 mm,10-12mm
Thickness:- 0.3mm to 3mm
 
Grade and application
 

• Industry (for Mechanical applications, Making Wheel Dresser,die Blank,etc.)
• Electronic (for Quantum optics, radiation detector, etc.)
• Optical(for precision tools, window, anvil, sensor, etc.)
• Thermal/Mechanical (for conventional tools)

Surface

• As Grown or Laser Cut
• Polished (Ra< 1nm, Flatness < 1 fringes @ 633nm)
• Lapped (Ra< 200nm, Flatness < 1 fringes @ 633nm)

Type/Orientation

• Top (100), Customized for Scalpels (based on 2 and 4 point configuration)
• Customized shapes (based on given designs)

Edges

• Laser cut and  both polished 

Size of CVD diamond plates: 

1*1*1mm , 2*2*1mm , 3*3*1mm , 4*4*1mm , 5*5*1mm , 6*6*1mm,
7*7*1mm , 8*8*1mm ,9*9*1mm ,10*10*1mm ,11*11*1mm ,12*12*1mm
 

Thickness of diamond plates:from 0.1mm to 3mm 
Customized shape and size are available!
 
Application
a, cutting tools for non-ferrous and non-metallic materials.
b, dressers for wheel dressing
c, a variety of speciallity knives
d,  burnishing tools, cutting tools
e, wear parts
f, wire drawing dies
g, optical window




 

HPHT DIAMOND PLATE:

1,Size of diamond plates: 

2.0x2.0 x1.1mm, 2.5x2.5x1.1mm, 3.0x3.0x1.1mm, 3.5x3.5x1.1mm,

4.0x4.0x1.1mm, 4.5x4.5x1.1mm, 5.0x5.0x1.1mm, 5.5x5.5x1.1mm etc

Thickness of diamond plates:from 1.1mm to 1.7mm 

Shape of diamond plates: Round shape, Square shape, rectangle,hexangle shapes etc
 

Customized shape and size are available!

 

Application

a, cutting tools for non-ferrous and non-metallic materials.
b, dressers for wheel dressing

c, a variety of speciallity knives

d,  burnishing tools

e, wear parts

f, wire drawing dies

g, seeds for cvd diamond
 

Advantages: 

1, produced by HPHT or CVD
2, high quality as natural diamond, hardness is Moh's 10, can pass diamond test pen.
3, white or yellow color, good transparency, high strengh, low impurity
4, different shape(round, square, cube), size and thickness(1.1mm to 1.7mm) are available.

2. Features for mono-crystal synthetic diamonds for sale
1. Regular and irregular square shape
2. High hardness and stength, great thermal stability
3. High impact resistance
4. Good diaphaneity

How to choose synthetic diamonds?

All available sizes of industrial synthetic  diamonds and their applications below.

1.Sythetic diamond grit :

16/18(D1180),18/20 (D1001),20/25 (D851),25/30 (D711),30/35 (D601),35/40 (D501)
40/45 (D425), 45/50 (D356), 50/60 (D301), 60/70 (D251),70/80 (D213), 80/100 (D181)
100/120 (D151),120/140 (D126),140/170 (D107),170/200 (D91),200/230 (D76)
230/270 (D64),270/325 (D54), 325/400 (D46) 

 

2. Large size synthetic diamond for tools, jewellery

crystals : 1mm to 5mm 

plates:  2.0 x 2.0 x 1.0mm,  2.5x2.5x1.0mm, 3.0x3.0x1.0mm, 3.5x3.5x1.0mm, 4.0x4.0x1.0mm, 4.5x4.5x1.0mm, 5.0x5.0x1.0mm, 5.5x5.5x1.0mm   
Different shapes (Round shape, Square shape, rectangle,sexangle shapes ) are available. 
 

3.RVD diamond crushing material:  

100/120 230/270
120/140 270/325
140/170 325/400
170/200 400/500
200/230 500/600  

 

4.Diamond micro powder: 

For polishing: 0-0.5,0-1,0.5-1,0.5-1.5,0-2, 1-2,1-3,2-4,2.5-5,3-6
For Lapping   ; 4-8, 5-10,6-12,8-16,10-20
For Grinding  : 12-22, 20-30,22-36, 36-54 

How to place order to us?

1.Please let me know what are the synthetic diamond used for? the most suitable size and grade diamond will recommend to you.

2.We provide small sample for your test.

3.If sample test succeed please inform us to arrange your needed goods.

4.Usually our synthetic diamond delivered by Express or air transport. If you have special requirement please let us know.

5.Delivery time usually 5-7 days after confirmation of deposit.

 

Application

 

Synthetic diamonds have a wide range of using methods, such like Saws , dressing tools, drilling tools,  electroplated tools, scraping tools, metal bond abrasive wheels, stone/ceramics/glass processing tools, mechanical pressing industry etc

If you have any needs of diamond or diamond correlates please do feel free to contact me for more details of the product you are interested in.