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HOPG Substrates – Highly Ordered Pyrolytic Graphite


Introduction

HOPG – Highly Ordered Pyrolytic Graphite is a very pure and highly ordered form of synthetic graphite. It is characterised by by the mosaic spread angle.  HOPG is a laminar material and consists of layered polycrystals resembling a mosaic of monocrystals grains which are slightly disorientated with respect to each other. The size of the individual crystals varies from 1-10um. A lower mosaic spread angle represents a better alignment of the graphite crystals. The best HOPG samples have a mosaic spread value of less than 1 degree. The freshly cleaved HOPG substrates provides atomically flat areas which are used as a specimen substrate and for magnification calibration in scanning probe microscopy techniques (AFM, SPM, STM). Similar to mica,  fresh surfaces can be made by cleaving the samples.
HOPG is made by annealing graphite under pressure at temperatures over 3000°C. This conductive material is stable up to 2000°C.°
Available in three qualities with 0.4, 0.8 and 3.5 degrees mosaic spread. Sample size is 10x10mm and thickness is 1 or 2 mm. The samples are all double sided which means that the full thickness can be used and they can be cleaved from both sides.

HOPG  grade specifications

Grade

ZYA

ZYB

ZYH

Product #

10-008311 / 10-008322

10-008333

10-008341 / 10-008342

Mosaic Spread

0.4°

0.8°

3.5°

Accuracy

0.1°

0.2°

1.5°

Sides

Double

Thickness

1 or 2mm

1mm

1 or 2mm

Chip size

10 x 10mm

Application

SPM, STM, AFM, X-ray



Ordering information for the HOPG- Highly Oriented Pyrolytic Graphite samples

*Prices are without tax. Tax might be added in cart.

ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 1mm chip ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 1mm chip
Product # Unit Price* Add to Quote / Cart
10-008311 ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 1mm chip
Qty:

each €468,00

ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 1mm chip ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 2mm chip
Product # Unit Price* Add to Quote / Cart
10-008322 ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 2mm chip
Qty:

each €700,00

ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 1mm chip ZYB grade HOPG, 0.8°mosaic spread, double sided, 10 x10 x 1mm chip
Product # Unit Price* Add to Quote / Cart
10-008333 ZYB grade HOPG, 0.8°mosaic spread, double sided, 10 x10 x 1mm chip
Qty:

each €120,00

ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 1mm chip ZYH grade HOPG, 3.5°mosaic spread, double sided, 10 x10 x 1mm chip
Product # Unit Price* Add to Quote / Cart
10-008341 ZYH grade HOPG, 3.5°mosaic spread, double sided, 10 x10 x 1mm chip
Qty:

each €60,00
10-008341-5 ZYH grade HOPG, 3.5°mosaic spread, double sided, 10 x10 x 1mm chip
Qty:

pkg/5 €240,00

ZYA grade HOPG, 0.4°mosaic spread, double sided, 10 x10 x 1mm chip ZYH grade HOPG, 3.5°mosaic spread, double sided, 10 x10 x 2mm chip
Product # Unit Price* Add to Quote / Cart
10-008342 ZYH grade HOPG, 3.5°mosaic spread, double sided, 10 x10 x 2mm chip
Qty:

each €85,00
10-008342-5 ZYH grade HOPG, 3.5°mosaic spread, double sided, 10 x10 x 2mm chip
Qty:

pkg/5 €360,00

 





SEM Supplies

TEM Supplies

Calibration

Sample Preparation

AFM / SPM

  SEM Sample Stubs
  Carbon tabs
  Sample Stub Adapters
  SEM Stage Adapters
  SEM Sample Holders
  SEM Preparation Stands
  Filaments/Cathodes
  Silicon Finder Grid
  Gatan 3View Pins
  FEI Volumescope Pins
  SEM Stub Storage Boxes
  Phenom Supplies
  JEOL NeoScope Supplies
  Hitachi TM series Supplies
  Field & lab sampler kits

Instruments


  Acoustic Enclosures
  Critical Point Dryers
  Cressington SEM Coaters
  HI-Res IR Chamberscope
  TEM Sample Prep
  TEM Grids
  TEM Support Films
  Silicon Nitride Films
  K-Kit wet cell holder
  Graphene Films
  Grid Storage Boxes
  Cryo Grid Box
  TEM sample staining
  Filaments/Cathodes
  Cryo Pin for U-M
  Eyelash manipulators

FIB Supplies


  FIB Lift-out grids
  FIB low profile stubs
  FIB grid holders
  FIB pre-tilt holders
  FIB Grid Boxes
  SEM / FIB Magn. Calib.
  SEM Res. Test Spec.
  EDS / WDS Calibration
  TEM Calibration
  AFM / SPM Calibration
  LM Magn. Calibration

Vacuum Supplies


  Bullseye Vacuum Gauges
  D215V Vacuum Controller
  D801W Vacuum Gauges
  Quick-check Gauges
  KF/NW Vacuum Parts
  Vacuum oil and grease
  Vacuum sample storage
  Evaporation baskets
  Quartz QCM Crystals
  Sputter Targets
  Carbon Rods & Fibers
  Quartz QCM Crystals
  Supports & Substrates
  SEM Preparation Stands
  Tweezers
  Probes & Picks
  Cryo Jug & Container
  OCT cryo compound
  Applicators & Swabs
  Plastic Transfer Pipettes
  Cutting Tools / Scissors
  Conductive Paint/Cement
  Conductive Tapes &Tabs
  Non-conductive Adhesives
  Stainless Steel Mesh
  Sample Storage
  Tools
  Preparation mats & tiles
  Cleaning / Gloves
  Diamond Polishing Paste
  AFM/SPM Discs
  AFM/SPM Disc Pick-up Tool
  AFM/SPM Holders
  AFM/SPM Disc Storage
  Cantilever Tweezers
  AFM/SPM Discs Tweezers
  Mica Discs
  HOPG Substrates


LM


  Correlative Cover Slips
  Glass Microscope Slides
  Glass Cover Slips
  Quartz Microscope Slides
  Quartz Cover Slips
  Black metal slides
  Slide storage boxes
  Calibration
  Plastic Transfer Pipettes
  Optical Lens Tissue
  Glass Petri Dishes