XTL sintyron  PBN Ceramic Products OLED Crucible For Main Vessel Of OLED Effusion Cell

Product Instruction

Pyrolytic Boron Nitride OLED crucible is a specialized container made of pyrolytic boron nitride, which is primarily

designed for use in the Organic Light-Emitting Diode (OLED) manufacturing process. It serves as a crucial component

in the evaporation or sublimation systems that are used to deposit organic materials onto substrates to form the

various layers of an OLED device.

Item	Unit
Apparent Density	g/cm3	2.15-2.19
Gas permeability(He)	cm3/s	<1*10-10
Micro hardness(Knoop)	N/mm2	691.88(a-b plane)
Tensile strength	N/mm2	153.86(parallel)
Bending strength	N/mm2	243.63(parallel)	197.76(parallel)
Modulus of elasticity	N/mm2	235690
Specific heat capacity	Cal/g.℃	0.371(@ 200℃)	0.442(@ 900℃)
Thermal conductivity 200℃	W/cm.k	0.6(parallel)	0.026(perpendicular)
Thermal conductivity 900℃	W/cm.k	0.4370(parallel)	0.028(perpendicular)
Dielectric Strength(RT)	KV/mm	56
Volume Resistivity	Cm	3.11*1011

Properties

• High Temperature Resistance: PBN OLED crucibles can withstand high temperatures, typically up to 1800°C

or even higher. This is essential in the OLED manufacturing process as the organic materials often need to be heated

to elevated temperatures for evaporation or sublimation to occur. The crucibles can maintain their structural integrity

and performance under such extreme heat, ensuring the stability of the process.

• Excellent Chemical Inertness: They exhibit remarkable chemical stability and are highly resistant to the corrosive

effects of organic materials and other chemicals used in the OLED production. This property prevents any unwanted

chemical reactions between the crucible and the materials, safeguarding the purity and quality of the organic layers

being deposited. As a result, the OLED devices fabricated using PBN crucibles have better performance and reliability.

• Low Outgassing: PBN materials have low outgassing characteristics. In the vacuum environment of OLED

manufacturing equipment, this is of great significance. It minimizes the release of gases and impurities from

the crucible, which could otherwise contaminate the organic layers and affect the performance of the OLED

devices. This helps to achieve high-quality depositions with low defect densities.

• Good Thermal Conductivity: These crucibles possess good thermal conductivity, which enables efficient

and uniform heat transfer. In the OLED manufacturing process, this ensures that the organic materials inside

the crucible are heated evenly, leading to a more uniform evaporation or sublimation rate. Consequently, the

organic layers deposited on the substrates have better thickness uniformity and quality, resulting in improved

OLED device performance.

• High Purity: PBN OLED crucibles are usually made with high-purity materials, often with a purity level

exceeding 99.99%. The high purity is critical as it reduces the introduction of impurities into the OLED

manufacturing process. This is essential for achieving the desired electrical and optical properties of the

OLED devices, such as high luminous efficiency, low power consumption, and long lifespan.

Manufacturing Process

• Chemical Vapor Deposition (CVD): The production of PBN OLED crucibles mainly adopts the CVD

process. In this method, gaseous precursors such as boron trichloride (BCl₃) and ammonia (NH₃)

are introduced into a reaction chamber. Under precisely controlled high-temperature and low-pressure

conditions, a chemical reaction occurs, leading to the deposition of boron nitride on a pre-shaped

substrate or mold. This process allows for precise control over the thickness and quality of the PBN

layer, ensuring the uniformity and reliability of the crucible.

• Precision Machining: After the CVD deposition, the crucibles usually undergo precision machining.

This involves processes such as cutting, grinding, and polishing to achieve the required dimensions

and surface finish. The precise machining is crucial to ensure that the crucibles fit accurately into the

OLED manufacturing equipment and provide an optimal surface for the evaporation or sublimation

of organic materials.

Applications in OLED Manufacturing

• Material Evaporation and Sublimation: In OLED production lines, PBN OLED crucibles are used to hold

and heat organic materials. When heated, the organic materials in the crucibles evaporate or sublime and

then deposit onto the substrates to form the emissive and other functional layers of the OLED devices. The

precise control of the evaporation or sublimation process enabled by PBN crucibles is vital for achieving the

desired layer thicknesses and compositions, which directly affect the performance of the OLEDs.

Research and Development: In the research and development of new OLED materials and device structures,

PBN OLED crucibles play an important role. They provide a reliable and repeatable platform for studying the

evaporation and deposition behaviors of different organic materials, as well as for optimizing the manufacturing

process parameters. This helps in the development of more efficient and stable OLED materials and devices.

Advantages in OLED Manufacturing

• Improved Device Performance: The use of PBN OLED crucibles helps to improve the overall

performance of OLED devices. The uniform heat distribution and low outgassing characteristics

of the crucibles contribute to the formation of high-quality organic layers with excellent uniformity

and purity. This results in OLEDs with better luminous efficiency, color accuracy, and contrast ratios.

• Enhanced Process Stability: PBN crucibles offer excellent stability in the OLED manufacturing

process. Their high temperature resistance and chemical inertness allow them to withstand the

harsh processing conditions without degrading or reacting with the materials. This leads to more

consistent and reliable production, reducing process variations and improving the yield of high

quality OLED devices.

• Long Service Life: Due to their high mechanical strength and excellent resistance to thermal

and chemical stresses, PBN OLED crucibles have a relatively long service life. They can be used

repeatedly in the OLED manufacturing process, reducing the need for frequent replacements.

This not only saves costs but also improves production efficiency by minimizing downtime

for crucible changes.

Product details

 

Conclusion

• PBN Crucibles are ideal for high-purity, high-temperature applications in industries like semiconductors,

optoelectronics, and aerospace, where chemical inertness and thermal stability are critical.

• Alumina Crucibles are more suitable for general-purpose applications in metallurgy, ceramics, and

laboratory settings, where cost and mechanical strength are more important than extreme purity and thermal

performance.Choosing between the two depends on the specific requirements of your application, including

temperature, chemical environment, purity, and budget.

The higher cost of PBN crucibles is justified by their superior material properties, complex manufacturing process,

and suitability for high-performance applications. In contrast, alumina crucibles are more affordable due to their

simpler production process and broader, less demanding applications. For industries requiring extreme purity,

thermal stability, and chemical resistance, PBN crucibles are often the only viable option despite their higher price 

Why choose us

    Liling Xingtailong Special Ceramic Co., Ltd Founded in 1997, is an independent R&D and manufacturing enterprise integrating

scientific research and production. "Superior quality, preferential price" is our business purpose. The company mainly produces

PBN and BN products. Over the years, the company has been deeply involved in development, and has successively obtained

(ISO9001, Alibaba's ten-year-old high-quality supplier, China Manufacturing Network certified supplier, high-tech enterprise

certification, gold product enterprise certification, ceramic industry AAA credit unit，product ROHS testing certification, and

6 invention patents.      The company has always adhered to the goal of quality survival, innovative development, honest brand,

and meticulous and thoughtful after-sales service. Region, product quality and service are highly recognized by customers.  

Striving to be Stronger, hard work and progress. The company initiates a professional responsible person model, continuously

improves and innovates, and strives to provide each customer with better and more efficient services.   With strong strength,

reasonable price and professional service, We has established long-term cooperative relations with large enterprises at home

and abroad. "Excellent quality, preferential price" is our business purpose.   We sincerely look forward to cooperating with more

domestic and foreign customers and developing together.

Customer feedback

FAQ

 

FAQ

Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer. 
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t

have a drawing, just tell us your idea, we will work out the drawing for you.

What's the delivery time?
* 7 working days for standard products 30 days for customized products. 
What is the MOQ?
* No limit to the quantity. We can offer the best proposal and solutions according to your condition.
What is the payment terms you accept?
* T/T,LC,Western Union,moneygram are acceptable.
How to deal with the faulty?
* Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.