Heynova specialises in the production and sale of high-quality OLED intermediates. HPLC purity >99.9% (isomers <0.1%), metal impurities controlled to <0.1 ppm (ICP-MS detection), thermal decomposition temperature >250℃ (TGA), and solubility in chlorobenzene/toluene >150 mg/mL. Batch consistency is guaranteed with CV <0.5%, ensuring mass production yield >99%. Through material gene editing, mass production stability, and in-depth exploration of application scenarios, we are driving the OLED industry toward ultra-high definition, flexibility, and cost reduction. OLED intermediates serve as precursors for the production of key functional materials such as the emissive layer (EML) and hole/electron transport layers (HTL/ETL), with their properties directly determining the performance limits of OLED devices.
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By precisely controlling the connection method of conjugated units (such as aromatic rings and heterocycles) through intermediates, the range of π electron delocalisation can be adjusted to achieve full coverage of emission wavelengths from ultraviolet to near-infrared (e.g., the substitution position of the benzene ring in blue light intermediates must be strictly controlled to reduce exciton quenching). Introducing phosphorescent intermediates into heavy metal atoms (Ir, Pt) induces spin-orbit coupling, increasing the utilisation rate of singlet excitons from 25% to 100%. Currently, the external quantum efficiency (EQE) of mainstream red phosphorescent intermediates has reached over 30%.
The glass transition temperature (Tg) of transport layer materials (e.g., hole transport materials HTM) synthesised from intermediates is generally >150°C, enabling them to withstand the high temperatures of evaporation processes (150°C–300°C) and prevent short circuits caused by material softening during long-term operation. Additionally, intermediate modification techniques such as fluorination and silanisation can enhance the material's resistance to oxidation and water.
Electron transport intermediates (e.g., pyridine derivatives) enhance electron-withdrawing ability by introducing cyano groups, resulting in an optimized carrier mobility of 10⁻⁴ cm²/V·s. This balances with the hole transport layer (10⁻³ cm²/V·s), reducing carrier recombination losses.
Through molecular design and material synthesis, develop intermediate materials with higher luminous efficiency to achieve higher brightness and lower energy consumption in OLED displays; strengthen research on material stability to develop intermediate materials with longer service life, thereby extending the overall lifespan of OLED products; OLED intermediates based on new materials such as organosilicon and polymers are continuously emerging, offering not only higher performance but also further cost reductions.
Explosive growth in automotive displays: Automotive OLED intermediates must meet wide temperature range stability (-40°C to 125°C), vibration resistance (5G acceleration), and UV aging resistance (>500 hours). By 2030, global demand for automotive OLED panels is projected to reach 120 million units, driving the intermediate market size to exceed 3 billion USD.
Breakthroughs in AR/VR display technology: High refractive index intermediates (n > 1.8) combined with nanoimprint technology have increased light extraction efficiency from 30% to 60%, enabling low-power displays at 5,000 nits brightness.
Flexible displays and large-size applications: The development of new display technologies such as flexible OLED and micro-LED has led to increasing demand for new intermediate materials.
With the widespread application of OLED in smartphones, televisions, wearable devices, automotive interiors, and smart home devices, the market demand for OLED intermediate materials will continue to grow.
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