大家好
器件製造
ITO-PEDOT：PSS（4000rpm）-EML（1000rpm）-Al（TE 80nm）
EML
CBP 10mg：甲苯1ml
CBP：Ir（ppy）4wt％
然而，我正在獲得流過製造的器件的非常高的電流。
EML膜也不那麼光滑。EML膜難以附著在腳趾上：pss。
使用PMMA添加甲苯。但效果與此一樣糟糕。
但是使用甲苯的濕法工藝的許多論文都是大約2000轉/分，並且是相當好的附件。不明白它們是如何做到的。
任何人都可以幫助我解決這些問題。
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I try another way.
ITO -PEDOT：PSS（4000rpm）- EML（x rpm）- BCP(5nm for TE)- Lif(1nm for TE)-Al（for TE 80nm)
x-(500 1000 1500 2000 rpm)
From the previous simple experimental architecture to the recent attempt to complex architecture.
The components are gradually stabilized from previous measurements using IV measurements only to measure slashes and current is too large.
Now the components glow.
But all of the edge of the light, the location is quite uneven, and the need for light up to 25 (voltage) above the voltage.
I would like to try to add Alq3 after BCP to help electron injection.
By the way, I can change PEDOT: PSS to NPB 20nm (for te)?
Hi, The high current flowing through your device is mainly due to the EML. so you need to optimize the EML. try to increase the concentration of the solution and also you can try alternate solvent. If you have AFM facility, you can see the film morphology. from the high current problem, there might be some pin holes in the film. try to avoid that. Also try to optimize the annealing temperature which may result in crystallization of the small molecules.
dear Dipjyoti Das
Thanks you very.
I have tried many experiments recently.
Device :
ITO-PEDOT：PSS（4000rpm）-EML（ x rpm）-Al（TE 80nm）
EML
CBP:toluene 14mg:1ml
CBP：Ir（ppy）4wt％
and
CBP:toluene 6mg:1ml
CBP: Ir(ppy) 4wt%
No PMMA .All device (3cm*3cm average divided into 9 equal parts) .
Wet process rpm from 500,1000,1500,2000,2500 results are the same
As a result, I am getting a very high current flowing through the manufactured device.
The result is the same as last.
Dear Shu Zhe
thank you very much
Yes. It is oled. No pled.
When i'm spinning
The EML solution is heated to 70 degrees to help it more evenly in the coating.
Can this method be?
The visual effect is better,
But the result is the same......
Wet speed from 500,1000,1500,2000,2500 results are the same
As a result, I am getting a very high current flowing through the manufacturing equipment.
The result is the same as the previous one.
dear Shu Zhe
thanks you very much.
Sorry，I am busy with the seminar recently, neglect your answer.
Recent experiment
ITO - EML（x rpm）- Al（TE 80 up nm）
EML
CBP：甲苯14mg：1ml
CBP：Ir（ppy）4wt％
The luminescent solvent was heated at 50 degrees and stirred evenly for 8 hours.
Use filter paper (0.22um) filter, no high current phenomenon, the components can also be normal light.
However, the use of hand-held UV light found that many luminescent materials are filtered out, so the brightness is quite uneven, visual is a little bit of light.
The next experiment will attempt to filter the luminescent solvent using filter paper (0.45um).
And the luminescent solvent was heated to 60 degrees or 70 degrees and stirred for another 8 hours to increase the solubility of the small molecule CBP.
Do not know this experiment process, whether you can give me more advice.
Attached to the patent website I refer to
Https://www.google.com/patents/US7453200
HI Shu Zhe
Sorry .
Recent experiments are quite numerous.
In the recent experiment, toluene was replaced with chlorobenzene and filtered using a 0.45um filter to clearly visualize a flat film.
But the simple components ITO-EML (1500,2000,2500,3000 rpm) -AL has been the same as before the short-circuit situation.
As a result, I am getting a very high current flowing through the manufacturing equipment.
When the solvent is toluene, the filter has not yet been used to obtain a short circuit phenomenon and a large current component, but the use of a filter (0.45um) element is greatly improved
Now the use of chlorobenzene solvent, the use of filters (0.45um) is still a short circuit phenomenon, whether you can try to use the filter size 0.22um to try to see?
Can give me other suggestions, but this experiment has been unable to successfully break through.
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