How should i interpret this J-V characterisics in oled devices(attach pictures)?

i know that the current density characteristics in oled device are as follows. 1) ohmic current region 2) charge trapping region 3) space charge limited region and in 2) charge trapping region,...

01 February 2019 2,454 6 View

When the work function chage by ozone treatment on metal oxide surface, is it only on the surface?

when i deposit metal oxide on ITO substrate by spin coat if the surface of metal oxide is treated by ozone treatment like UV-ozone or O3-plasma, is work function chage only limited to the...

11 December 2018 3,917 5 View

Anybody here who konw how to and when to add stabilizer in NiO nanoparticles powder?

hi, im studying inorganic material NiO nanoparticle as hole injection layer in OLED. i sysnthesis NiO nanoparticles by solvothermal. after solvothermal process, i cetrifugate and wash the...

10 November 2018 5,631 5 View

Why non-rectifying junctions occur in ITO/metal oxide/Al structure?

hi im studying inorganic material as HIL in OLED. i sysnthesis NiO nanoparticles by was of solvothermal as HIL material. and i fabricated OLED devices that have the structure of...

10 November 2018 3,844 5 View

What is the role of acetic acid as stabilizer in NiO nanoparticle solution?

i'm studying inorganic material in QD-OLED and have sysnthesised NiO nanoparticles. at first , i didn't use stabilizer acetic acid. but afterward i realized that i had to use acetic acid as...

09 October 2018 5,559 5 View

What is the role of acetic acid as stabilizer in nickel oxide nanoparticles?

i'm studying inorganic material in QD-OLED and have sysnthesised NiO nanoparticles. at first , i didn't use stabilizer acetic acid. but afterward i realized that i had to use acetic acid as...

09 October 2018 8,579 0 View

When the ZnO synthesis, how to dry the precipitate that is in tube?

i have synthesize ZnO nanoparticle. in last process, after the tube containing the solution was centrifuged , the white precipitate remains in the tube bottom. then i add ethanol to obtain ZnO...

05 June 2018 2,775 9 View

About current density - voltage graph in ITO/PEDOT:PSS ?

i fabricate OLED device. the structure is ITO/PEDOT:PSS/PVK/QD/ZnO/Al. To see the hole injection , i fabricated ITO/PEDOT:PSS/Al. then i checked the cureent density - voltage. most of the graphs...

05 June 2018 9,350 4 View

When i use thermall evaporation, can i use duplicate source materials?

thermal evaporation of our labortory is being used as an Al(aluminum) deposition. but i want to deposit WO3(tungsten oxide) with this thermal evaporation instrument. is not the vacuum chamber...

04 May 2018 6,643 4 View

When spin coating, how to judge whether the up-layer affects the down-layers?

i'm going to stack layer with spin coater in ito substrate. ITO/WO3/NiO/Al (Al is deposited by thermal evaporation) the solvent of NiO is ethanol. and as a result of my research, the solvent of...

04 May 2018 811 2 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View

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02 March 2021 3,060 3 View

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02 March 2021 932 1 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

APA 7th In-Text citations with two references with three authors with the same surname, but four different author?

I have an issue with APA 7th in-text citation. II have two papers where the first three authors are the same, and the fourth is different. I am using the Mendeley desktop app, and automatically it...

02 March 2021 790 3 View