Modifying transparent electrode with conjugated organic semiconductor hole transport material as interface for enhancing performance of organic solar cell

Havare, Ali; Alsaeedi, Mona Sunaydih

doi:10.1016/j.jscs.2022.101575

Cited by 1 publication

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“…[60][61][62] The molecules studied in the literature show that the localization on N-naphthalene is to be the HOMO level of Naphthalene and the donor part of the molecules. [63][64][65]…”

Section: Theoretical Calculations Of Homo-lumo Energy Levelsmentioning

confidence: 99%

The Effect of the Interface Layer on the Electronic Parameters of the Light Emitting Electrochemical Cell (LEC) Device Based on Iridium (III) Complex that Calculated by Different Methods

Havare¹,

Alsaeedi²

2023

ECS J. Solid State Sci. Technol.

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We report a calculation of the electronic parameters and some optical measurement results of a light-emitting electrochemical cell (LEC), one of the most basic forms of electroluminescent films by modifying 4-(4-methoxy-N-naphthalen-1-ylanilino) benzoic acid (MA) as a hole injection layer doped with an emissive layer that is ionic transition metal complex (Ir[dF(CF3)ppy]2(dtbpy))PF6-(Ir-iTMC). The electronic parameters of LEC device were computed using three different methods; Cheung and Cheung’s, Conventional Schottky and Norde, to evaluate the ideality factor (n), the barrier height (ϕ) and the series resistance (Rs) of the LEC device. The formation on indium tin oxide (ITO) substrate was analyzed by atomic force microscopy. The HOMO-LUMO energy level and electronic charge distribution of the MA molecule were computed theoretically using Chemissian software. The MA's HOMO-LUMO energy level is determined to be EHOMO=-5.27 eV and ELUMO=-1.40 eV. The ITO surface has been modified with the self-assembled monolayers technique as an interlayer to improve the surface working function by simplifying hole injection from the ITO anode to the hole transport layer in the LEC. The Ir- iTMC complexes containing Π-conjugated bridging ligand shown better external quantum efficiency, reaching to 1.49%.

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“…[60][61][62] The molecules studied in the literature show that the localization on N-naphthalene is to be the HOMO level of Naphthalene and the donor part of the molecules. [63][64][65]…”

Section: Theoretical Calculations Of Homo-lumo Energy Levelsmentioning

confidence: 99%