Organic-Inorganic Hybrid Device with a Novel Deep-Blue Emitter of a Donor-Acceptor Type, with ZnO Nanoparticles for Solution-Processed OLEDs.

Seokwoo Kang, Raveendra Jillella, Sunwoo Park, Sangshin Park, Joo Hwan Kim, Dakyeung Oh, Joonghan Kim, Jongwook Park

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Article in Nanomaterials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 citing paper in PubMed.

Solution-Processed Metal Oxide Nanostructures for Carrier Transport.Nanomaterials (Basel, Switzerland) · 2023
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5 · Who and what money

Authors and funding

8 authors.

Seokwoo KangIntegrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea.

Raveendra JillellaIntegrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea.

Sunwoo ParkIntegrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea.

Sangshin ParkIntegrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea.

Joo Hwan KimIntegrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea.

Dakyeung OhDepartment of Chemistry, The Catholic University of Korea, Bucheon 14662, Korea.

Joonghan KimDepartment of Chemistry, The Catholic University of Korea, Bucheon 14662, Korea.

Jongwook ParkIntegrated Engineering, Department of Chemical Engineering, Kyung Hee University, Yongin 17104, Korea.

Funding

Korea Basic Science Institute 2019R1A6C1010052Ministry of Trade, Industry and Energy 20017422National Research Foundation of Korea 2020R1A6A1A03048004

6 · The paper itself

Abstract

Two new deep-blue emitters with bipolar properties based on an organoboron acceptor and carbazole donor were newly synthesized: 2-(9H-carbazol-9-yl)-5-(2,12-di-tert-butyl-5,9-dioxa-13b-boranaphtho [3,2,1-de]anthracen-7-yl)-5H-benzo[b]carbazole (TDBA-BCZ) and 5-(2,12-di-tert-butyl-5,9-dioxa-13b-boranaphtho [3,2,1-de]anthracen-7-yl)-8-phenyl-5,8-dihydroindolo[2,3-c]carbazole (TDBA-PCZ). The two emitters showed deep-blue and real-blue photoluminescence emission in their solution and film states, respectively. The doped spin-coated films were prepared using synthesized materials and showed a root-mean-square roughness of less than 0.52 nm, indicating excellent surface morphology. The doped devices, fabricated via a solution process using TDBA-BCZ and TDBA-PCZ as the dopants, showed electroluminescence peaks at 428 and 461 nm, corresponding to the Commission Internationale de L'éclairage (CIE) coordinates of (0.161, 0.046) and (0.151, 0.155), respectively. The external quantum efficiency (EQE)/current efficiency (CE) of the solution-processed forward devices, with TDBA-BCZ and TDBA-PCZ as dopants, were 7.73%/8.67 cd/A and 10.58%/14.24 cd/A, respectively. An inverted OLED device fabricated using rod-shaped ZnO nanoparticles as an electron injection layer showed a CE of 1.09 cd/A and an EQE of 0.30%.

Indexed as

blue emittersolution processZnO

Identifiers

PMID36364586

DOI10.3390/nano12213806

PMCPMC9654309

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.