A double interlocking strategy for narrowband ultra-violet emitters (CIEy ≈ 0.029) with dual functionality for efficient OLEDs

P. Keerthika; Seung Won Han; Ankit Kumar; Venkatramaiah Nutalapati; Kenkera Rayappa Naveen; Jun Yeob Lee; Rajendra Kumar Konidena

doi:10.1039/d5cc02584b

A double interlocking strategy for narrowband ultra-violet emitters (CIE_y ≈ 0.029) with dual functionality for efficient OLEDs

P. Keerthika
, Seung Won Han
, Ankit Kumar
, Venkatramaiah Nutalapati
, Kenkera Rayappa Naveen
, Jun Yeob Lee
, Rajendra Kumar Konidena

Department of Chemical Engineering

SRM Institute of Science and Technology
Indian Institute of Technology Patna
SRM University-AP
Indian Institute of Technology Roorkee

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We unveiled a double interlocking strategy to construct a narrowband ultraviolet (UV) emitter based on indolo[3,2,1-jk]carbazole. The emitter exhibited pure UV emission (λ_em ∼ 398 nm) with a narrow FWHM of 24 nm. As an OLED emitter, it demonstrated an EQE_max of 4.2% and CIE_y of 0.024. Used as a host for green PhOLEDs, it delivered EQE_max of 18.5% with an extremely low roll-off of 1% at 3000 cd m⁻².

Original language	English
Pages (from-to)	12554-12557
Number of pages	4
Journal	Chemical Communications
Volume	61
Issue number	67
DOIs	https://doi.org/10.1039/d5cc02584b
State	Published - 14 Aug 2025

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title = "A double interlocking strategy for narrowband ultra-violet emitters (CIEy ≈ 0.029) with dual functionality for efficient OLEDs",

abstract = "We unveiled a double interlocking strategy to construct a narrowband ultraviolet (UV) emitter based on indolo[3,2,1-jk]carbazole. The emitter exhibited pure UV emission (λem ∼ 398 nm) with a narrow FWHM of 24 nm. As an OLED emitter, it demonstrated an EQEmax of 4.2\% and CIEy of 0.024. Used as a host for green PhOLEDs, it delivered EQEmax of 18.5\% with an extremely low roll-off of 1\% at 3000 cd m−2.",

author = "P. Keerthika and Han, \{Seung Won\} and Ankit Kumar and Venkatramaiah Nutalapati and Naveen, \{Kenkera Rayappa\} and Lee, \{Jun Yeob\} and Konidena, \{Rajendra Kumar\}",

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T1 - A double interlocking strategy for narrowband ultra-violet emitters (CIEy ≈ 0.029) with dual functionality for efficient OLEDs

AU - Keerthika, P.

AU - Han, Seung Won

AU - Kumar, Ankit

AU - Nutalapati, Venkatramaiah

AU - Naveen, Kenkera Rayappa

AU - Lee, Jun Yeob

AU - Konidena, Rajendra Kumar

PY - 2025/8/14

Y1 - 2025/8/14

N2 - We unveiled a double interlocking strategy to construct a narrowband ultraviolet (UV) emitter based on indolo[3,2,1-jk]carbazole. The emitter exhibited pure UV emission (λem ∼ 398 nm) with a narrow FWHM of 24 nm. As an OLED emitter, it demonstrated an EQEmax of 4.2% and CIEy of 0.024. Used as a host for green PhOLEDs, it delivered EQEmax of 18.5% with an extremely low roll-off of 1% at 3000 cd m−2.

AB - We unveiled a double interlocking strategy to construct a narrowband ultraviolet (UV) emitter based on indolo[3,2,1-jk]carbazole. The emitter exhibited pure UV emission (λem ∼ 398 nm) with a narrow FWHM of 24 nm. As an OLED emitter, it demonstrated an EQEmax of 4.2% and CIEy of 0.024. Used as a host for green PhOLEDs, it delivered EQEmax of 18.5% with an extremely low roll-off of 1% at 3000 cd m−2.

UR - https://www.scopus.com/pages/publications/105013141756

U2 - 10.1039/d5cc02584b

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SN - 1359-7345

VL - 61

SP - 12554

EP - 12557

JO - Chemical Communications

JF - Chemical Communications

IS - 67

ER -

A double interlocking strategy for narrowband ultra-violet emitters (CIE_y ≈ 0.029) with dual functionality for efficient OLEDs

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