Zobrazeno 1 - 10
of 257
pro vyhledávání: '"reverse intersystem crossing"'
Autor:
Hang Gao, Shen‐Yu Shi, Shu‐Min Wang, Qian‐Qian Tao, Hui‐Li Ma, Jun Hu, Hong‐Yuan Chen, Jing‐Juan Xu
Publikováno v:
Aggregate, Vol 5, Iss 1, Pp n/a-n/a (2024)
Abstract Full utilization of the excited species at both singlet states (1R*) and triplet states (3R*) is crucial to improving electrochemiluminescence (ECL) efficiency but is challenging for organic luminescent materials. Here, an aggregation‐indu
Externí odkaz:
https://doaj.org/article/5bd29f7ac4d14a79806811b829fd24c8
Autor:
Aftab Hussain, Ahmad Irfan, Farah Kanwal, Muhammad Afzal, Aijaz Rasool Chaudhry, Mohamed Hussien, Muhammad Arif Ali
Publikováno v:
Frontiers in Chemistry, Vol 11 (2023)
The violet-to-blue thermally activated delayed fluorescence (TADF) emitters were created employing several substituents based on 5,5-dimethyl-5,10-dihydropyrido [2,3-b][1,8] naphthyridine-diphenylsulphone (DMDHPN-DPS) called 1a via “CH/N” and “
Externí odkaz:
https://doaj.org/article/cd90251c0e2443b3925d3467d83108ec
Publikováno v:
Advanced Science, Vol 10, Iss 29, Pp n/a-n/a (2023)
Abstract The high‐level reverse intersystem crossing (HL‐RISC, T2 → S1) process from triplet to singlet exciton, namely the “hot exciton” channel, has recently been demonstrated in the traditional fluorescent emitter of TBRb. Although it is
Externí odkaz:
https://doaj.org/article/77973671bbd94b31b123e45f62d6bbe0
Publikováno v:
Applied Physics Express, Vol 17, Iss 6, p 061001 (2024)
The characteristic of inverted singlet-triplet excited states, in which the lowest singlet excited state (S _1 ) is lower than the lowest triplet state (T _1 ) in energy, was observed in a dialkylamine-substituted pentaazaphenalene derivative, 5AP-N(
Externí odkaz:
https://doaj.org/article/23c3b7be75754b9f8b9bfbc5163214d2
Autor:
Ryosuke Okumura, Yu Kusakabe, Florian Rauch, Lukas Lubczyk, Katsuaki Suzuki, Todd B. Marder, Hironori Kaji
Publikováno v:
Applied Physics Express, Vol 17, Iss 4, p 041003 (2024)
Efficient reverse intersystem crossing (RISC) is an important process for thermally activated delayed fluorescence (TADF) to suppress efficiency roll-off in organic LEDs (OLEDs). Enhancing spin–orbit coupling is effective for fast RISC and is achie
Externí odkaz:
https://doaj.org/article/72d21ca6facb44a7a2e890ff05741b35
Publikováno v:
Taiyuan Ligong Daxue xuebao, Vol 53, Iss 1, Pp 21-26 (2022)
High efficiency monochrome red and white OLEDs were realized through the control of dopant concentration by employing the exciplex mCP:PO-T2T as host. The red OLED based on exciplex host achieved the maximum external quantum efficiency (EQE) of 21%,
Externí odkaz:
https://doaj.org/article/8ba51f8f4aa34573ae910d25e7762b82
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
According to Hund’s multiplicity rule, the energy of the lowest excited triplet state (T1) is always lower than that of the lowest excited singlet state (S1) in organic molecules, resulting in a positive singlet-triplet energy gap (ΔEST). Therefor
Externí odkaz:
https://doaj.org/article/f6b9e7568770419291733ab9e064b63d
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
Exciplexes possessing thermally activated delayed fluorescence (TADF) characteristics have received much attention in the fields of organic light-emitting materials and devices over the past decade. In general, an exciplex is a physical mixture betwe
Externí odkaz:
https://doaj.org/article/ad796380caee4a63a6aa234dbbf964a0
Publikováno v:
Advanced Science, Vol 9, Iss 16, Pp n/a-n/a (2022)
Abstract Thermally activated delayed fluorescent (TADF) materials have attracted increasing attention because of their ability to harvest triplet excitons via a reverse intersystem crossing process. TADF gain materials that can recycle triplet excito
Externí odkaz:
https://doaj.org/article/89ea81a71e8d48d19367b6d5a2ac0296
Autor:
Esther Rebollar, Jorge Bañuelos, Santiago de la Moya, Julien Eng, Thomas Penfold, Inmaculada Garcia-Moreno
Publikováno v:
Molecules, Vol 27, Iss 15, p 4683 (2022)
We performed a time-gated laser-spectroscopy study in a set of heavy-atom free single BODIPY fluorophores, supported by accurate, excited-state computational simulations of the key low-lying excited states in these chromophores. Despite the strong fl
Externí odkaz:
https://doaj.org/article/4ab3e7fe7dc849d483d6b83a52794801