Results 101 to 110 of about 19,868 (287)

Asymmetric Fluorinated Spiro Hole‐Transport Materials Enabled by a Rapid Core‐Forming Strategy for Blade‐Coated Perovskite Solar Cells

Advanced Science, EarlyView.
Facile synthesis of asymmetric fluorinated spiro‐type HTMs combined with blade‐coating fabrication and vacuum‐assisted crystallization enables high‐efficiency PSCs with PCEs of 24.49% (0.09 cm2) and 23.28% (1.00 cm2), along with excellent stability.
Kun‐Mu Lee, Xiu‐Ping Lin, Ya‐Ho Chang, Cheng‐Ting Tsai, Pei‐Chen Chu, Yu‐Hsun Chen, Wei‐Hao Chiu, Yu‐Che Lin, Sie‐Rong Li, Hsiao‐Chi Hsieh, Kang‐Ling Liau, Shih‐I. Lu, Chih‐Min Wang, Yan‐Duo Lin   +13 more
wiley   +1 more source

Enhancement of Dissymmetry Factors Through Axial Elongation of Hetero[n]helicenes

Angewandte Chemie, EarlyView.
A benzofuran scaffolding strategy enables the synthesis of hetero[9]‐, [12]‐, and [15]helicenes. Structural and chiroptical analyses demonstrate that systematic axial elongation increases helical distortion and significantly amplifies luminescence dissymmetry.
Jeppe S. Mogensen, Christoffer Bræstrup, Christoffer Warming, Georg I. Junker, Yann Lie, Mathias Hermann, Kurt V. Mikkelsen, Michael Pittelkow   +7 more
wiley   +2 more sources

Polymere Streuschichten zur Lichtauskoppelung aus organischen Leuchtdioden

, 2017
In dieser Arbeit werden hochbrechende polymere Streuschichten sowie deren Anwendung zur internen Lichtauskoppelung aus organischen Leuchtdioden (OLED) untersucht. Dazu wurden diese Streuschichten hergestellt, optimiert, analysiert und simuliert.
Riedel, Daniel
core  

High‐Brightness and Ultra‐Long‐Lifetime Spin Quantum Dot Light‐Emitting Diodes Enabled by Efficient Injection of Spin‐Polarized Holes Through a Hybrid Hole Transport Layer

Advanced Science, EarlyView.
This work employs a hybrid hole transport layer to enhance hole transport efficiency, resulting in improved performance for the final device. It achieves an external quantum efficiency of 6.68%, a circularly polarized electroluminescence asymmetry factor of 0.026, and a high luminance of 14,370 cd/cm2, representing the highest luminance reported to ...
Fengqi Qiu, Hechun Zhang, Wenbo Liu, Guiming Zhong, Fumin Lu, Yuqi Wang, Fujin Ai, Kai Wang, Dan Wu   +8 more
wiley   +1 more source

OLED - Schwester der LED?

, 2022
S.24-27Mit der Organischen Leuchtdiode (OLED) steht bereits die nächste Licht- und Displayinnovation kurz vor dem Start. Als Flächenstrahler kann die OLED ganz neue Lichterlebnisse erzeugen - und das sehr effizient.Nr.
Rahnfeld, Christian
core   +1 more source

Introducing Diradicaloid Thiele's Hydrocarbon Derivatives as Ligand in Transition Metal Chemistry

Angewandte Chemie, EarlyView.
N‐doped Thiele's hydrocarbon derivative is introduced as a ligand for the synthesis of mono‐ and bimetallic rhodium complexes as well as cyclometalated iridium complexes. These compounds constitute the first metal complexes based on a Thiele's hydrocarbon (or p‐quinodimethane) derivative and, to the best of our knowledge, the first cyclometalated ...
Alok Mahata, Nicolás. I. Neuman, Biprajit Sarkar   +2 more
wiley   +2 more sources

Cavity‐Compatible Light Extraction in Top‐Emitting Microcavity OLEDs via a Gentle Internal Corrugation Layer and Resonance‐Matched Narrowband Emission

Advanced Science, EarlyView.
A gentle internal corrugation layer conformally reshapes the microcavity OLED stack, redistributing confined optical power toward extractable channels while preserving cavity‐controlled emission. Combined with optical clear resin and a resonance‐matched narrowband pTSF emissive system, this cavity‐compatible architecture delivers an external quantum ...
Young Rok Kim, Ajay Nimbalkar, Min Chul Suh   +2 more
wiley   +1 more source

Selenophene π‐Core Fusion for Simultaneous Fast Reverse Intersystem Crossing and Narrowband Long‐Wavelength TADF

Angewandte Chemie, EarlyView.
Dibenzo[b,d]selenophene (DBSe) π‐core fusion enables rapid triplet–singlet interconversion while preserving the narrowband emission features of multi‐resonance thermally activated delayed fluorescence (MR‐TADF) luminogens. Combined with peripheral donor engineering, this strategy enables systematic emission tuning from green to red, leading to highly ...
Jingpeng Zhang, Jun Hyeon Lee, Guanting Liu, Tatsuya Mori, Takuma Yasuda   +4 more
wiley   +2 more sources

Solution‐Shearing of Highly Smooth Ion‐Gel Thin Films: Facilitating the Deposition of Organic Semiconductors for Ion‐Gated Organic Field Effect Transistors

Advanced Electronic Materials, Volume 11, Issue 6, May 2025.
A straightforward method is introduced to produce ion‐gel films with very low surface roughness by employing a solution‐shearing coating process. These ion‐gel films permit the growth of crystalline thin films of various small molecule organic semiconductor molecules directly on top of the ion‐gel layer, thereby enabling “inverted” small molecule ...
Jonathan Perez Andrade, Angelika Wrzesińska‐Lashkova, Anupam Prasoon, Felix Talnack, Katherina Haase, Bernd Büchner, Xinliang Feng, Yana Vaynzof, Mike Hambsch, Yulia Krupskaya, Stefan C. B. Mannsfeld   +10 more
wiley   +1 more source

Redshifting TADF Emission With a Bora‐Triptycene Lewis Acid

Angewandte Chemie, EarlyView.
Bathochromic emission shifting of donor–acceptor and multi‐resonant TADF emitters is achieved by adduct formation with a thia‐bora‐triptycene Lewis acid. TADF properties are retained on adduct formation whilst delivering > 100 nm redshift of the emission.
Mathew J. Cross, Emily L. Hanover, Arnaud Osi, Eli Zysman‐Colman, Michael J. Ingleson   +4 more
wiley   +2 more sources