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Efficient near-infrared organic light-emitting diodes with emission from spin doublet excitons
Hwan-Hee Cho, Sebastian Gorgon, Giacomo Londi +11
The development of luminescent organic radicals has resulted in materials with excellent optical properties for near-infrared (NIR) emission. Applications of light generation in th…
Spontaneous exciton dissociation enables spin state interconversion in delayed fluorescence organic semiconductors
Alexander J. Gillett, Claire Tonnelé, Giacomo Londi +17
Engineering a low singlet-triplet energy gap (ΔEST) is necessary for efficient reverse intersystem crossing (rISC) in delayed fluorescence (DF) organic semiconductors, but results…
Sequentially Deposited versus Conventional Nonfullerene Organic Solar Cells: Interfacial Trap States, Vertical Stratification, and Exciton Dissociation
Jiangbin Zhang, Moritz H. Futscher, Vincent Lami +16
Bulk-heterojunction (BHJ) non-fullerene organic solar cells prepared from sequentially deposited donor and acceptor layers (sq-BHJ) have recently been promising to be highly effici…
Optical and electronic properties of colloidal CdSe Quantum Rings
James Xiao, Yun Liu, Violette Steinmetz +14
Luminescent colloidal CdSe nanorings are a new type of semiconductor structure that have attracted interest due to the potential for unique physics arising from their non-trivial t…
Highly Efficient Blue Host-Free and Host-Guest Organic Light-Emitting Diodes Based on Carbene-Metal-Amides
Patrick J. Conaghan, Campbell S. B. Matthews, Florian Chotard +5
Carbene-metal-amide type photoemitters based on CF-substituted carbazolate ligands show sky-blue to deep-blue photoluminescence from charge-transfer excited states. They are su…
High-efficiency perovskite-polymer bulk heterostructure light-emitting diodes
Baodan Zhao, Sai Bai, Vincent Kim +17
Perovskite-based optoelectronic devices have gained significant attention due to their remarkable performance and low processing cost, particularly for solar cells. However, for pe…
Degradation Kinetics of Inverted Perovskite Solar Cells
Mejd Alsari, Andrew J. Pearson, Jacob Tse-Wei Wang +6
We explore the degradation behaviour under continuous illumination and direct oxygen exposure of inverted unencapsulated formamidinium(FA)0.83Cs0.17Pb(I0.8Br0.2)3, CH3NH3PbI3, and…