Results 1 to 10 of about 10,172,350 (399)

Robust excitonic light emission in 2D tin halide perovskites by weak excited state polaronic effect [PDF]

Nature Communications
2D perovskites hold immense promise in optoelectronics due to their strongly bound electron-hole pairs (i.e., excitons). While exciton polaron from interplay between exciton and lattice has been established in 2D lead-based perovskites, the exciton ...
Hongzhi Zhou, Qingjie Feng, Cheng Sun, Yahui Li, Weijian Tao, Wei Tang, Linjun Li, Enzheng Shi, Guangjun Nan, Haiming Zhu   +9 more
doaj   +2 more sources

Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad [PDF]

Advanced Science
Effective photoinduced charge transfer makes molecular bimetallic assemblies attractive for applications as active light‐induced proton reduction systems. Developing competitive base metal dyads is mandatory for a more sustainable future.
Michal Nowakowski, Marina Huber‐Gedert, Hossam Elgabarty, Aleksandr Kalinko, Jacek Kubicki, Ahmet Kertmen, Natalia Lindner, Dmitry Khakhulin, Frederico A. Lima, Tae‐Kyu Choi, Mykola Biednov, Lennart Schmitz, Natalia Piergies, Peter Zalden, Katharina Kubicek, Angel Rodriguez‐Fernandez, Mohammad Alaraby Salem, Sophie E. Canton, Christian Bressler, Thomas D. Kühne, Wojciech Gawelda, Matthias Bauer   +21 more
doaj   +2 more sources

Excited-State Intramolecular Proton Transfer: A Short Introductory Review

Molecules, 2021
In this short review, we attempt to unfold various aspects of excited-state intramolecular proton transfer (ESIPT) from the studies that are available up to date.
H. Joshi, L. Antonov
semanticscholar   +1 more source

Excited-state quantum phase transitions [PDF]

Journal of Physics A: Mathematical and Theoretical, 2020
We review the effects of excited-state quantum phase transitions (ESQPTs) in interacting many-body systems with finite numbers of collective degrees of freedom. We classify typical ESQPT signatures in the spectra of energy eigenstates with respect to the
P. Cejnar, P. Str'ansk'y, M. Macek, M. Kloc   +3 more
semanticscholar   +1 more source

Electrochemiluminescence of Semiconductor Quantum Dots and Its Biosensing Applications: A Comprehensive Review

Biosensors, 2023
Electrochemiluminescence (ECL) is the chemiluminescence triggered by electrochemical reactions. Due to the unique excitation mode and inherent low background, ECL has been a powerful analytical technique to be widely used in biosensing and imaging. As an
Hui Sun, Ping Zhou, Bin Su
doaj   +1 more source

Phonon-assisted up-conversion photoluminescence of quantum dots

Nature Communications, 2021
Up-conversion photoluminescence in colloidal quantum dots is generally believed to be mediated by thermal activation from defect states. Here, the authors reveal that highly-efficient up-conversion photoluminescence instead is related to electron-phonon ...
Zikang Ye, Xing Lin, Na Wang, Jianhai Zhou, Meiyi Zhu, Haiyan Qin, Xiaogang Peng   +6 more
doaj   +1 more source

Anomalous efficiency elevation of quantum-dot light-emitting diodes induced by operational degradation

Nature Communications, 2023
Quantum-dot light-emitting diodes promise a new generation of high-performance and solution-processed electroluminescent light sources. Understanding the operational degradation mechanisms of quantum-dot light-emitting diodes is crucial for their ...
Siyu He, Xiaoqi Tang, Yunzhou Deng, Ni Yin, Wangxiao Jin, Xiuyuan Lu, Desui Chen, Chenyang Wang, Tulai Sun, Qi Chen, Yizheng Jin   +10 more
doaj   +1 more source

Ground and excited state charge transfer at aqueous nanodiamonds [PDF]

, 2023
Nanodiamonds (NDs) are unique carbonaceous materials with exceptionally high stability, hardness, and notable electronic properties. Their applications in photocatalysis, biomedicine, and energy materials are usually carried out in aqueous environments ...
Bande, Annika, Kirschbaum, Thorren, Wang, Xiangfei   +2 more
core   +1 more source

Molecular stacking controlling coherent and incoherent singlet fission in polymorph rubrene single crystals

Aggregate, 2023
Singlet fission (SF) is an appealing process where one photoexcited singlet transforms to two triplets, which can overcome thermalization energy loss and improve solar cell efficiency.
Yanping Liu, Xuexiao Yang, Lei Ye, Haibo Ma, Haiming Zhu   +4 more
doaj   +1 more source

Coupled Electronic and Anharmonic Structural Dynamics for Carrier Self‐Trapping in Photovoltaic Antimony Chalcogenides

Advanced Science, 2022
V–VI antimony chalcogenide semiconductors have shown exciting potentials for thin film photovoltaic applications. However, their solar cell efficiencies are strongly hampered by anomalously large voltage loss (>0.6 V), whose origin remains controversial ...
Weijian Tao, Leilei Zhu, Kanghua Li, Chao Chen, Yuzhong Chen, Yujie Li, Xufeng Li, Jiang Tang, Honghui Shang, Haiming Zhu   +9 more
doaj   +1 more source