Results 91 to 100 of about 156,775 (308)

Realization of blue-emitting CsPb(Br1-xClx)3 nanocrystals via simultaneous halide exchange and defect passivation using dopamine hydrochloride

Communications Engineering
Halide perovskite nanocrystals are promising materials for optoelectronic devices due to their outstanding opto-electrical properties. However, achieving stable blue emission with high photoluminescence quantum yield remains challenging because of halide
Dokyum Kim, Jung Su Park, Sang-Youp Yim, Joon-Hyung Lee, Chang-Lyoul Lee   +4 more
doaj   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Tailoring Charge Donor–Acceptor Interaction in CsPbBr3 Perovskite Nanocrystals through Ligand Exchange

Small Science
The surface ligands in colloidal metal halide perovskites influence not only their intrinsic optoelectronic properties but also their interaction with other materials and molecules. Donor–acceptor interactions of CsPbBr3 perovskite nanocrystals with TiO2
Syed Abdul Basit Shah, Sushant Ghimire, Rostyslav Lesyuk, Maria Vittoria Diamanti, Vanni Lughi, Christian Klinke   +5 more
doaj   +1 more source

Incorporation of europium III complex into nanoparticles and films obtained by the Sol-Gel methodology

Materials Research, 2010
The sol-gel process is very effective for the preparation of new materials with potential applications in optics, sensors, catalyst supports, coatings, and specialty inorganic polymers that can be used as hosts for the accommodation of organic molecules.
Faley Jean de Sousa, Gilberto Pansani Altino de Lima, Lílian Rodrigues Ávila, Katia Jorge Ciuffi, Paulo Sergio Calefi, Eduardo José Nassar   +5 more
doaj   +1 more source

Theory of Photoluminescence by Metallic Structures

ACS Nano
Light emission by metals at room temperature is quenched by fast relaxation processes. Nevertheless, Mooradian reported in 1969 the observation of photoluminescence by metals pumped by a laser. Strikingly, while it is currently at the heart of many promising applications, this phenomenon is still poorly understood.
Aurelian Loirette-Pelous, Jean-Jacques Greffet   +1 more
openaire   +3 more sources

An overview on the photoluminescence emission in ZNO single crystal. A joint experimental and theoretical analysis

, 2012
The purpose of the present chapter is to join both the experimental and theoretical results to explain the different responses of photoluminescence (PL) emission at room temperature of ZnO powders by using different structural order-disorder effects ...
Macário, Leilane R. [UNESP], Pizani, Paulo S., Lima, Renata C., Andrés, J., Longo, Elson [UNESP], Sambrano, Júlio R. [UNESP], Longo, Valéria M. [UNESP], Varela, José A. [UNESP], Espinosa, José W. M.   +8 more
core  

Phase evolution and photoluminescence enhancement of CePO4 nanowires from a low phosphate concentration system

, 2013
Uniform CePO4 nanowires have been successfully synthesized in a low phosphate concentration system through a single-step hydrothermal process. The low phosphate concentration might decrease the surface PO43- adsorption of the as-synthesized CePO4 ...
Deng, Jinxia, Wang, Dan, Wang, Jiali, Chen, Jun, Xu, Pengfei, Yu, Ranbo, Zong, Lingbo, Xing, Xianran   +7 more
core   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Photoluminescence of Eu2+ doped ZnS nanocrystals

, 2000
Eu2+ doped ZnS nanocrystals exhibit new luminescence properties because of the enlarged energy gap of nanocrystalline ZnS host due to quantum confinement effects.
Guo HQ, Zhang ZH, Liu SM,Chinese Acad Sci,Inst Semicond,Lab Semicond Mat Sci,Beijing 100083,Peoples R China., Wang ZG, Liu FQ, Liu SM   +5 more
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