نتایج جستجو برای: maximum quantum efficiency fvfm

تعداد نتایج: 940288  

Journal: :Nanoscale 2014
Bo Peng Zhenpeng Li Evren Mutlugun Pedro Ludwig Hernández Martínez Dehui Li Qing Zhang Yuan Gao Hilmi Volkan Demir Qihua Xiong

CTAB-coated Au nanorods were directly self-assembled into a vertically aligned monolayer with highly uniform hot spots through a simple but robust approach. By coupling with CdSe/ZnS quantum dots, a maximum enhancement of 10.4 is achieved due to: increased excitation transition rate, radiative rate, and coupling efficiency of emission to the far field.

Journal: :Chemical communications 2011
Igor O Koshevoy Chia-Li Lin Antti J Karttunen Matti Haukka Chun-Wei Shih Pi-Tai Chou Sergey P Tunik Tapani A Pakkanen

The unprecedented, purely gold(I) alkynyl-diphosphine clusters 1-3 demonstrate intense room-temperature phosphorescence with maximum quantum efficiency of 92% in solution (3) and 86% in solid (2) and thermally dependent emission in the crystalline form, attributed to the crystal lattice arrangement.

Journal: :Advanced materials 2016
Mengxia Liu F Pelayo García de Arquer Yiying Li Xinzheng Lan Gi-Hwan Kim Oleksandr Voznyy Lethy Krishnan Jagadamma Abdullah Saud Abbas Sjoerd Hoogland Zhenghong Lu Jin Young Kim Aram Amassian Edward H Sargent

The latest advances in colloidal-quantum-dot material processing are combined with a double-sided junction architecture, which is done by efficiently incorporating indium ions in the ZnO eletrode. This platform allows the collection of all photogenerated carriers even at the maximum power point. The increased depletion width in the device facilitates full carrier collection, leading to a record...

Journal: :Chemical communications 2014
Jie Li Hiroko Nomura Hiroshi Miyazaki Chihaya Adachi

Highly efficient exciplex systems incorporating a heptazine derivative () as an electron acceptor and 1,3-di(9H-carbazol-9-yl)benzene () as an electron donor are developed. An organic light-emitting diode containing 8 wt% : as an emitting layer exhibits a maximum external quantum efficiency of 11.3%.

Journal: :Chemical communications 2010
Hyo Joong Lee Dong Wook Chang Su-Moon Park Shaik M Zakeeruddin Michael Grätzel Md K Nazeeruddin

Redox couples based on cobalt complexes were found to be effective in regenerating both inorganic CdSe quantum dot- and organic dye-sensitizers. The hybrid sensitizer composed of CdSe QD and ruthenium sensitizer (Z907Na) dye showed a maximum power conversion efficiency of 4.76% on using cobalt(o-phen)(3)(2+/3+) as a common redox mediator.

Journal: :Chemical communications 2015
Ming Liu Yuki Seino Dongcheng Chen Susumu Inomata Shi-Jian Su Hisahiro Sasabe Junji Kido

Two blue thermally activated delayed fluorescence molecules based on bis(phenylsulfonyl)benzene with very small singlet-triplet splitting energy were designed and synthesized by combining 3,6-di-tert-butylcarbazole with 1,4-bis(phenylsulfonyl)benzene and 1,3-bis(phenylsulfonyl)benzene, and a maximum external quantum efficiency of 11.7% was achieved for an electroluminescent device.

Journal: :Chemical communications 2014
Yuanjing Cai Kerim Samedov Haley Albright Brian S Dolinar Ilia A Guzei Rongrong Hu Chaocan Zhang Ben Zhong Tang Robert West

Three ring-shaped AEE-active silole-containing compounds were synthesized by mild condensation reactions. Cyclotrisiloxane compound 1 displays high solid-state quantum yield (Φfl = 0.86) with the fluorescence maximum at 512 nm. This high fluorescence efficiency results mainly from decreased vibrational pathways to fluorescence decay due to the intramolecular C-H···π interactions.

2007

An exciting field known as “Coherent Control of Quantum Systems” emerged from previously unsuccessful attempts to employ lasers to steer chemical reactions. One of the main ideas is to use the phase coherences within a spectrally broad bandwidth laser pulse to drive quantum systems to a desired target state. In other words, we specify the initial and the final state of a quantum system and desi...

Journal: :CoRR 2017
Yuanlong Wang Qi Yin Daoyi Dong Bo Qi Ian R. Petersen Zhibo Hou Hidehiro Yonezawa Guo-Yong Xiang

The identification of an unknown quantum gate is a significant issue in quantum technology. In this paper, we propose a quantum gate identification method within the framework of quantum process tomography. In this method, a series of pure states are inputted to the gate and then a fast state tomography on the output states is performed and the data are used to reconstruct the quantum gate. Our...

بنایان اول, محمد, سعادتیان, بیژن, نباتی, جعفر, کافی, محمد,

Although silicon (Si) is a non-essential element for most crops, but has shown beneficial roles in growth of crop plants. Therefore, evaluation of nutritional role of Si and nano Si components in crop production is necessary. For this purpose, a factorial experiment, based on randomized complete blocks design with three replications, was conducted at the Research Greenhouse of College of Agricu...

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