نتایج جستجو برای: radiative lifetime

تعداد نتایج: 82202  

2015
Daniel Espinobarro-Velazquez Marina A Leontiadou Robert C Page Marco Califano Paul O'Brien David J Binks

Colloidal quantum dots (CQDs) can be used in conjunction with organic charge-transporting layers to produce light-emitting diodes, solar cells and other devices. The efficacy of CQDs in these applications is reduced by the non-radiative recombination associated with surface traps. Here we investigate the effect on the recombination dynamics in CdTe CQDs of the passivation of these surface traps...

2004
Masataka Fukugita Takahiro Kubota

We present a calculation of full one-loop radiative corrections, including the constant term, to the asymmetry parameter of polarised neutron beta decay. This gives the radiative correction to the axial coupling constant gA extracted from the beta asymmetry so that it ties to gA that appears in neutron decay lifetime in a consistent renormalisation scheme. We find that the ratio of axial-vector...

2016
Tim Burgess Dhruv Saxena Sudha Mokkapati Zhe Li Christopher R. Hall Jeffrey A. Davis Yuda Wang Leigh M. Smith Lan Fu Philippe Caroff Hark Hoe Tan Chennupati Jagadish

Nanolasers hold promise for applications including integrated photonics, on-chip optical interconnects and optical sensing. Key to the realization of current cavity designs is the use of nanomaterials combining high gain with high radiative efficiency. Until now, efforts to enhance the performance of semiconductor nanomaterials have focused on reducing the rate of non-radiative recombination th...

Journal: :Physical chemistry chemical physics : PCCP 2013
Gabriel Sagarzazu Kohki Inoue Masaki Saruyama Masanori Sakamoto Toshiharu Teranishi Sadahiro Masuo Naoto Tamai

Time-resolved photoluminescence (PL) and transient absorption (TA) spectroscopy are conducted in order to get knowledge on the excited state of CdSe nanorods (NR), and to assess the impact of Au nanoparticles (NP) on the carrier dynamics of hybrid Au-CdSe NRs. The decay dynamics measured in solution show an increase of non-radiative decay channels in the presence of Au NPs, whose characteristic...

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