Objective
Picosecond and subpicosecond laser spectroscopy experiments in semiconductors have recently allowed the probing of the ultrafast relaxation dynamics of photogenerated electron hole plasmas. These experiments provide information germane to the temporal evolution of the hot carrier distributions. This knowledge is important, both for the understanding of the fundamental physics of the relaxation processes involved and for the technology of device development.
The luminescence of weakly photoexcited heavily doped semiconductors has been studied, where the number of photogenerated electron hole pairs is small with respect to the number of ionised donors or acceptors. In this case, the time resolved luminescence is directly related to the evolution of the distribution of the minority carriers and theorectical difficulties are considerably reduced as both the lattice and the majority carrier bath are at thermodynamic equilibrium. Luminescence spectroscopy of p-doped indium phosphide has been undertaken on a femtosecond time scale in order to elucidate the dynamics of the electrons photoexcited high in the Gamma valley by an ultrashort optical pulse.
The work has enable the elucidation of several relaxation mechanisms for hot electrons produced by ultrashort optical excitation in the Gamma of both intrinsic and doped indium phosphide. It provides an experimental and theoretical foundation for ongoing and planned studies of doped quantum confined semiconductor structures using tunable femtosecond laser techniques.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences inorganic chemistry post-transition metals
- natural sciences physical sciences electromagnetism and electronics semiconductivity
- engineering and technology materials engineering amorphous solids
- natural sciences physical sciences optics laser physics
- natural sciences physical sciences optics spectroscopy
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Data not available
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
91128 Palaiseau
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.