Method for measuring semiconductor quantum point dimension distribution using fluorescence spectrum
A technology of size distribution and fluorescence spectrum, which is applied in the field of measuring the size distribution of semiconductor quantum dots by fluorescence spectrum, can solve problems such as the complexity of the detection process, and achieve the effects of simple operation, good product quality, and short time consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0021] Below by embodiment and accompanying drawing, the present invention is described in further detail:
[0022] 1. In this embodiment, InAs / GaAs quantum dot samples are used, and the PL spectrum is first measured, and the measurement conditions are:
[0023] The quantum dot sample is placed under the objective lens of the microfluorescence spectrometer, the measurement temperature is controlled at a low temperature of 80K, the incident laser power is 200mW, and the incident laser wavelength is 632.8nm. At this time, the carrier density formed in the quantum dot sample is about 1.6×10 16 cm -3 , measured the PL spectrum of the InAs / GaAs quantum dot system, see figure 1 The solid line in , it can be seen that the center position of the peak of the PL spectrum (E 0 ) is 1.24eV, and the half-peak width is 75meV.
[0024] 2. Calculate the PL spectrum of the system according to the above-mentioned theoretical calculation method of InAs / GaAs semiconductor quantum dot PL spect...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com