Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Producing nanoparticle solutions based on pulsed laser ablation

A nanoparticle and pulse technology, applied in the field of preparing thin-film solar cells, can solve problems such as improper composition and impurities

Inactive Publication Date: 2012-11-14
IMRA AMERICA
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Incomplete reduction will lead not only to impurity phases but also to improper composition

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Producing nanoparticle solutions based on pulsed laser ablation
  • Producing nanoparticle solutions based on pulsed laser ablation
  • Producing nanoparticle solutions based on pulsed laser ablation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 Schematic illustration of a laser-based system for the preparation of nanoparticles of complex compounds in liquids according to the invention. In one embodiment, a laser beam 1 is received from a pulsed laser source (not shown) and focused with a lens 2 . The source of the laser beam 1 can be a seed laser or any other laser source known in the art as long as it has the pulse duration, repetition rate and power level as described below. The focused laser beam 1 is then directed from the lens 2 to a guide mechanism 3 for controlling the movement of the laser beam 1 . The guiding mechanism 3 may be any guiding mechanism known in the art, including for example piezo-mirrors, acousto-optic deflectors, rotating polygons, vibrating mirrors and prisms. The guiding mechanism 3 is preferably a vibrating mirror 3 capable of controlling and rapidly moving the laser beam 1 . The guide 3 guides the laser beam 1 towards the target 4 . The target 4 is made of the desired ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
wavelengthaaaaaaaaaa
band gapaaaaaaaaaa
Login to View More

Abstract

A method of producing nanoparticles of solar light absorbing compound materials based on pulsed laser ablation is disclosed. The method uses irradiation of a target material of solar light absorbing compound material with a pulsed laser beam having a pulse duration of from 10 femtoseconds to 500 picoseconds to ablate the target thereby producing nanoparticles of the target The nanoparticles are collected and a solution of the nanoparticles is applied to a substrate to produce a thin film solar cell. The method preserves the composition and structural crystalline phase of the starting target. The method is a much lower cost fabrication method for thin film solar cells.

Description

[0001] related application [0002] This application claims the benefit of US Provisional Application Serial No. 61 / 302995, filed February 10, 2010. [0003] Statement Regarding Federally Funded Research [0004] none. field of invention [0005] The present invention relates to the preparation of thin film solar cells, and more particularly to the use of pulsed laser ablation of source materials in liquids to prepare nanoparticle solutions for use in the manufacture of thin film solar cells. Background of the invention [0006] Thin-film solar cells consume significantly less source material and are therefore less expensive to manufacture than monocrystalline solar cells. In current thin-film solar cell fabrication, the light-absorbing layer, which is the most critical layer, is usually fabricated using vacuum methods such as thermal evaporation, chemical vapor deposition, and sputtering. Precise control of film deposition is required for compounds consisting of: group I...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/04B82B3/00B22F1/0545
CPCH01L31/035281B22F9/04B23K26/365B22F2998/00Y02E10/543B82Y40/00B22F1/0022H01L31/0296Y02E10/541H01L31/03923H01L31/0322B22F2999/00H01L31/1828H01L31/03925B82B1/001B23K26/361Y02P70/50B22F1/0545B22F2202/11B22F1/054B22F1/056
Inventor 刘冰车勇
Owner IMRA AMERICA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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