Solution Synthesis and Deposition of Kesterite Copper Zinc Tin Chalcogenide Films
- Technology Benefits
- Readily achievable uniform chemical composition distribution (active layer) Precise control of both structural and electrical properties of the solar cell active layer Reduced costs Environmental friendly
- Technology Application
- Production of all second generation and future solar cells
- Detailed Technology Description
- Researchers at UCLA have developed a solution based method for Cu2ZnSnS4 (CZTS) precursor synthesis. This method provides a powerful tool for depositing uniform films in chemical compositions for large scale device fabrication.
- Supplementary Information
- Inventor: YANG, Yang | YANG, Wenbing | LI, Shenghan | HSU, Wan-Ching
Priority Number: WO2012174551A3
IPC Current: H01L005148 | H01L005146
Assignee Applicant: The Regents of the University of California
Title: INORGANIC SOLUTION AND SOLUTION PROCESS FOR ELECTRONIC AND ELECTRO-OPTIC DEVICES | SOLUTION INORGANIQUE ET PROCÉDÉ D'OBTENTION DE SOLUTION POUR DISPOSITIFS ÉLECTRONIQUES ET ÉLECTRO-OPTIQUES
Usefulness: INORGANIC SOLUTION AND SOLUTION PROCESS FOR ELECTRONIC AND ELECTRO-OPTIC DEVICES | SOLUTION INORGANIQUE ET PROCÉDÉ D'OBTENTION DE SOLUTION POUR DISPOSITIFS ÉLECTRONIQUES ET ÉLECTRO-OPTIQUES
Summary: Solution is used for manufacturing Kesterite film on substructure of electronic or electro-optic device (all claimed), and photovoltaic device e.g. solar cell.
Novelty: Solution for forming for manufacturing Kesterite film for electronic or electro-optic device, contains solvent, additive chosen from amine-containing compounds and solute comprising aluminum, gallium, indium, germanium, tin or antimony
- Industry
- Environmental/Green Technology
- Sub Category
- Solar Cell
- Application No.
- 9502600
- Others
-
State Of Development
Devices have been fabricated with the structure of ITO-glass/CZTS/CdS/Ag and the method was tested and validated in the lab. Photovoltaic effect has been demonstrated from the initial solution processed CZTS device and current-voltage characterization shows an excellent rectifying effect of the p-n junction between CZTS/CdS with an ideality factor of 1.3.
Background
Developing a feasible method for renewable energy generation has become a focus due to concerns over global warming and increased demand for energy. Among renewable energy sources, solar energy has attracted the most attention but production scaling and rising costs are hurdles for photovoltaic technologies to compete with traditionally generated power.
In so called "second generation" solar cells, CIGS and its related materials are utilized for the fabrication of low-cost and high-efficiency solar cells. However, the continued supply of the rare metal indium in the mass production stage has created major concerns.Additional Technologies by these Inventors
- High-throughput Solution Processing of Large Scale Graphene for Device Applications
- Solution-Deposition of CIGS Solar Cell by Spray-Coating
- Three-Terminal Organic Memory Devices
- Bottom Insulating Gate Vertical Organic Transistor
- Rewritable Nano-Surface Organic Electrical Bistable Devices
- Organic Electrical Bistable Devices Fabricated by Solution Processing
- Organic Bistable Device and Organic Memory Cells
- Polarizing Photovoltaic Device and its Application in Liquid Crystal Displays and Tandem Solar Cells
- Conjugated Polymers with Selenium Substituted Diketopyrrolopyrrole Unit for Electronics Devices
- Multiple Donor/Acceptor Bulk Heterojunction Solar Cells
- Au Nanoparticles Doped Polyaniline Nanofiber Non-Volatile Memory Device
- Titanium Oxide as the Window Layer for Metal Chalcogenide Photovoltaic Devices
- Novel Polymers For Polymer Solar Cells, Transistors, And Sensors
- Silver Nanowire-Indium Tin Oxide Nanoparticle As A Transparent Conductor For Optoelectronic Devices
- Design Of Semi-Transparent, Transparent, Stacked Or Top-Illuminated Organic Photovoltaic Devices
- Amorphous Silicon And Polymer Hybrid Tandem Photovoltaic Cell
- Efficient And Stable Of Perovskite Solar Cells With All Solution Processed Metal Oxide Transporting Layers
- A Bi-Functional Lewis Base Additive For Microscopic Homogeneity In Perovskite Solar Cells
Tech ID/UC Case
22252/2011-410-0
Related Cases
2011-410-0
- *Abstract
-
UCLA researchers in the Department of Material Science and Engineering have developed a solution based method for Cu2ZnSnS4 (CZTS) precursor synthesis that uses earth abundant and environmental friendly materials as a viable alternative to Cu(In,Ga)Se2 (CIGS) for use in solar cells.
- *IP Issue Date
- Nov 22, 2016
- *Principal Investigator
-
Name: Wan-Ching Hsu
Department:
Name: Shenghan Li
Department:
Name: Wenbing Yang
Department:
Name: Yang Yang
Department:
- Country/Region
- USA
