Browsing Theses by Supervisor "Li, Yuning"
Now showing items 1-19 of 19
-
Amide-based Donor-acceptor Polymers for Sensor Applications
(University of Waterloo, 2021-06-02)Organic semiconductors, especially polymerized organic semiconductors, are suitable for manufacturing low-cost electronic products on flexible lightweight substrates through a high throughput roll-to-roll printing process. ... -
Conjugated Polymers Having Indolin-2-one Side Chains for Organic Electronics
(University of Waterloo, 2021-01-26)It is of great significance to develop π-conjugated semiconducting polymers for various kinds of printed organic electronics applications such as organic solar cells (OSCs) and organic field-effect transistors (OFETs). ... -
Development of Low-cost Organic Solar Cells Using Polythiophenes as Donors
(University of Waterloo, 2020-01-15)The need to develop sustainable, eco-friendly energy sources is a major driving force in the development of efficient photovoltaic cells. Organic solar cells are a relatively new solar energy technology compared to their ... -
Development of Novel Π-conjugated Polymer Semiconductors for Organic Solar Cells
(University of Waterloo, 2018-12-20)Bulk heterojunction polymer solar cell (PSC) is a promising photovoltaic technology for clean and renewable energy sources due to its superior advantages such as mechanical flexibility, light weight, low-cost fabrication, ... -
Electrodeposition of p-Type Cuprous Oxide and its Application in Oxide Solar Cells
(University of Waterloo, 2017-01-06)Cuprous oxide (Cu2O) is a promising material for the fabrication of oxide solar cells due to its abundance, nontoxicity, stability and ability to be deposited under mild conditions. At the moment, the reported efficiencies ... -
Fabrication and energetic characterization of micro and nano sized Al/CuO core-shell particles
(University of Waterloo, 2019-05-24)Thermite is one type of energetic material which could release a large amount of heat through an oxidation-reduction reaction. Thermite material has a lot of application in joining, metal refining and propulsion. Al/CuO ... -
Hemi-Isoindigo Polymers and Oligomers for Temperature Sensing Applications
(University of Waterloo, 2022-02-09)Organic semiconductors are extensively used for electronic applications such as OFETs and OPVs due to their low-cost and well-defined manufacturing processes. This includes vacuum deposition, solution processing, and ... -
High Performance n-Type Polymer Semiconductors for Printed Logic Circuits
(University of Waterloo, 2016-02-01)Solution processable polymer semiconductors open up potential applications for radio-frequency identification (RFID) tags, flexible displays, electronic paper and organic memory due to their low cost, large area processability, ... -
The Influence of Dielectric Constant of Polymer Donors and Their Blends on the Performance of Organic Solar Cells
(University of Waterloo, 2021-01-26)Organic solar cell (OSC) is a promising photovoltaic technology because the optoelectronic properties of the organic materials can be easily tuned, which allows for constant improvement in the device performance, material ... -
Nature-Inspired Polymers: Promising Materials for OTFT-Based Sensors
(University of Waterloo, 2017-05-03)The concept of an organic thin film transistor was first introduced in the late 1980s and research was directed toward two key merits of performance, field-effect mobility and current ON/OFF ratio. Today these two key ... -
A new series of semiconducting azine polymers and their applications in organic electronics
(University of Waterloo, 2021-01-26)The rise of renewable energy and the urgency of sustainable development make organic solar cells (OSCs) or organic photovoltaics (OPVs) valued. Among so many donor materials for bulk heterojunction structure, P3HT is one ... -
Novel N-Type π-Conjugated Polymers for All-Polymer Solar Cell
(University of Waterloo, 2017-09-27)Organic solar cells (OSCs), also known as, organic photovoltaics (OPVs), appear as a promising technology for renewable energy owing to their light weight, great flexibility and low-cost fabrication process. So far most ... -
Organic Thin-Film Transistor Based Gas Sensors for Putrescine Detection
(University of Waterloo, 2018-09-11)The application of organic thin film transistors (OTFTs) has been progressing in the area of sensors for decades now. For accomplishing gas sensing in ambient conditions, polymers with good air stability and high enough ... -
Solution-processable oligomeric and small molecule semiconductors for organic solar cells
(University of Waterloo, 2016-06-08)Organic solar cells appear as a promising technology within photovoltaic field owing to their low-cost fabrication and their great flexibility enabling a widespread distribution. For now, they are still at the prototype ... -
Study of the Influence of Different Electrolyte Salts on the Performance of Lithium-Sulfur Batteries
(University of Waterloo, 2021-01-28)Lithium-sulfur batteries (LSBs) have advantages of extremely high theoretical specific capacity and energy density, environmental friendliness and low cost, making it one of the top candidates for the next-generation energy ... -
Synthesis of Novel Polythiophenes Having Alkylamide Substituents for Organic Solar Cells
(University of Waterloo, 2018-12-20)Solar energy is one of the most important sustainable energy resources which can satisfy increasingly growing demand of power and energy and reduce carbon footprint. In order to utilize the solar energy, solar cells are ... -
Thiophene-S,S-dioxidized indophenine for use in organic field effect transistors
(University of Waterloo, 2016-12-23)To address the need for better n-type organic semiconductors, thiophene-S,S-dioxidized indophenine (IDTO) was developed. IDTO is a planar quinoidal molecule with deep energy levels which facilitate stable and efficient ... -
Wide bandgap conjugated polymer donors based on alkyloxime substituted thiophene for organic solar cells
(University of Waterloo, 2021-09-23)Remarkable progress has been made for non-fullerene based organic solar cells (OSCs), with a power conversion efficiency (PCE) of over 18% having been achieved. Conjugated polymer donors consisting of alternating donor and ... -
Wide-bandgap Donor Polymers Based on Thiophene-Vinyl-Thiophene Ester (TVT-Ester) or Thiophene-Alkyloxime (TO) Units in Organic Solar Cells
(University of Waterloo, 2021-09-23)The organic solar cells (OSCs), a branch of the third-generation solar cell as a viable future energy resource has received a lot of attention in lab and industry today. The OSCs have advantages of low cost, light weight, ...