A5036134668- Conducting polymers and applications
- Advancements in Battery Materials
- Organic Electronics and Photovoltaics
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Transition Metal Oxide Nanomaterials
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Perovskite Materials and Applications
- Nanowire Synthesis and Applications
- Graphene research and applications
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Thermal properties of materials
- Advanced battery technologies research
- Thermal Radiation and Cooling Technologies
- Advanced Battery Technologies Research
- Organic Light-Emitting Diodes Research
- Carbon and Quantum Dots Applications
- Extraction and Separation Processes
- Thin-Film Transistor Technologies
- Electrochemical sensors and biosensors
- Electrocatalysts for Energy Conversion
- Analytical Chemistry and Sensors
- Molecular Junctions and Nanostructures
Research Center for Applied Science, Academia Sinica
2010-2014
National Taiwan University
2008-2013
Academia Sinica
2009-2012
National Yang Ming Chiao Tung University
2009-2010
Institute of Chemistry, Academia Sinica
2009
Taiwan Textile Research Institute
2009
National Tsing Hua University
2009
In this study, we found that the work functions (Φw) of solution-processable, functional graphene/carbon nanotube-based transparent conductors were readily manipulated, varying between 5.1 and 3.4 eV, depending on nature doping alkali carbonate salt. We used graphene-based electrodes possessing lower values Φw as cathodes in inverted-architecture polymer photovoltaic devices to effectively collect electrons, giving rise an optimal power conversion efficiency 1.27%.
In this study, a novel solution-processed small molecule (TQTFA) for use as an electron donor has been incorporated into organic solar cells based on poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl C71-butyric acid methyl (PC[70]BM). The combination of TQTFA with P3HT PC[70]BM allows not only broad absorption but also tuning the inter energy level leading to higher short-circuit current (JSC) open-circuit voltage (VOC). best performing devices exhibited power conversion efficiency 4.50%. is...
Six novel conjugated copolymers (P1−P6) containing coplanar cyclopentadithiophene (CPDT) units (incorporated with bithiazole/thienyl-based monomers) were synthesized and developed for the applications of polymer solar cells (PSCs). Copolymers P1−P6 covered broad absorption ranges from UV to near-infrared (400−800 nm) narrow optical band gaps 1.70−1.94 eV, which are compatible maximum photon reflux. Partially reversible p- n-doping processes in electrochemical experiments observed. Compared...
Abstract A series of soluble donor‐acceptor conjugated polymers comprising phenothiazine donor and various benzodiazole acceptors (i.e., benzothiadiazole, benzoselenodiazole, benzoxadiazole) sandwiched between hexyl‐thiophene linkers were designed, synthesized, used for the fabrication polymer solar cells (PSC). The effects on thermal, optical, electrochemical, photovoltaic properties these low‐bandgap (LBG) investigated. These LBG possessed large molecular weight ( M n ) in range 3.85−5.13...
Nanographite/polyaniline (NG/PANI) composite films were developed and characterized, the performances of dye-sensitized solar cells (DSSCs) employing these as counter electrode (CE) evaluated in this study. The nanographite/aniline (NG/ANI) particle was firstly synthesized by a reflux method served monomer for electro-polymerization NG/PANI films. surface modification NG ANI confirmed EDX mapping, TEM image, zeta-potential, UV-Vis absorption measurements. electro-polymerized characterized...
This paper describes the electrochromic properties of a series poly(3,4-alkylenedioxythiophene) (PXDOT) derivatives featuring various ring sizes and substitutions. The presence bulky group on monomer resulted in polymer possessing more-open morphology, which promoted reversible ionic transfer. We used an electrochemical quartz crystal microbalance cyclic voltammetry to investigate these polymers. found that both cations anions were involved charge compensation process. Furthermore, PXDOT...
Abstract A series of novel low‐bandgap triphenylamine‐based conjugated polymers ( PCAZCN , PPTZCN and PDTPCN ) consisting different electron‐rich donor main chains N ‐alkyl‐2,7‐carbazole, phenothiazine, cyclopentadithinopyrol, respectively) as well cyano‐ dicyano‐vinyl electron‐acceptor pendants were synthesized developed for polymer solar cell applications. The covered broad absorption spectra 400–800 nm with narrow optical bandgaps ranging 1.66–1.72 eV. highest occupied molecular orbital...
We have systematically studied the self-organization of poly(3-hexylthiophene) (P3HT), an electrochromic material, upon control solvent evaporation rate. characterized these polymer films using atomic force microscopy and X-ray diffraction measurements. Well-ordered P3HT structures were developed after annealing; highly crystalline exhibited enhanced contrast reduced resistance within film, leading to larger coloration efficiencies faster switching times. The optical (Δ%T), efficiency, time...
Two isomeric compounds (1 and 2) containing a dibenzo[f,h]thieno[3,4-b]quinoxaline core two peripheral arylamines were synthesized. Solution-processed bulk heterojunction (BHJ) solar cells based on these sensitizers [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) are reported. The cell fabricated from 1/67 wt % of PCBM exhibited high power conversion efficiency 1.70% an external quantum yield 55%. film the was found to have balanced electron hole mobility good morphology.
In this paper, we present evidence of balanced electron and hole transport in polymer-fullerene based solar cells by means embedded indium-tin-oxide nanoelectrodes. Enabled a controllable electrochemical deposition, the individual nanoelectrodes are uniformly enclosed poly(3,4-ethylenedioxythiophene) hole-conducting layer, allowing relatively short route for holes to reach anode hence increasing effective mobility. Consequently, power conversion efficiency photogenerated current maximized...