A5002517868- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Sulfur-Based Synthesis Techniques
- Synthesis and Catalytic Reactions
- Catalytic C–H Functionalization Methods
- Advanced Polymer Synthesis and Characterization
- Semiconductor materials and interfaces
- Nanoparticle-Based Drug Delivery
- biodegradable polymer synthesis and properties
- Crystallization and Solubility Studies
- Organic Light-Emitting Diodes Research
- Analytical Chemistry and Sensors
- X-ray Diffraction in Crystallography
The University of Texas at Dallas
2018-2025
Pyrrolic units have been utilized as building blocks for organic semiconducting small molecules and polymers in the recent past. Even though pyrrole-based materials shown promising properties, they challenging due to their lower stability under ambient conditions. In this study, we synthesized two pyrrole-fused moieties: 1H-indole (IN) pyrrolo[2,3-b] pyridine (PPy), which were then explored potential effective donor moieties materials. Each block was employed synthesize...
A block copolymer with discotic liquid crystalline behavior was synthesized using Grignard metathesis polymerization (GRIM) and initiators for continuous activator regeneration atom transfer radical (ICAR-ATRP). novel mesogen, 6-(pyren-1-yloxy)hexyl methacrylate (PyMA), comprises a that is attached to regioregular poly(3-hexylthiophene) (rr-P3HT) generated by GRIM subjected end-group modification. Due the of Cu+ in reaction mixture ICAR-ATRP compared conventional methods, synthesis...
Abstract The self‐assembly of functionalized polycaprolactone amphiphilic diblock copolymers is explored for carrier‐mediated doxorubicin delivery cancer treatment. In this report, polycaprolactone‐based block with controlled branching architecture are investigated. Star‐like copolymers, namely 4‐arm and 6‐arm poly(γ‐benzyloxy‐ε‐caprolactone)‐ b ‐poly{γ‐2‐[2‐(2‐methoxyethoxy)ethoxy]ethoxy‐ε‐caprolactone} (PBCL‐ ‐PMEEECL) were synthesized by living ring‐opening copolymerization (ROP)...
A group of chalcogenopheno[3,2-b]pyrroles, including thieno[3,2-b]pyrrole (TP), furo[3,2-b]pyrrole (FP), and selenopheno[3,2-b]pyrrole (SeP), thieno[3,2-b]thiophene (TT) electron-donating units were coupled with a thiophene-flanked diketopyrrolo[3,4-c]pyrrole (ThDPP) acceptor to generate four donor-acceptor-donor (D-A-D) semiconducting small molecules (ThDPP-TT, ThDPP-FP, ThDPP-TP, ThDPP-SeP). This study systematically investigated the differences between chalcogenopheno[3,2-b]pyrroles TT....
Incorporating selenophene into organic semiconductors has recently shown promising results in both solar cells (OSCs) and field-effect transistors (OFETs). In most studies, replacing thiophene with improved the performance OSCs OFETs. However, some other reports do not show same trend. Therefore, structure–property relationship of selenophene-containing semiconducting materials is still to be investigated understood. On hand, have that flanked benzothiadiazole- thieno[3,2-b]pyrrole-based...
The structural alteration of semiconducting polymer backbones can improve the optoelectronic properties organic semiconductors and enhance field-effect mobilities. In our efforts towards improving performance transistors (OFETs), we are reporting a donor–acceptor containing thieno[3,2-b]pyrrole (TP) donor furan-flanked diketopyrrolopyrrole (DPP) electron acceptor, which yielded an asymmetric poly(methylthienopyrrolo)furanyl)diketopyrrolopyrrol) P(FDPP-TP) polymer. introduction furan spacer...
ABSTRACT Side chain engineering has been used for tuning the opto‐electronic properties of organic semiconductors. In this work, a series pyrimidine‐based donor‐acceptor (D‐A) conjugated polymers functionalized with electron‐withdrawing or electron‐donating side chains were synthesized. The pyrimidine D‐A investigated focusing on dependence electron withdrawing strength acceptor moiety, while maintaining same donor moiety. Fine‐tuning energy levels was achieved by introducing donating...
ABSTRACT Synthesis of two conducting polymers containing 3‐hexylthiophene and 3‐[2‐(2‐(2‐methoxyethoxy)ethoxy)ethoxy]thiophene is demonstrated. In thin‐film transistors, the high‐molecular‐weight polymer shows an average mobility 4.2 × 10 −4 cm 2 V −1 s . Most importantly, have high conductivity upon doping with iodine also stability in doped state conductivities measured even after 1 month. Furthermore, causes transparency to thin films are resistant common organic solvents. All these...
Thieno[3,2-b]pyrrole (TP) is a donor moiety employed in organic semiconducting small molecules and polymers. Among the TP-containing reported, benzo[c][1,2,5]thiadiazole (BT) acceptor-based donor–acceptor (DA) type have shown mobilities of ∼0.1 cm2 V–1 s–1. In this study, we are reporting synthesis, characterization, testing field-effect transistor (OFET) performance two donor–acceptor–donor (DAD) with TP donors siloxane-functionalized diketopyrrolopyrrole (DPP) acceptors, namely, diethyl...
Direct C–H bond arylation is a highly effective method for synthesizing arylated heteroaromatics. This reduces the number of synthetic steps and minimizes formation impurities. We report an air- moisture-stable iminopyridine-based α-diimine nickel(II) complex direct C5–H thiazole derivatives. Under low catalyst loading performing reactions at lower temperatures (80 °C) under aerobic conditions, we produced mono- diarylated units. Competition experiments density functional theory calculations...
Direct C−H bond arylation is a highly effective method for synthesizing arylated heteroaromatics. This reduces synthetic steps and minimizes the formation of impurities. We report an air moisture-stable iminopyridine-based α-diimine nickel (II) complex direct C5-H thiazole derivatives. Under low catalyst loading performing reactions at lower temperatures (80 °C) under aerobic conditions, we produced mono- diarylated units. Competition experiments density functional theory calculations (DFT)...
Direct C−H bond arylation is a highly effective method for synthesizing arylated heteroaromatics. This reduces synthetic steps and minimizes the formation of impurities. We report an air moisture-stable iminopyridine-based α-diimine nickel (II) complex direct C5-H thiazole derivatives. Under low catalyst loading performing reactions at lower temperatures (80 °C) under aerobic conditions, we produced mono- diarylated units. Competition experiments density functional theory calculations (DFT)...