A5076205771- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Surface Modification and Superhydrophobicity
- Thin-Film Transistor Technologies
- Industrial Technology and Control Systems
- Quantum Dots Synthesis And Properties
- Nanofabrication and Lithography Techniques
- Chalcogenide Semiconductor Thin Films
Korea Advanced Institute of Science and Technology
2022-2024
Korea Research Institute of Chemical Technology
2024
Lawrence Berkeley National Laboratory
2024
Abstract Owing to their simple chemical structures and straightforward synthesis, poly(thiophene vinylene) (PTV) derivatives are promising types of polymer donors for organic solar cells (OSCs). However, the structural rigidity PTVs results in formation films with poor mechanical properties, which limits application intrinsically stretchable (IS)‐OSCs. Here, new carboxylate‐containing developed tuned molecular weight (MW) (PETTCVT‐X, X = L, M, H) realize efficient mechanically durable...
Abstract High power conversion efficiency (PCE) and mechanical robustness are prerequisites for wearable applications of organic solar cells (OSCs). However, stretchability present active systems (i.e., crack‐onset strain (COS) < 30%) should be improved. While introducing elastomers into is considered a simple method improving stretchability, the inclusion typically results in decrease PCE OSC with limited enhancement due to lack interconnected electrical pathways. In this study, it...
Abstract Although polymer solar cells (PSCs) have shown considerable power conversion efficiency (PCE) potential, their poor operational stability is a major obstacle for future commercialization. In this study, the ternary‐blend strategy based on D1–A–D1–D2‐type conjugated random terpolymers containing hydrogen–bonding sites employed to simultaneously improve device and long‐term stability. Notably, PM6‐ThEG:PM6‐ThOH:Y6‐BO system exhibits remarkable PCE of 17.2% with superior photo,...
Organic solar cells (OSCs) based on conjugated block copolymers (CBCs) have gained considerable attention owing to their simple one-pot solution process. However, power conversion efficiencies (PCEs) require significant improvement. Furthermore, the majority of efficient CBC-based OSCs are processed using environmentally toxic halogenated solvents. Herein, we develop a new CBC (PBDB-T-b-PY5BDT) and demonstrate stable achieved by halogen-free We design (D1-A1)-b-(D1-A2)-type that shares same...
Designing conjugated polymers with both excellent electrical properties and mechanical robustness is a prerequisite for their application in wearable portable electronics. However, many of the efficient are mechanically brittle due to strong semicrystallinity, only limited amorphous parts contribute overall tensile properties. Here, we have incorporated monomers hydrogen bonding (H-bonding) functionalized side chains (Qx-thymine T-diaminopyrimidine) into backbone naphthalene diimide-based...
Lead sulfide (PbS) colloidal quantum dots (CQDs) are promising materials for next-generation flexible solar cells because of near-infrared absorption, facile bandgap tunability, and superior air stability. However, CQD devices still lack enough flexibility to be applied wearable owing the poor mechanical properties films. In this study, a approach is proposed improve stability CQDs without compromising high power conversion efficiency (PCE) devices. (3-aminopropyl)triethoxysilane (APTS)...
Organic solar cells (OSCs) with a high power conversion efficiency (PCE) and excellent stretchability are required for applications in wearable devices. However, the use of rigid highly crystalline small-molecule acceptors (SMAs) limits mechanical robustness OSCs. To overcome this limitation, stretchable conjugated polymer acceptor (PA, N2200-ThyDap) was synthesized introduced as third component to benchmark donor (PD):SMA system PM6:Y6-BO. N2200-ThyDap designed incorporate hydrogen bonding...
In order to shield perovskite solar cells (PSCs) from extrinsic degradation factors and ensure long-term stability, effective encapsulation technology is indispensable. Here, a facile process developed create glass–glass encapsulated semitransparent PSC using thermocompression bonding. From quantifying the interfacial adhesion energy considering power conversion efficiency of devices, it confirmed that bonding between layers formed on hole transport layer (HTL)/indium-doped tin oxide (ITO)...
The development of elastomer-containing photoactive block copolymers with regulated rigid-block lengths results in organic solar cells high power conversion efficiency (17.3%) and mechanical robustness (toughness = 1.8 MJ m −3 ).
Abstract The fragile nature of ultrathin polymer films poses a challenge for precise mechanical property measurements in free‐standing state, despite their critical importance the fabrication and performance advanced electronic devices under thermal loading. Here, novel high‐temperature tensile testing method using film on heated liquid (FOHL) platform is proposed. Glycerol chosen thermally stable its high surface tension, boiling point, miscibility with water, chemical stability. A defect...