A5089986541- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Perovskite Materials and Applications
- Nanowire Synthesis and Applications
- Molecular Junctions and Nanostructures
- Quantum Dots Synthesis And Properties
- Advanced Electron Microscopy Techniques and Applications
- Fullerene Chemistry and Applications
- RFID technology advancements
- Advanced Sensor and Energy Harvesting Materials
- Nanomaterials and Printing Technologies
- Organic Light-Emitting Diodes Research
- Modular Robots and Swarm Intelligence
- Electrowetting and Microfluidic Technologies
- Silicon and Solar Cell Technologies
- Force Microscopy Techniques and Applications
- Drug Solubulity and Delivery Systems
- solar cell performance optimization
- Boron and Carbon Nanomaterials Research
- Solar-Powered Water Purification Methods
- Photonic and Optical Devices
- Electrospun Nanofibers in Biomedical Applications
- Experimental and Theoretical Physics Studies
- Pharmacology and Obesity Treatment
Zhejiang University
2019-2020
State Key Laboratory of Silicon Materials
2019-2020
Hangzhou Xixi hospital
2019-2020
University of Newcastle Australia
2016-2019
Callaghan Innovation
2016-2019
Technical University of Denmark
2010-2016
Roskilde Sygehus
2015-2016
Organic Research Centre
2016
ETH Zurich
2009
Inline printing and coating methods have been demonstrated to enable a high technical yield of fully roll-to-roll processed polymer tandem solar cell modules. We demonstrate generality by employing different material sets also describe how the ink systems must be carefully co-developed in order reach ambitious objective printed coated 14-layer flexible stack. The methodologies involved are flexographic printing, rotary screen slot-die coating, X-ray scattering, electrical testing...
Aqueous nanoparticle dispersions of a series three low-band-gap polymers poly[4,8-bis(2-ethylhexyloxy)benzo(1,2-b:4,5-b′)dithiophene-alt-5,6-bis(octyloxy)-4,7-di(thiophen-2-yl)(2,1,3-benzothiadiazole)-5,5′-diyl] (P1), poly[(4,4′-bis(2-ethylhexyl)dithieno[3,2-b:2′,3′-d]silole)-2,6-diyl-alt-(2,1,3-benzothiadiazole)-4,7-diyl] (P2), and poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl] (P3) were prepared using ultrasonic treatment chloroform solution the polymer...
Silver nanowires (AgNWs) and zinc oxide (ZnO) are deposited on flexible substrates using fast roll‐to‐roll (R2R) processing. The AgNW film polyethylene terephthalate (PET) shows >80% uniform optical transmission in the range of 550–900 nm. This electrode is compared to previously reported currently widely produced indium‐tin‐oxide (ITO) replacement comprising (PET)|silver grid|poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)|ZnO known as Flextrode. AgNW/ZnO higher than...
Large area, fullerene-free organic solar cells with improved stability and efficiency of up to 1% are fabricated by the roll-coating process on indium tin oxide free flexible substrates, under ambient conditions. The cell is one best candidates for clean energy sustainable development. Especially, bulk heterojunction (BHJ) (OSCs) promising because some advantages, such as simple preparation, low cost, light weight, large area fabrication. This has been focus research in past decade.1-6...
Abstract The simultaneous achievement of a low energy loss and high external quantum efficiency (EQE) response is the prerequisite for power conversion efficiencies organic solar cells (OSCs). Herein, this issue examined through design two novel near‐infrared (NIR) nonfullerene acceptors (X‐PCIC X1‐PCIC) with an absorption extending to 900 nm, which realized by using benzobis(thiazole) unit as core. This study reveals that quinoid‐resonance effect electron‐withdrawing property good building...
Abstract 2D perovskites with alternating cations in the interlayer space (ACI) have raised increasing interest field of layered perovskite solar cells (PVSCs). Herein, ACI quasi‐2D PVSCs a chemical formula C(NH 2 ) 3 (CH NH 4 Pb I 13 ( n = 4) are fabricated by an antisolvent method assisted novel two‐step post‐treatment process, which guanidinium thiocyanate (GASCN) and MACl (GA guanidinium, MA methylammonium) utilized as reagents, sequentially. With first‐step GASCN, grain gaps within films...
All solution-processed roll-to-roll flexible solar cells based on a star-shaped small molecule donor and PCBM acceptor were fabricated by slot-die coating, as the first successful example reported for cells.
The realization of a complete tandem polymer solar cell under ambient conditions using only printing and coating methods on flexible substrate results in fully scalable process but also requires accurate control during layer formation to succeed. serial where the layers are added one after other by wet processing leaves plenty room for error development calls an analytical technique that enables 3D reconstruction stack with possibility probe thickness, density, chemistry individual stack....
Formamide and PCP-Na are combined to simultaneously increase <italic>J</italic><sub>sc</sub> <italic>V</italic><sub>oc</sub>, resulting in a PCE of 15.86%.
All solution-processed flexible large area small molecule bulk heterojunction solar cells were fabricated via roll-coating technology. Our devices produced from slot-die coating on a lab-scale mini roll-coater under ambient conditions without the use of spin-coating or vacuum evaporation methods. Four diketopyrrolopyrrole based molecules (SMs 1–4) utilized as electron donors with (6,6)-phenyl-C61-butyric acid methyl ester an acceptor and their photovoltaic performances roll-coated...
Solution processable semiconductor oxides have opened a new paradigm for the enhancement of lifetime thin film solar cells. Their fabrication by low-cost and environmentally friendly solution-processable methods makes them ideal barrier (hole electron) transport layers. In this work, we fabricate flexible ITO-free organic cells (OPV) printing applying an aqueous solution-processed V2O5 as hole layer (HTL) compared to devices PEDOT:PSS. The transparent conducting electrode was...
The synthesis and performance of a cost-effective mixed fullerene at the 100+ g scale with reaction yield 85% is demonstrated.
Although benzoazole‐fused rings with strong quinoid character have successfully been used to construct high‐performance small‐molecule non‐fullerene acceptors (NFAs), studies into how these units influence the stabilities of NFAs and their corresponding device performances are few date. To address it, four new NFAs, SSTI, SNTI, NTI NTTI, which adopt BBT, TBZ, BTAZ as cores, respectively, designed investigated. It is found that SSTI SNTI based on BBT TBZ cores stronger resonance effects show...
All-polymer and polymer/fullerene inverted solar cells were fabricated by spin-coating roll-coating processes. The spin-coated small-area (0.04 cm2) devices on indium tin oxide (ITO) coated glass substrates in nitrogen. roll-coated large-area (1.0 prepared ITO-free flexible under ambient conditions. use of a solvent additive, 1,8-diiodooctane (DIO), facilitated phase separation enhanced power conversion efficiencies (PCEs). PCE increased from 4.58% to 8.12% with 2.5% (v/v) DIO when using the...
The effect of twelve different additives on organic solar cells with an active layer based poly-3-hexylthiophene (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) has been studied in this work tested for suitability roll-to-roll slot-die coating. Three the increased cell efficiency while rest showed no or a negative influence coatability. In cases where additive caused increase performance relation to surface topography structure was investigated using Atomic Force Microscopy (AFM),...
By studying water dispersible photoactive nanoparticles used for organic photovoltaic devices, we provide new insights into the internal structure, crystallinity and previously unreported drastic changes that occur when particles are cast a film.
GA<sup>+</sup> with solvation effect assisted high-quality 2D perovskite film thickness over 500 nm reached a PCE of 16.26%.
The ternary blend strategy has shown great potential to improve the photovoltaic performance of organic solar cells (OSCs). Usually, adopting two acceptors with similar chemical structures shows good compatibility but limited enhancement in performance, whereas different always a compositional sensitivity issue. Herein, highly efficient OSC an enhanced fill factor (FF) and broad tolerance is demonstrated by introducing fused‐ring acceptor IT‐M binary based on unfused‐core HC‐PCIC polymer...
RFID technology tracks the flow of physical items and goods in supply chains to help users detect inefficiencies, such as shipment delays, theft, or inventory problems. An inevitable consequence, however, is that it generates huge numbers events. To exploit these large amounts data, chain visualizer increases supply-chain visibility by analyzing using a mix automated analysis techniques human effort. The tool's core concepts include rule-based map-based representation interface. With...