A5102817116- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- GaN-based semiconductor devices and materials
- Advanced ceramic materials synthesis
- Ga2O3 and related materials
- MXene and MAX Phase Materials
- Semiconductor materials and devices
- ZnO doping and properties
- Metal and Thin Film Mechanics
- Fiber-reinforced polymer composites
- Quantum Dots Synthesis And Properties
- Liquid Crystal Research Advancements
- Aerogels and thermal insulation
- Magnetic and transport properties of perovskites and related materials
- Molecular Junctions and Nanostructures
- Semiconductor materials and interfaces
- Crystallization and Solubility Studies
- Silicon Carbide Semiconductor Technologies
- Smart Agriculture and AI
- Semiconductor Quantum Structures and Devices
- X-ray Diffraction in Crystallography
- Nonlinear Dynamics and Pattern Formation
- Aluminum Alloys Composites Properties
- Carbon dioxide utilization in catalysis
Shanghai Polytechnic University
2023-2025
Northwest A&F University
2025
Donghua University
2017-2024
Jiangxi Normal University
2021-2024
Ministry of Agriculture and Rural Affairs
2024
Nanchang University
2021
Materials Science & Engineering
2019-2020
Kent State University
2012
Crystal Research (United States)
2009-2010
Fisk University
2006
Abstract The translation of unparalleled efficiency from the lab-scale devices to practical-scale flexible modules affords a huge performance loss for perovskite solar cells (PSCs). degradation is attributed brittleness and discrepancy crystal growth upon different substrates. Inspired by robust crystallization structure vertebrae, herein, we employ conductive glued polymer between indium tin oxide layers, which simultaneously facilitates oriented sticks devices. With results experimental...
Abstract Despite the rapid developments in all‐polymer solar cells (all‐PSCs) due to progress of polymerized small molecular acceptors (PSMA), effect linkage unit conjugation on polymer acceptor (P A ) is not well understood and P s with high efficiency, good stability, thickness‐insensitivity are rarely seen. Herein, two novel PSMAs, named PJTVT PJTET designed, by incorporating conjugated thienylene‐vinylene‐thienylene (TVT) unconjugated thienylene–ethyl–thienylene (TET) units,...
Reducing non-radiative recombination energy loss (ΔE3 ) is one key to boosting the efficiency of organic solar cells. Although recent studies have indicated that Y-series asymmetric acceptors-based devices featured relatively low ΔE3 , understanding mechanism derived from molecular structure change still lagging behind. Herein, two acceptors named BTP-Cl and BTP-2Cl with different terminals were synthesized make a clear comparative study symmetric acceptor BTP-0Cl. Our results suggest...
Terpolymerization and regioisomerization strategies are combined to develop novel polymer donors overcome the difficulty of improving organic solar cells (OSCs) performance. Two isomeric units, bis(2-hexyldecyl)-2,5-bis(4-chlorothiophen-2-yl)thieno[3,2-b]thiophene-3,6-dicarboxylate (TTO) bis(2-hexyldecyl) 2,5-bis(3-chlorothiophen-2-yl)thieno[3,2-b]thiophene-3,6-dicarboxylate (TTI), obtained incorporated into PM6 backbone via random copolymerization form a series terpolymers. Interestingly,...
Fluorine side chain functionalization of non-fullerene acceptors (NFAs) represents an effective strategy for enhancing the performance organic solar cells (OSCs). However, a knowledge gap persists regarding relationship between structural changes induced by fluorine and resultant impact on device performance. In this work, varying amounts atoms were introduced into outer chains Y-series NFAs to construct two named BTP-F0 BTP-F5. Theoretical experimental investigations reveal that side-chain...
Abstract Although a suitable vertical phase separation (VPS) morphology is essential for improving charge transport efficiency, reducing recombination, and ultimately boosting the efficiency of organic solar cells (OSCs), there lack theoretical guidance on how to achieve ideal morphology. Herein, relationship between molecular structure VPS pseudo‐planar heterojunction (PPHJ) OSCs established by using surface electrostatic potential (ESP) as bridge. The morphological evolution mechanism...
Abstract Achieving a more balanced charge transport by morphological control is crucial in reducing bimolecular and trap‐assisted recombination enhancing the critical parameters for efficient organic solar cells (OSCs). Hence, facile strategy proposed to reduce crystallinity difference between donor acceptor incorporating novel multifunctional liquid crystal small molecule (LCSM) BDTPF4‐C6 into binary blend. first LCSM based on tetrafluorobenzene unit features low phase transition...
A star-shaped nitrogen heterocyclic-ring acceptor TF1 featuring a unique 3D skeleton was successfully utilized to inhibit excessive molecular aggregation of Y6 improve the stability and performance organic solar cells.
This review summarizes the recent advances of computational chemistry in OSC research to provide a deeper insight into relationship between molecular structure and photoelectrical properties.
The excited state charge transfer (CT) characteristics of nonfullerene acceptors play an important role in determining the photo CT mechanisms and performance for organic solar cells (OSCs). Here, we systematically investigated structure–property relationship based on A–D–A A–DA′D–A type by density functional theory (DFT) time-dependent DFT (TD-DFT). Comparing to IT-4F DTPC-DFIC, acceptor Y6 exhibits distinct structural electronic characteristics, such as featuring larger Mulliken...
Abstract Homogeneity and stability of flexible perovskite solar cells (PSCs) are significant for the commercial feasibility in upscaling fabrication. Concretely, mismatching between bottom interface precursor ink can cause uncontrollable crystallization undesired dangling bonds during printing process. Herein, methylammonium acetate, serving as assistant (IAS) effectively avoid micron‐scale defects film. The situ optical microscope is applied to prove IAS inhibit colloidal aggregation induce...
Abstract Developing non‐fullerene acceptors (NFAs) with strong absorption and optical response in near‐infrared region (NIR) is an imperative avenue for achieving efficient organic solar cells (OSCs) NIR photodetectors (OPDs). Herein, four ultra‐narrow bandgap NFAs different alkyl side chains 2D fluorinated or non‐fluorinated phenyl substituents using dithienopyrrolecarbazole as electron‐rich core are designed synthesized photoelectric devices. The effect of central fluorination on molecular...
Abstract The ternary strategy has proven effective in enhancing the performance of organic solar cells (OSCs), yet identifying optimal third component remains a challenge due to lack theoretical frameworks for predicting its impact based on molecular structure. This study addresses this by proposing quantitative parameters derived from surface electrostatic potential (ESP) as criteria selecting components. asymmetric acceptor BTP‐OS, which exhibits lower total average ESP and larger...
Nonfused ring electron acceptors (NFREAs) have become a research hotspot of organic solar cells (OSCs) due to their facile synthesis. However, efficient NFREAs not only need maintain the advantages FREAs but also optimize molecular structure conjugate backbone achieve good planarity. Therefore, choosing appropriate building blocks is prerequisite for achieving OSCs. Here, two simple 2T2CSi-4F and 4T2CSi-4F, based on diester-thieno[3,2-b]thiophene (2T2C) as central core unit...
Abstract Achieving a more balanced charge transport by morphological control is crucial in reducing bimolecular and trap‐assisted recombination enhancing the critical parameters for efficient organic solar cells (OSCs). Hence, facile strategy proposed to reduce crystallinity difference between donor acceptor incorporating novel multifunctional liquid crystal small molecule (LCSM) BDTPF4‐C6 into binary blend. first LCSM based on tetrafluorobenzene unit features low phase transition...
The incorporation of volatile solid additives has emerged as an effective strategy for enhancing the performance organic solar cells (OSCs). However, influence electronic structure these on morphological evolution remains insufficiently understood. Herein, 1,4‐Dibromobenzene (DBB) and 1,4‐Difluoro‐2,5‐dibromobenzene (DFBB) are introduced into OSCs. Theoretical calculations indicate that DFBB a higher electrostatic potential extremum stronger σ‐holes interaction compared to DBB, enabling more...
Improving both the open-circuit voltage (VOC) and short-circuit current density (JSC) through development of photovoltaic materials to achieve high power conversion efficiency (PCE) is critical a significant challenge for organic solar cells (OSCs). Here, we designed novel dual-asymmetric acceptors A-SSe-TCF A-SSe-LSF by simultaneously asymmetrically regulating backbone terminal groups investigated their synergistic effects on performance in comparison with monoasymmetric acceptor A-SSe-4F....
ABSTRACT The employment of rationally designed functional group‐bearing molecules as additives to passivate perovskite defects has emerged a prevalent trend. Among the diverse array passivation materials, donor‐π‐acceptor (D‐π‐A) structured have attracted widespread attention due their unique ability simultaneously regulate electron donor and acceptor units, thereby promoting coordination with undercoordinated ions films. In this work, we introduce an indoline‐based D‐π‐A molecule (labeled...