A5017579936- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Organic Electronics and Photovoltaics
- Chalcogenide Semiconductor Thin Films
- Organic Light-Emitting Diodes Research
- Solid-state spectroscopy and crystallography
- Advanced Photocatalysis Techniques
- Organic and Molecular Conductors Research
- Covalent Organic Framework Applications
- Thin-Film Transistor Technologies
- TiO2 Photocatalysis and Solar Cells
- Molecular Junctions and Nanostructures
- Luminescence and Fluorescent Materials
- Click Chemistry and Applications
- Chemical Synthesis and Analysis
- Mass Spectrometry Techniques and Applications
- Advanced biosensing and bioanalysis techniques
- Radical Photochemical Reactions
- 2D Materials and Applications
- Fluorine in Organic Chemistry
- Photoreceptor and optogenetics research
- Silicon and Solar Cell Technologies
- solar cell performance optimization
- Nanowire Synthesis and Applications
Yunnan University
2018-2025
University of Basel
2023-2024
Kunming University
2019-2021
KTH Royal Institute of Technology
2015-2019
State Council of the People's Republic of China
2019
Molecular Devices
2015-2016
A low-cost spiro[fluorene-9,9′-xanthene]-based HTM termed <bold>X60</bold> showed high PCEs of 7.30% in ssDSCs and 19.84% PSCs under one sun, respectively.
Minimizing interfacial recombination loss in inverted perovskite solar cells is achieved by introducing piperazinium diiodide (PDI) as a surface modifier to passivate deep defects and adjust the interface band bending.
A feasible ligand riveting strategy for perovskite quantum dots (PQDs) is reported to substantially inhibit the lattice distortion and simultaneously efficiently passivate surface of PQDs PQD solar cells with an efficiency over 16.6%.
Abstract Surface passivation engineering of perovskite films via organic functional small molecules has emerged as an effective strategy for improving the efficiency and stability solar cells (PSCs). However, a systematic understanding underlying mechanisms behind these improvements is still missing. In this work, two new naphthalimide‐based (PX, X = F, I) are designed employed to efficiently passivate surface defects in PSCs. Consequently, superior photovoltaic properties PI‐treated PSCs...
Abstract The efficiency loss caused by area scaling is one of the key factors hindering industrial development perovskite solar cells. energy and contact issues in buried interface are main reasons. Here, a new self‐assembled monolayer (SAM), Ph‐4PACz, with large dipole moment (2.32 D) obtained . It found that Ph‐4PACz high polarity can improve band alignment minimize , resulting an open‐circuit voltage ( V oc ) as 1.2 for 1.55 eV perovskite. However, when applied to large‐area devices, fill...
Cesium-formamidinium lead iodide perovskite quantum dots (FAx Cs1-x PbI3 PQDs) show high potential for next-generation photovoltaics due to their outstanding optoelectronic properties. However, achieving composition-tunable hybrid PQDs with desirable charge transport remains a significant challenge. Herein, by leveraging an antisolvent-assisted in situ cation exchange of PQDs, homogeneous FAx controllable stoichiometries and surface ligand chemistry are realized. Meanwhile, the...
Abstract CsPbI 3 perovskite receives tremendous attention for photovoltaic applications due to its ideal band gap and good thermal stability. However, solar cells (PSCs) significantly suffer from photovoltage deficits because of serious interfacial energy losses within the PSCs, which a large extent affects performance PSCs. Herein, dipolar chemical bridge (DCB) is constructed between TiO 2 layers lower thus improve charge extraction The results reveal that DCB could form beneficial dipole...
Lead-free tin halide perovskite solar cells (TPSCs) have driven much research attention for their environmental friendliness. However, the low efficiency and large open-circuit voltage (Voc) deficit limit further development. Here, we introduced a π-conjugated Lewis base, 1H-pyrrolo[2,3-b]pyridin-6-ylaamine (1H6An), N donor unique electron-donating role of pyridine pyrrole with unpaired lone pair electrons to interact perovskites thus retard oxidation Sn2+ during aging process precursors....
Abstract Modulating perovskite crystallization and understanding hot carriers (HCs) dynamics in films are very critical to achieving high‐performance solar cells (PSCs). Herein, a small organic molecule (6BAS) with multisite anchors (C═O) as an efficient additive is introduced into PbI 2 precursors modulate during two‐step sequential deposition. The chemical interaction between 6BAS enables more preferential crystal enlarged interplanar spacing of lattice, which beneficial the penetration...
The phenoxazine-based acceptor–donor–acceptor structured small-molecule material M1 is used either as a hole-transport in (CH3NH3)PbI3-perovskite-based solar cells or photoactive donor bulk heterojunction organic cells. Excellent power conversion efficiencies of 13.2% and 6.9% are achieved these two types photovoltaic devices, respectively. As service to our authors readers, this journal provides supporting information supplied by the authors. Such materials peer reviewed may be re-organized...
Two D-A-D-structured hole-transport materials (YN1 and YN2) have been synthesized used in perovskite solar cells. The two HTMs low-lying HOMO levels impressive mobility. Perovskite-based cells (PSCs) fabricated with YN2 showed a power conversion efficiency (PCE) value of 19.27% ambient air, which is significantly higher than that Spiro-OMeTAD (17.80%). PSCs based on YN1 an inferior PCE 16.03%. We found the incorporation stronger electron-withdrawing group HTM improves PSCs. Furthermore,...
To develop new hole-transporting materials (HTMs) for efficient and stable perovskite solar cells (PSCs), 5,10,15,20-tetrakis{4-[N,N-di(4-methoxylphenyl)amino-phenyl]}-porphyrin was prepared in gram scale through the direct condensation of pyrrole 4-[bis(4-methoxyphenyl)amino]benzaldehyde. Its Zn(II) Cu(II) complexes exhibit excellent thermal electrochemical stability, specifically a high hole mobility very favorable energetics extraction that render them class HTMs organometallic halide...
An efficient cyclopenta[<italic>hi</italic>]aceanthrylene-based D–A–D type dopant-free hole transport material termed <bold>YN3</bold> showed impressive PCEs of 18.84% and 12.05% with very good stability in organic–inorganic hybrid all-inorganic perovskite solar cells, respectively.
Two Ag-based metal organic complexes (<bold>HA1</bold>and<bold>HA2</bold>) are employed as a new class of dopant-free HTMs for the application in PSCs. The cell based on<bold>HA1</bold>achieved high PCE 11.98% under air conditions, which is comparable to employing doped spiro-MeOTAD (12.27%) same conditions.
This study presents new hole-transport materials (HTMs) to replace the central spiro linkage in spiro-OMeTAD by a CC bond H11 and CC double H12. structural change results facile synthetic process significant molecular geometry. Employing as HTM combination with mixed ion perovskite [HC(NH2)2]0.85(CH3NH3)0.15Pb(I0.85Br0.15)3, gives solar cell power conversion efficiency of 19.8%. As service our authors readers, this journal provides supporting information supplied authors. Such are peer...
Minimizing the interfacial defects and improving charge transferability of charge-transfer layers have become most important strategies to boost efficiency stability perovskite solar cells. However, molecular passivators currently employed alleviate generate poorly conductive aggregates at interfaces, hindering extraction carriers. Here, a holistic interface engineering strategy employing highly crystalline small molecule 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) is...
Lithium bis(trifluoromethanesulfonyl)imide (Li-TFSI) additive is widely employed to improve the hole mobility of hole-transporting layer (HTL) in perovskite solar cells (PSCs). However, hygroscopic nature Li-TFSI not beneficial long-term stability PSCs. Herein, a new more water-resistant Li-PFSI used replace Li-TFSI. As result, best power conversion efficiency (PCE) 22.14% achieved for Li-PFSI-treated PSCs, exceeding that control cell with (20.25%). Importantly, Li-PFSI-based shows...