Jiaonan Sun
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View article: Alkylammonium Salt as Additives to Expand the Processing Window of Wide‐Bandgap Perovskite Solar Cells Made in Ambient Air
Alkylammonium Salt as Additives to Expand the Processing Window of Wide‐Bandgap Perovskite Solar Cells Made in Ambient Air Open
Wide‐bandgap (WBG) perovskites are critical for advancing tandem solar cell technology, yet their fabrication remains constrained by narrow processing windows and environmental instability. A synergistic alkylammonium salt additive strateg…
View article: A Pyrrole Modified 3,4‐Propylenedioxythiophene Conjugated Polymer as Hole Transport Layer for Efficient and Stable Perovskite Solar Cells
A Pyrrole Modified 3,4‐Propylenedioxythiophene Conjugated Polymer as Hole Transport Layer for Efficient and Stable Perovskite Solar Cells Open
Despite the outstanding electric properties and cost‐effectiveness of poly(3,4‐ethylenedioxythiophene) (PEDOT) and its derivatives, their performance as hole transport layer (HTL) materials in conventional perovskite solar cells (PSCs) has…
View article: Mechanical and Ionic Characterization for Organic Semiconductor‐Incorporated Perovskites for Stable 2D/3D Heterostructure Perovskite Solar Cells
Mechanical and Ionic Characterization for Organic Semiconductor‐Incorporated Perovskites for Stable 2D/3D Heterostructure Perovskite Solar Cells Open
Hybrid metal halide perovskite (MHP) materials, while being promising for photovoltaic technology, also encounter challenges related to material stability. Combining 2D MHPs with 3D MHPs offers a viable solution, yet there is a gap in the …
View article: Triplet Management at Ligand-Perovskite Interface to Enhanced Photovoltaics Performance
Triplet Management at Ligand-Perovskite Interface to Enhanced Photovoltaics Performance Open
Aromatic organic molecules are widely used as passivators in perovskite solar cells (PSCs). Efforts have been devoted to improving the energy alignments, band edge states, and defect passivation functionalities. However, potential energy l…
View article: Advances and challenges in molecular engineering of 2D/3D perovskite heterostructures
Advances and challenges in molecular engineering of 2D/3D perovskite heterostructures Open
Advances in the understanding and applications of perovskite 2D/3D heterostructures were overviewed with a focus on ligand design principles.
View article: Emerging Two-Dimensional Organic Semiconductor-Incorporated Perovskites─A Fascinating Family of Hybrid Electronic Materials
Emerging Two-Dimensional Organic Semiconductor-Incorporated Perovskites─A Fascinating Family of Hybrid Electronic Materials Open
Halide perovskites have attracted a great amount of attention owing to their unique materials chemistry, excellent electronic properties, and low-cost manufacturing. Two-dimensional (2D) halide perovskites, originating from three-dimension…
View article: Two-Factor Phase Separations in Mixed-Halide Quasi-2D Perovskite LEDs: Dimensionality and Halide Segregations
Two-Factor Phase Separations in Mixed-Halide Quasi-2D Perovskite LEDs: Dimensionality and Halide Segregations Open
Quasi-2D halide perovskites have attracted much interest as a promising material for light-emitting diodes (LEDs) due to their tunability in quantum confinement and halide alloy formation to modulate the energy bandgap and emission color. …
View article: Reduced Energetic Disorders in Dion–Jacobson Perovskites for Efficient and Spectral Stable Blue LEDs
Reduced Energetic Disorders in Dion–Jacobson Perovskites for Efficient and Spectral Stable Blue LEDs Open
Metal halide perovskites have witnessed great success in green, red, and near‐infrared light‐emitting diodes (LEDs), yet blue LEDs still lag behind. Reducing undesired energetic disorders – broad n ‐phases and halide segregation – is consi…
View article: Unraveling the Effect of Stacking Configurations on Charge Transfer in WS<sub>2</sub> and Organic Semiconductor Heterojunctions
Unraveling the Effect of Stacking Configurations on Charge Transfer in WS<sub>2</sub> and Organic Semiconductor Heterojunctions Open
Photoinduced interfacial charge transfer plays a critical role in energy conversion involving van der Waals (vdW) heterostructures constructed of inorganic nanostructures and organic materials. However, the effect of molecular stacking con…
View article: Design Rules for Two‐Dimensional Organic Semiconductor‐Incorporated Perovskites (OSiP) Gleaned from Thousands of Simulated Structures**
Design Rules for Two‐Dimensional Organic Semiconductor‐Incorporated Perovskites (OSiP) Gleaned from Thousands of Simulated Structures** Open
Two‐dimensional (2D) halide perovskites are an attractive class of hybrid perovskites that have additional optoelectronic tunability due to their accommodation of relatively large organic ligands. Nevertheless, contemporary ligand design d…
View article: Design Rules for Two‐Dimensional Organic Semiconductor‐Incorporated Perovskites (OSiP) Gleaned from Thousands of Simulated Structures**
Design Rules for Two‐Dimensional Organic Semiconductor‐Incorporated Perovskites (OSiP) Gleaned from Thousands of Simulated Structures** Open
Two‐dimensional (2D) halide perovskites are an attractive class of hybrid perovskites that have additional optoelectronic tunability due to their accommodation of relatively large organic ligands. Nevertheless, contemporary ligand design d…
View article: Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells
Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells Open
Constructing two-dimensional (2D) perovskite atop of 3D with energy landscape management is still a challenge in perovskite photovoltaics. Here, we report a strategy through designing a series of π-conjugated organic cations to construct s…
View article: Design Rules for Two-Dimensional Organic Semiconductor-Incorporated Perovskites (OSiP) Gleaned from Thousands of Simulated Structures
Design Rules for Two-Dimensional Organic Semiconductor-Incorporated Perovskites (OSiP) Gleaned from Thousands of Simulated Structures Open
Organic-inorganic hybrid perovskite semiconductors are under investigation for many applications owing to their excellent optoelectronic properties and relatively simple processing. Two-dimensional (2D) halide perovskites are an attractive…
View article: Tailoring Molecular‐Scale Contact at the Perovskite/Polymeric Hole‐Transporting Material Interface for Efficient Solar Cells
Tailoring Molecular‐Scale Contact at the Perovskite/Polymeric Hole‐Transporting Material Interface for Efficient Solar Cells Open
Perovskite solar cells (PSCs) have delivered a power conversion efficiency (PCE) of more than 25% and incorporating polymers as hole‐transporting layers (HTLs) can further enhance the stability of devices toward the goal of commercializati…
View article: Amine-Thiol/Selenol Chemistry for Efficient and Stable Perovskite Solar Cells
Amine-Thiol/Selenol Chemistry for Efficient and Stable Perovskite Solar Cells Open
Controlling the crystallization of perovskites is imperative to reduce defect densities in perovskite thin films and extend device lifetimes. In this work, combinations of amine and chalcogenide ligands were introduced in the sequential de…
View article: Phase Transfer‐Mediated Degradation of Ether‐Based Localized High‐Concentration Electrolytes in Alkali Metal Batteries
Phase Transfer‐Mediated Degradation of Ether‐Based Localized High‐Concentration Electrolytes in Alkali Metal Batteries Open
Localized high‐concentration electrolytes (LHCEs) have attracted interest in alkali metal batteries due to the advantages of forming stable solid‐electrolyte interphases (SEIs) on anodes and good chemical/electrochemical stability. Herein,…
View article: Phase Transfer‐Mediated Degradation of Ether‐Based Localized High‐Concentration Electrolytes in Alkali Metal Batteries
Phase Transfer‐Mediated Degradation of Ether‐Based Localized High‐Concentration Electrolytes in Alkali Metal Batteries Open
Localized high‐concentration electrolytes (LHCEs) have attracted interest in alkali metal batteries due to the advantages of forming stable solid‐electrolyte interphases (SEIs) on anodes and good chemical/electrochemical stability. Herein,…
View article: A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction
A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction Open
Perchlorate (ClO4-) is a pervasive, harmful, and inert anion on both Earth and Mars. Current technologies for ClO4- reduction entail either harsh conditions or multicomponent enzymatic processes. Herein, we report a heterogeneous (L)Mo-Pd/…
View article: Dirhodium(II,II)/NiO Photocathode for Photoelectrocatalytic Hydrogen Evolution with Red Light
Dirhodium(II,II)/NiO Photocathode for Photoelectrocatalytic Hydrogen Evolution with Red Light Open
A new Rh2(II,II) dimer has been synthesized and anchored onto a NiO photocathode. The dirhodium complex acts as both the sensitizer to inject holes into NiO and as catalyst for the production of hydrogen. The single-molecule design circumv…
View article: A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction
A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction Open
The detection of perchlorate (ClO 4 − ) on and beyond Earth requires ClO 4 − reduction technologies to support water purification and space exploration. However, the reduction of ClO 4 − usually entails either harsh conditions or multi-com…
View article: A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction
A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction Open
The detection of perchlorate (ClO4−) on and beyond Earth requires ClO4− reduction technologies to support water purification and space exploration. However, the reduction of ClO4− usually entails either harsh conditions or multi-component …
View article: Ambient Pressure X-ray Photoelectron Spectroscopy Investigation of Thermally Stable Halide Perovskite Solar Cells via Post-Treatment
Ambient Pressure X-ray Photoelectron Spectroscopy Investigation of Thermally Stable Halide Perovskite Solar Cells via Post-Treatment Open
Long-term thermal stability is one limiting factor that impedes the commercialization of the perovskite solar cell. Inspired by our prior results from machine learning, we discover that coating a thin layer of 4,4'-dibromotriphenylamine (D…
View article: Anthraquinone Redox Relay for Dye‐Sensitized Photo‐electrochemical H<sub>2</sub>O<sub>2</sub> Production
Anthraquinone Redox Relay for Dye‐Sensitized Photo‐electrochemical H<sub>2</sub>O<sub>2</sub> Production Open
Anthraquinone (AQ) redox mediators are introduced to metal‐free organic dye sensitized photo‐electrochemical cells (DSPECs) for the generation of H 2 O 2 . Instead of directly reducing O 2 to produce H 2 O 2 , visible‐light‐driven AQ reduc…
View article: Anthraquinone Redox Relay for Dye‐Sensitized Photo‐electrochemical H<sub>2</sub>O<sub>2</sub> Production
Anthraquinone Redox Relay for Dye‐Sensitized Photo‐electrochemical H<sub>2</sub>O<sub>2</sub> Production Open
Anthraquinone (AQ) redox mediators are introduced to metal‐free organic dye sensitized photo‐electrochemical cells (DSPECs) for the generation of H 2 O 2 . Instead of directly reducing O 2 to produce H 2 O 2 , visible‐light‐driven AQ reduc…
View article: Dye-sensitized photocathodes for oxygen reduction: efficient H<sub>2</sub>O<sub>2</sub> production and aprotic redox reactions
Dye-sensitized photocathodes for oxygen reduction: efficient H<sub>2</sub>O<sub>2</sub> production and aprotic redox reactions Open
Efficient dye sensitized photocathode for oxygen reduction reaction with high current density in both aqueous and aprotic electrolyte.