Explanipedia

Flexible and Efficient Semi-Empirical DFTB Parameters for Electronic Structure Prediction of 3D, 2D Iodide Perovskites and Heterostructures Open

Junke Jiang, Tammo van der Heide, Simon Thébaud, Carlos R. Lien-Medrano, Arnaud Fihey , et al. · 2024

Density Functional Tight-Binding (DFTB), an approximative approach derived from Density Functional Theory (DFT), has the potential to pave the way for simulations of large periodic or non-periodic systems. We have specifically tailored DFT…

Electronic Coupling Between Perovskite Nanocrystal and Fullerene Modulates Hot Carrier Capture Open

Yusheng Li, Junke Jiang, Dandan Wang, Dong Liu, Shota Yajima , et al. · 2024

The efficient harnessing of hot carriers holds transformative potential for next‐generation optoelectronic devices. Halide perovskites, with their remarkably long carrier lifetimes exceeding 10 picoseconds, stand at the forefront of this r…

On–Off Switching of Singlet Self‐Trapped Exciton Emission Endows Antimony‐Doped Indium Halides with Excitation‐Wavelength‐Dependent Luminescence Open

Xinyu Yang, Hongyuan Zhao, Ziying Wen, Yunfei Bai, Qichao Meng , et al. · 2024

Excitation‐wavelength‐dependent (Ex‐De) emitters are a fascinating category of luminescent materials whose emission properties vary with the wavelength of the light used for excitation. Antimony (Sb 3+ )‐doped indium (In)‐based metal halid…

Organic‐Inorganic Hybrid Cuprous‐Based Metal Halides with Unique Two‐Dimensional Crystal Structure for White Light‐Emitting Diodes Open

Xuan Meng, Junke Jiang, Xinyu Yang, Hongyuan Zhao, Qichao Meng , et al. · 2024

Ternary cuprous (Cu + )‐based metal halides, represented by cesium copper iodide (e.g., CsCu 2 I 3 and Cs 3 Cu 2 I 5 ), are garnering increasing interest for light‐emitting applications owing to their intrinsically high photoluminescence q…

From Dopant to Host: Solution Synthesis and Light‐Emitting Applications of Organic‐Inorganic Lanthanide‐Based Metal Halides Open

Tianxin Bai, Qiujie Wang, Yunfei Bai, Qichao Meng, Hongyuan Zhao , et al. · 2024

From Dopant to Host: Solution Synthesis and Light‐Emitting Applications of Organic‐Inorganic Lanthanide‐Based Metal Halides Open

Tianxin Bai, Qiujie Wang, Yunfei Bai, Qichao Meng, Hongyuan Zhao , et al. · 2024

The rich and unique energy level structure arising from 4f n inner shell configuration of trivalent lanthanide ions (Ln 3+ ) renders them highly attractive for light‐emitting applications. Currently, research primarily focuses on Ln 3+ dop…

Adsorption and reversible detection of toxic halogens gases at room temperature by two-dimensional Al2SSe for occupational sustainability Open

Yee Hui Robin Chang, Keat Hoe Yeoh, Junke Jiang, Hung Wei Yu, Edward Yi Chang , et al. · 2024

Current treatment for inhalational halogens poisoning involves providing supportive care, which includes administering humidified oxygen and managing the airway. Since toxic effects of halogens cannot be reversed, sensors with high sensiti…

Highly Luminescent Phase-Stable Hybrid Manganese Halides for Efficient X-ray Imaging Open

Sujun Ji, Yihang Liu, Yulong Wang, Hongyuan Zhao, Qiujie Wang , et al. · 2024

Mn(II)-based organic-inorganic hybrid metal halides have garnered considerable attention for their potential use in X-ray imaging due to their cost-effective solution processability and remarkable radioluminescence efficiency. However, ach…

The Role of the Organic Cation in Developing Efficient Green Perovskite LEDs Based on Quasi‐2D Perovskite Heterostructures Open

Alexandra J. Ramadan, Woo Hyeon Jeong, Robert D. J. Oliver, Junke Jiang, Akash Dasgupta , et al. · 2023

Two dimensional/three‐dimensional (2D/3D) metal halide perovskite heterostructures have attracted great interest in photovoltaic and light‐emitting diode (LEDs) applications. In both, their implementation results in an improvement in devic…

Scale-up Solutions of 2D Perovskite Photovoltaics: Insights of Multiscale Structures Open

Junke Jiang, Jiaxue You, Shengzhong Liu, Jun Xi · 2023

Two-dimensional (2D) perovskites assembled with hydrophobic bulky organic cations demonstrate much enhanced ambient stability and anisotropic carrier transport, making their devices highly promising. However, photovoltaic (PV) devices scal…

Moisture‐Insensitive, Phase‐Stable Indium‐Based Metal Halides and Their Light‐Emitting Applications Open

Zhe Tang, Xuan Meng, Hongyuan Zhao, Sujun Ji, Qiujie Wang , et al. · 2023

Ternary indium (In)‐based metal halides are gaining increased attention as promising lead (Pb)‐free alternatives for light‐emitting diodes (LEDs) owing to their broadband emission and high photoluminescence quantum yields (PLQYs). However,…

On the Mechanism of Solvents Catalyzed Structural Transformation in Metal Halide Perovskites Open

Jun Xi, Junke Jiang, Herman Duim, Lijun Chen, Jiaxue You , et al. · 2023

Metal halide perovskites show the capability of performing structural transformation, allowing the formation of functional heterostructures. Unfortunately, the elusive mechanism governing these transformations limits their technological ap…

Structural Isomer of Fluorinated Ruddlesden-Popper Perovskites Toward Efficient and Stable 2D/3D Perovskite Solar Cells Open

Junseop Byeon, Seong Ho Cho, Junke Jiang, Jihun Jang, Claudine Katan , et al. · 2023

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Multifunctional Additive CdAc2 for Efficient Perovskite‐Based Solar Cells Open

Ningyu Ren, Pengyang Wang, Junke Jiang, Renjie Li, Wei Han , et al. · 2023

Polycrystalline perovskite films fabricated on flexible and textured substrates often are highly defective, leading to poor performance of perovskite devices. Finding substrate‐tolerant perovskite fabrication strategies is therefore paramo…

Electronic coupling between perovskite nanocrystal and fullerene modulates hot carrier capture Open

Yusheng Li, Junke Jiang, Dandan Wang, Dong Liu, Shota Yajima , et al. · 2022

Finding schemes for capturing hot carrier is crucial for designing photovoltaic device that more efficiently converts light into electricity. Currently, utilizing fullerene to enhance the cold electron capture from halide perovskite is rem…

Efficient Extraction of Hot Carriers in Perovskite Quantum Dot through Building State Coupled Complex Open

Yusheng Li, Junke Jiang, Dandan Wang, Dong Liu, Shota Yajima , et al. · 2022

Utilizing hot carriers is the crucial approach for solar cell to exceed the thermodynamic detailed balance limit, yet effective extraction of hot carriers in absorber materials via most commonly used semiconductor acceptors has been a chal…

Organic–Inorganic Hybrid Cuprous‐Based Metal Halides for Warm White Light‐Emitting Diodes Open

Xuan Meng, Sujun Ji, Qiujie Wang, Xiaochen Wang, Tianxin Bai , et al. · 2022

Single‐component emitters with stable and bright warm white‐light emission are highly desirable for high‐efficacy warm white light‐emitting diodes (warm‐WLEDs), however, materials with such luminescence properties are extremely rare. Lowd…

Steering device-quality perovskites with unique substrate tolerance Open

Ningyu Ren, Pengyang Wang, Junke Jiang, Renjie Li, Wei Han , et al. · 2022

Polycrystalline perovskite films fabricated on flexible and textured substrates often are highly defective, leading to poor performance of perovskite devices. Finding substrate-tolerant perovskite fabrication strategies is therefore paramo…

Germanium Halides Serving as Ideal Precursors: Designing a More Effective and Less Toxic Route to High-Optoelectronic-Quality Metal Halide Perovskite Nanocrystals Open

Xiaochen Wang, Tianxin Bai, Bin Yang, Ruiling Zhang, Daoyuan Zheng , et al. · 2022

The three-precursors approach has proven to be advantageous for obtaining high-quality metal halide perovskite nanocrystals (PNCs). However, the current halide precursors of choice are mainly limited to those highly toxic organohalides, be…

The role of solvents in the formation of methylammonium lead triiodide perovskite Open

Junke Jiang, José Manuel Vicent‐Luna, Shuxia Tao · 2021

Metal halide perovskites (MHPs) are gaining increasing attention as low-cost, high-performance semiconductors for optoelectronics. In particular, their solution processing is compatible with the large-scale manufacturing of thin-film devic…

The Role of Solvents in the Formation of Methylammonium Lead Triiodide Perovskite Open

Junke Jiang, José Manuel Vicent‐Luna, Shuxia Tao · 2021

Metal halide perovskites (MHPs) are gaining increasing attention as low-cost, high-performance semiconductors for optoelectronics. In particular, their solution processing is compatible with the large-scale manufacturing of thin-film devic…

Effect of Co‐Solvents on the Crystallization and Phase Distribution of Mixed‐Dimensional Perovskites Open

Alessandro Caiazzo, Kunal Datta, Junke Jiang, María C. Gélvez‐Rueda, Junyu Li , et al. · 2021

Solution‐processed quasi‐2D perovskites are promising for stable and efficient solar cells because of their superior environmental stability compared to 3D perovskites and tunable optoelectronic properties. Changing the number of inorganic…

Multifunctional Molecule Engineered SnO2 for Perovskite Solar Cells with High Efficiency and Reduced Lead Leakage Open

Jiali Zhang, Renjie Li, Sofia Apergi, Pengyang Wang, Biao Shi , et al. · 2021

Outstanding performance of perovskite solar cells (PSCs) is closely linked to the optoelectrical properties of charge transporting layers. Herein, amino trimethylene phosphonic acid (ATMP) and KOH are mixed (ATMP‐K) and incorporated in a S…

The role of sodium in stabilizing tin–lead (Sn–Pb) alloyed perovskite quantum dots Open

Junke Jiang, Feng Liu, Qing Shen, Shuxia Tao · 2021

A comprehensive DFT and AIMD study shows that the surface termination engineering of Sn–Pb perovskite QDs plays an important role in maintaining the favorable effect of Na doping for a high and stable PLQY.

Atomistic and Electronic Origin of Phase Instability of Metal Halide Perovskites Open

Junke Jiang, Feng Liu, Ionut Trancă, Qing Shen, Shuxia Tao · 2020

The excellent optoelectronic properties of metal halide perovskites (MHPs) have attracted extensive scientific interest and boosted their application in optoelectronic devices. Despite their attractive optoelectronic properties, their poor…

Microscopic Degradation in Formamidinium-Cesium Lead Iodide Perovskite Solar Cells under Operational Stressors Open

Nengxu Li, Yanqi Luo, Zehua Chen, Xiuxiu Niu, Xiao Zhang , et al. · 2020

GeI2 Additive for High Optoelectronic Quality CsPbI3 Quantum Dots and Their Application in Photovoltaic Devices Open

Feng Liu, Chao Ding, Yaohong Zhang, Taichi Kamisaka, Qian Zhao , et al. · 2019

Trioctylphosphine (TOP)-based syntheses of CsPbI₃ perovskite quantum dots (QDs) yield unprecedented high photoluminescence quantum yield (PL QY), lower Stokes shifts, and longer carrier lifetimes due to their enhanced crystallin…

Partially replacing Pb2+ by Mn2+ in hybrid metal halide perovskites: Structural and electronic properties Open

Davide Bartesaghi, Aniruddha Ray, Junke Jiang, Ricardo K. M. Bouwer, Shuxia Tao , et al. · 2018

Tailoring the physical properties of hybrid lead metal halide APbX3 perovskites by means of compositional engineering is one of the key factors contributing to the development of highly efficient and stable perovskite solar cells. While th…

Stabilizing Lead-Free All-Inorganic Tin Halide Perovskites by Ion Exchange Open

Junke Jiang, Chidozie Onwudinanti, Ross A. Hatton, P. A. Bobbert, Shuxia Tao · 2018

Because of its thermal stability, lead-free composition, and nearly ideal optical and electronic properties, the orthorhombic CsSnI₃ perovskite is considered promising as a light absorber for lead-free all-inorganic perovskite s…

Design of graphene-like gallium nitride and WS2/WSe2 nanocomposites for photocatalyst applications Open

Ruishen Meng, Junke Jiang, Qiuhua Liang, Qun Yang, Chunjian Tan , et al. · 2016

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