Article
Chemistry, Multidisciplinary
Hengshan Wang, Yanfeng Yin, Jiao Xu, Jing Li, Yanan Bao, Meiqi An, Lingzhi Tang, Shengye Jin, Wenming Tian, Yiming Yang
Summary: The dynamic crystal lattice of halide perovskites facilitates the coupled transport of ions and electrons, offering innovative concepts in semiconductor iontronic devices. This study focused on investigating electric field induced ionic transport in CsPbBr3 nanowires and discovered highly anisotropic ionic transport upon poling. The giant switchable photovoltaic effect was identified, along with significant localization of photocarriers near one terminal of the device, attributed to the accumulation of halogen vacancies. The poled device showed a 10-fold increase of photoresponse speed due to enhancement of the local electric field.
Review
Nanoscience & Nanotechnology
Jinshuai Zhang, Jiepeng Song, Qing Zhang
Summary: Metal halide perovskite polycrystalline films have shown significant advancements in high-performance optoelectronic devices, with the potential to improve efficiency and commercialization. However, perovskite single crystals are more promising due to their longer carrier diffusion lengths, extended carrier lifetimes, and enhanced carrier mobility. Various methods have been developed for synthesizing large-scale perovskite single crystals and patterning their surfaces.
Article
Chemistry, Multidisciplinary
Marieh B. Al-Handawi, Ghada Dushaq, Patrick Commins, Durga Prasad Karothu, Mahmoud Rasras, Luca Catalano, Pance Naumov
Summary: This study reports the autonomous self-healing capability of centimeter-size single crystals of methylammonium lead(II) iodide (MAPbI(3)) at ambient temperature, with remarkable recovery of their optoelectronic properties. This discovery overcomes the challenges of chemical stability and mechanical robustness, providing a new strategy for the development of durable and stable optoelectronic devices based on single crystals of hybrid perovskites.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Luis Lanzetta, Thomas Webb, Jose Manuel Marin-Beloqui, Thomas J. Macdonald, Saif A. Haque
Summary: This study describes the impact of native halide chemistry on tin halide perovskites and discusses the applications of halide substitution in improving stability, the ecological impact of degradation products, and the development of visible light emitters through halide tuning. Additionally, the influence of halide defect management and interfacial engineering on tin halide perovskite devices is explored.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Yanan Bao, Hengshan Wang, Meiqi An, Huayi Tang, Jing Li, Jianliang Li, Conghui Tan, Yingmin Luo, Jiao Xu, Yiming Yang
Summary: This study investigated the synthesis mechanism of chemical vapor deposited single-crystalline all-inorganic perovskite microplates and reported a defect-modulated photocurrent related to the growth sequence of the microplates. It was found that the central defects in the microplates may be thermally activated and become highly mobile at elevated temperatures, leading to the degradation of optoelectronic attributes. This work sheds light on the formation, proliferation and dynamics of defects in perovskites, providing guidance for the preparation of high-quality perovskite micro-crystals for functional semiconductor devices with high temperature stability.
Review
Chemistry, Physical
Ying-Yi Tang, Yang Shen, Jing-Kun Wang, Xiao-Yan Qian, Ming-Lei Guo, Yan-Qing Li, Jian-Xin Tang
Summary: Metal halide perovskite (MHP) materials show great advantages over conventional semiconductors in next-generation optoelectronics due to their outstanding photophysical properties and easy solution processability. Suitable micro-nanostructures have been proven to be an essential strategy for improving the luminescent characteristics of MHP-based optoelectronics. The systematic review and discussion of the fabrication techniques, practical applications, challenges, and prospects of micro-nanostructures in MHP-based luminescence applications have been conducted.
Article
Engineering, Electrical & Electronic
Randy Burns, Siphelo Ngqoloda, Stephen C. Klue, Evguenia Karapetrova, Christopher J. Arendse, Suchismita Guha
Summary: Methylammonium lead iodide thin films were successfully synthesized using chemical vapor deposition, and their structure and properties were investigated using X-ray diffraction and photoluminescence. The results showed that the films maintained a tetragonal structure in the temperature range of 20-300 K, displaying a single-phase behavior and uniform phase.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Hongda Li, Tianyuan Luo, Shoufeng Zhang, Zijun Sun, Xiong He, Wenfeng Zhang, Haixin Chang
Summary: Metal-halide perovskites have attracted increasing attention in optoelectronics, with 2D metal-halide perovskites showing novel properties that can enhance the performance of optoelectronic devices.
ENERGY & ENVIRONMENTAL MATERIALS
(2021)
Review
Chemistry, Physical
Zhipeng Zhang, Sisi Wang, Xinfeng Liu, Yonghua Chen, Chenliang Su, Zikang Tang, Ying Li, Guichuan Xing
Summary: The combination of metal halide perovskites and 2D materials has shown significant progress in the field of photovoltaics, but challenges remain in improving performance and stability. Different fabrication techniques provide diversity for their assembly, while also offering opportunities for rational design.
Article
Crystallography
Xingdong Sun, Ezimetjan Alim, Yang Wen, Sumei Wu, Yongqing Cai, Zheng Wei, Yingying Wang, Yao Liang, Zhihua Zhang
Summary: In recent years, two-dimensional layered transition metal dichalcogenides (TMDs) have attracted significant attention due to their exceptional electrical and optical properties. Among them, ReS2 stands out with its unique optical and conductance anisotropy. This study successfully grew large-scale continuous monolayer and bilayer ReS2 films on mica substrates using low-pressure chemical vapor deposition (LPCVD). Photodetectors fabricated using these high-quality ReS2 films showed stable photoresponse and enhanced sensitivity. The production of continuous ReS2 atomic layers holds promising prospects for large-scale integrated circuits and advances the practical application of optoelectronics based on 2D layered materials.
Article
Chemistry, Physical
Jinshuai Zhang, Perry Ping Shum, Lei Su
Summary: Geometry-confined technologies have been widely applied to improve the performance of perovskite-based optoelectronic devices. This review summarizes recent progress in the preparation and manufacture of various perovskite morphologies and discusses the challenges for further improvements.
Article
Nanoscience & Nanotechnology
Qimu Yuan, Kilian B. Lohmann, Robert D. J. Oliver, Alexandra J. Ramadan, Siyu Yan, James M. Ball, M. Greyson Christoforo, Nakita K. Noel, Henry J. Snaith, Laura M. Herz, Michael B. Johnston
Summary: This study investigates the use of CuPc and ZnPc as alternative hole transport layers (HTLs) in all-vacuum-deposited metal halide perovskite (MHP) solar cells. The CuPc HTL achieves a solar-to-electrical power conversion efficiency of up to 13.9% and demonstrates excellent long-term stability, with no observable degradation even after 5000 hours in storage and 3700 hours under thermal stress.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Materials Science, Multidisciplinary
Jin-Tao Wang, Shu-Zhuang Wang, Yu-Hang Zhou, Yan-Hui Lou, Zhao-Kui Wang
Summary: Metal halide perovskites have shown great potential for flexible optoelectronics. This article summarizes the major breakthroughs in the field of flexible PeLEDs and discusses the challenges that hinder their performance and commercialization.
SCIENCE CHINA-MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
S. L. Choon, H. N. Lim, I. Ibrahim, Z. Zainal, K. B. Tan, C. Y. Foo, C. H. Ng
Summary: The unique behavior of one-dimensional nanostructure, nanorods in semiconductors has made them useful in various applications. This review focuses on the recent progress of metal perovskite nanorods, starting with the early appearance of semiconductors nanorods and their development over the years. The synthesis methods, factors influencing the final morphology, and applications of perovskite nanorods in energy devices and optoelectronic devices are discussed, along with the challenges in inventing metal halide perovskite nanorods. The review concludes with a summary and outlook on the future progress of this material.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Review
Chemistry, Analytical
Shuangyang Zou, Xiaoan Zhao, Wenze Ouyang, Shenghua Xu
Summary: This review introduces the applications of halide perovskites as semiconducting materials in diverse optoelectronic devices, and emphasizes the use of microfluidic synthesis and nanostructures. The advantages of microfluidics, recent progress in doping strategies, and optoelectronic applications of light-sensitive nanostructured perovskite materials are briefly discussed and summarized. The perspective of microfluidic synthesis of halide perovskite on optoelectronic applications and possible challenges are also presented.
Article
Chemistry, Multidisciplinary
Athira Thacharon, Woo-Sung Jang, Jihyun Kim, Joohoon Kang, Young-Min Kim, Sung Wng Kim
Summary: This study reports a rational approach for non-oxidized bare metal nanoparticles (MeNPs) in air without additional surface passivation treatment. It was found that the synthesized bare MeNPs are ultra-stable in ambient air and exhibit no trace of metal oxides even on their outermost atomic layer. This unique resistance to oxidation is attributed to the accumulation of excess electrons on the surface of bare MeNPs.
Article
Chemistry, Multidisciplinary
Yeonghun Yun, Gill Sang Han, Gyu Na Park, Jihyun Kim, Jinhong Park, Devthade Vidyasagar, Jina Jung, Won Chang Choi, Young Jin Choi, Kwang Heo, Joohoon Kang, Ji-Sang Park, Hyun Suk Jung, Sangwook Lee
Summary: A self-powered, color-filter-free blue photodetector based on halide perovskites is reported, achieving a high external quantum efficiency (EQE) of 84.9%. The incorporation of Cs+ ions improves durability and responsivity of the device.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jihyun Kim, Ju Hyeon Lee, Myeongjin Jung, Jae Hyung Kim, Jung-Min Park, Han-Ki Kim, Joohoon Kang
Summary: In this study, multivalued transistors were fabricated on a wafer-scale using area-selective optical doping. By controlling the carrier concentrations, the researchers were able to design multivalued electrical characteristics and achieve a stable intermediate state.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Okin Song, Dongjoon Rhee, Jihyun Kim, Youngseo Jeon, Vlastimil Mazanek, Aljoscha Soll, Yonghyun Albert Kwon, Jeong Ho Cho, Yong-Hoon Kim, Joohoon Kang, Zdenek Sofer
Summary: Inkjet printing is a cost-effective and scalable method for assembling colloidal materials into desired patterns. 2D nanosheets are a promising material category for printed electronics, enabling high-performance thin-film transistors.
NPJ 2D MATERIALS AND APPLICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Dongjoon Rhee, Boyun Han, Myeongjin Jung, Jihyun Kim, Okin Song, Joohoon Kang
Summary: In this study, a solution-based hierarchical structuring method was reported to create continuous stretchable semiconductor films through the self-assembly of two-dimensional nanosheets. By forming hierarchical wrinkles with multigenerational structures, the films achieved crack resistance and significantly improved photoresponsivity and strain sensor performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Huong Thi Thanh Nguyen, Laud Anim Adofo, Sang-Hyeok Yang, Hyung-Jin Kim, Soo Ho Choi, Balakrishnan Kirubasankar, Byeong Wook Cho, Andrew Ben-Smith, Joohoon Kang, Young-Min Kim, Soo Min Kim, Young-Kyu Han, Ki Kang Kim
Summary: The spatial heterojunction between 1T' RexMo1-xS2 and 2H MoS2 displays improved catalytic activity for the hydrogen evolution reaction. Various experiments and calculations reveal that the performance enhancement is achieved through electron transfer and optimal ΔG(H*) at the heterojunction.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Kyunghan Ahn, Ga Hye Kim, Se-Jun Kim, Jihyun Kim, Gi-Seong Ryu, Paul Lee, Byungki Ryu, Jung Young Cho, Yong-Hoon Kim, Joohoon Kang, Hyungjun Kim, Yong-Young Noh, Myung-Gil Kim
Summary: This study reports the synthesis of highly conductive transparent p-type sulfur-doped CuI (CuI:S) thin film using a liquid-iodination method with a thiol additive. The CuI:S film exhibits a remarkably high electrical conductivity and optical transmittance, achieving a record-high figure of merit (FOM) value. The CuI:S electrode is successfully utilized in transparent electronic devices.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chaojian Chen, Millicent Lin, Carolin Wahl, Yuanwei Li, Wenjie Zhou, Zhe Wang, Ye Zhang, Chad A. Mirkin
Summary: We developed a nanopatterning strategy based on the dynamic coordination bonds between polyphenols and metal ions, allowing the creation of structures on surfaces with diverse properties. By patterning metal-phenolic precursors composed of different polyphenols and metal ions under acidic conditions, a library of deposited metal-phenolic nanopatterns was obtained. Post-treatment of the patterns under basic conditions triggered a change in coordination state and led to the generation of stable networks attached to the substrates. This technique offers control over feature size, shape, and composition, making it useful for various applications such as catalysis, sensing, and template-directed assembly.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Kyumin Kang, Hannah Kwon, Okin Song, Tae Ri Yang, Joohoon Kang, In Soo Kim, Donghee Son
Summary: In this study, a modular wearable optoelectronic system is reported, which can achieve energy harvesting, sensing, and display capabilities on the skin even under deformation. To ensure the system is physically and electrically reconfigurable, water-resistant self-healing stretchable polymer and conducting composite films were added to the encapsulation/substrate layers and interconnects, respectively. The findings of this study are significant for realizing high-performance personalized wearable optoelectronic systems.
Article
Nanoscience & Nanotechnology
Jianbo Jin, Haowei Huang, Chubai Chen, Patrick W. Smith, Maria C. Folgueras, Sunmoon Yu, Ye Zhang, Peng-Cheng Chen, Fabian Seeler, Bernd Schaefer, Carlos Lizandara-Pueyo, Rui Zhang, Kerstin Schierle-Arndt, Peidong Yang
Summary: Cs2Te(IV)X6 double perovskites exhibit molecule-like electronic behavior when X is Cl- or Br-, thanks to the zero-dimensional (0D) nature of their octahedral units. The Cs2TeBr6 solid is composed of electronically isolated [TeBr6]2- ionic octahedra. The electronic structure and photoexcitation of Cs2TeBr6 are discussed, and two optical absorption features corresponding to HOMO-LUMO transitions under 455 nm and 365 nm excitations are identified. The photocatalytic performance of Cs2TeBr6 in the photo-oxidation of benzyl alcohol is studied, revealing differences in the activated alcohol radicals depending on the excitation wavelength. This work highlights the application potential of molecule-like halide perovskites in photocatalysis.
Article
Engineering, Electrical & Electronic
Yonghyun Albert Kwon, Jihyun Kim, Sae Byeok Jo, Dong Gue Roe, Dongjoon Rhee, Younguk Song, Byoungwoo Kang, Dohun Kim, Jeongmin Kim, Dae Woo Kim, Moon Sung Kang, Joohoon Kang, Jeong Ho Cho
Summary: Arrays of thin-film transistors can be fabricated on a large scale using solution-based processing of Molybdenum Disulfide and Sodium-embedded Alumina inks. This method yields devices with high carrier mobility at room temperature. However, existing solution processing methods often have a trade-off between scalability and material quality.
NATURE ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Okin Song, Joohoon Kang
Summary: Towards practical demonstration of high-quality two-dimensional nanomaterial-based electronics, solution-based processing has emerged as a promising approach for scalable synthesis. Various strategies have been developed to overcome the limitations of solution-processed 2D nanomaterials, such as isopycnic density gradient ultracentrifugation and alkali-metal intercalations. Molecular intercalation-based electrochemical exfoliation has been identified as a viable solution-based method for achieving desired morphologies and gate-tunable thin-film electronics with decent device performance. This article provides a chronological introduction of solution-based processing of 2D nanomaterials and discusses the remaining challenges and opportunities in electronics.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Yun Seong Cho, Dongjoon Rhee, Jihun Lee, Su Yeon Jung, Jeongha Eom, Vlastimil Mazanek, Bing Wu, Taeho Kang, Sungpyo Baek, Haeju Choi, Zdenek Sofer, Sungjoo Lee, Joohoon Kang
Summary: PtSe2 shows great potential as a 2D material for broadband photodetectors and electrocatalysts. We demonstrate wafer-scale PtSe2 films with controlled electronic types using a solution-based strategy. Semiconducting or semimetallic PtSe2 nanosheets with large sizes are produced through electrochemically driven molecular intercalation and centrifugation-based thickness sorting. Photodetector arrays with tunable performance and stable catalytic electrodes for water splitting are achieved using these films.
Article
Chemistry, Physical
Prashant Singh, Dongjoon Rhee, Sungpyo Baek, Hyun Ho Yoo, Jingjie Niu, Myeongjin Jung, Joohoon Kang, Sungjoo Lee
Summary: Researchers have successfully fabricated in-plane ferroelectric field effect transistors (FETs) based on a van der Waals heterojunction (vdWHJ), which can perform multibit memory and logic operations. The device exhibits excellent stability and retention characteristics, making it suitable for programmable logic-in-memory applications.
Article
Multidisciplinary Sciences
Ye Zhang, Eric Parsonnet, Abel Fernandez, Sinead M. Griffin, Huaixun Huyan, Chung-Kuan Lin, Teng Lei, Jianbo Jin, Edward S. Barnard, Archana Raja, Piush Behera, Xiaoqing Pan, Ramamoorthy Ramesh, Peidong Yang
Summary: This article introduces the characteristics of ferroelectric semiconductors and halide perovskites, as well as their potential in designing functional photoferroelectrics. The authors report the discovery of ferroelectricity in all-inorganic halide perovskites and provide evidence through calculations and experiments.