Article
Chemistry, Physical
Ruqi Chen, Zhiwei Liang, Wenjing Feng, Xubo Hu, Aize Hao
Summary: The all-inorganic CsPbBr3 perovskite thin films exhibit good optoelectronic properties with smooth surface and photoluminescence emission, and the fabricated photodetector shows fast photoresponse speed and short decay time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Xiangyu Guo, Qi Han, Jun Wang, Shuangshuang Tian, Rongxu Bai, Haibin Zhao, Xingli Zou, Xionggang Lu, Qingqing Sun, David W. W. Zhang, Shen Hu, Li Ji
Summary: We report a large-scale transfer process for monocrystalline CsPbBr(3) thin films, which are prepared by chemical vapor deposition (CVD) and exhibit excellent optical properties and stability. The transfer process allows for the easy transfer of CsPbBr3 thin films to various substrates without damaging the perovskite surface. The resulting atomically clean and electronically flat interfaces between CsPbBr3 and substrates enable the realization of high-performance optoelectronic devices, such as photonic lasers, photodetectors, and transistors with impressive performance attributes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Tomota Nagaura, Hoang-Phuong Phan, Victor Malgras, Tuan-Anh Pham, Hyunsoo Lim, Aditya Ashok, Jeonghun Kim, Jungmok You, Nam-Trung Nguyen, Jongbeom Na, Yusuke Yamauchi
Summary: This study presents a new synthesis route for mesoporous semiconductors through soft-template-assisted electrochemical deposition. The resulting films exhibit homogeneous distribution of mesopores and high sensitivity in photodetection, demonstrating the versatility and potential for applications in nanostructured semiconductors.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Sk. Taheruddin Ahamed, Chiranjit Kulsi, Kirti, Dipali Banerjee, Divesh Narayan Srivastava, Anup Mondal
Summary: This paper describes the galvanic synthesis of CdSe thin films on FTO coated glass substrates and their characterization for various applications such as wastewater treatment, Oxygen Evolution Reaction (OER), and thermoelectric materials. The study involved XRD, FESEM, TEM, XPS, UV-Vis spectroscopy, and electrochemical measurements to evaluate the properties and potential of the CdSe films.
SURFACES AND INTERFACES
(2021)
Article
Computer Science, Interdisciplinary Applications
Fuzhong Zheng, Hongbing Zhu, Yong Huang, Xiaozhao Jin, Danping Huang, Ying Wu, Jiajia Liu
Summary: Studying the transport characteristics of carriers in quantum dot (QD) film supports the design and improvement of QD film device. The hopping transport model of photogenerated carriers in QD films was established to analyze the carrier transport in the transport layer. The carrier transport in single-size QD films was studied based on the material properties of actual QD films.
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
(2023)
Review
Chemistry, Multidisciplinary
Yue Gao, Cheng Yan, Xiaodong Peng, Wen Li, Jingjing Cao, Qungui Wang, Xiankan Zeng, Xuehai Fu, Weiqing Yang
Summary: All inorganic perovskites CsPbX3 show promising application prospects in optoelectronics and photovoltaics, but face challenges like poor stability and nonradiative recombination. Metal doping has become an effective strategy to enhance the properties of CsPbX3, but a comprehensive review on the influences of metal doping is still lacking.
Article
Materials Science, Multidisciplinary
Saad Ullah, Peixin Yang, YuQiao Li, Jiaming Wang, Linlin Liu, Rakeel Mahmood, Shi-E. Yang, Tianyu Xia, Haizhong Guo, Yongsheng Chen
Summary: In this study, a two-step vapor deposition approach was used to fabricate CsPbCl3 films, and the influence of different reaction conditions on the structural, morphological, and optical properties of the films was systematically examined. The optimal reaction conditions resulted in improved crystallinity, morphology, and photoluminescence, providing guidance for high-quality CsPbCl3 and other CsPbX3 perovskite films for future optoelectronic applications.
Article
Physics, Condensed Matter
Prasad Kumar, Parvathy M. Venu, K. M. Sandeep, Veena Shivadas Kindalkar, Ananya M. Kote, S. M. Dharmaprakash
Summary: This paper investigates the fabrication of aluminum-doped zinc oxide thin films at different laser ablation fluences and analyzes their structural, optical, and electrical properties. The thin films prepared at 35 J/cm2 fluence exhibit the highest transmittance (>86%) and the lowest resistivity, with a remarkable switching behavior from p-type to n-type semiconductivity. The non-polar a-plane oriented AZO thin film shows promising optoelectronic properties for LED device fabrication.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Chemistry, Multidisciplinary
I. K. M. Reaz Rahman, Shiekh Zia Uddin, Matthew Yeh, Naoki Higashitarumizu, Jongchan Kim, Quanwei Li, Hyeonjun Lee, Kyuho Lee, Hoyeon Kim, Cheolmin Park, Jaehoon Lim, Joel W. Ager III, Ali Javey
Summary: In this study, a metal-oxide-semiconductor capacitor based on CdSe/CdS quantum dot thin films was used to investigate the influence of background charge on the luminescence efficiency and lifetime. By applying a gate voltage, the concentration ratio of charged and neutral quasiparticles in the quantum dots can be controlled, leading to modulation of the photoluminescence intensity and effective lifetime. The findings have potential applications in voltage-controlled electrochromics.
Article
Engineering, Electrical & Electronic
G. T. Chavan, S. T. Pawar, B. Y. Fugare, S. S. Kamble, P. C. Pingale, Yedluri Anil Kumar, A. Sikora, Abdullah A. Al-Kahtani, Chan-Wook Jeon
Summary: Indium-doped CdSe thin films were prepared using a chemical growth technique, which improved the surface structure and properties of CdSe. The integration of In3+ into CdSe resulted in a shift in the energy band gap, increased absorption, and enhanced refractive index and dielectric constants. The electrical conductivity was also modulated by indium doping.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Optics
Vladimir Pavlenko, Igor Beloussov
Summary: The dynamic and spectral characteristics of close-packed quantum dots excited by a -30 ps long laser pulse in a film prepared by a drop casting method from toluene solution were investigated. The wavelength of photoluminescence of single excitons and the wavelength of amplified spontaneous radiation associated with a stimulated decay of biexcitons were obtained. The dynamics of these two types of radiation were analyzed from the spectrogram of the time-resolved photoluminescence. It was found that the peak maximum of single excitons appears later than the maximum of amplified spontaneous radiation, and slowly narrows and diminishes over time. The amplified spontaneous radiation lasts for 200 ps.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Multidisciplinary
Nikita I. Selivanov, Anna Yu. Samsonova, Ruslan Kevorkyants, Irina V. Krauklis, Yuri V. Chizhov, Boris V. Stroganov, Marios E. Triantafyllou-Rundell, Detlef W. Bahnemann, Constantinos C. Stoumpos, Alexei V. Emeline, Yury V. Kapitonov
Summary: The study introduces a new family of hybrid organic-inorganic 2D lead halides, reporting the first example of the hybrid organic-inorganic post-perovskite 3-cyanopyridinium lead tribromide (3cp)PbBr3. The new material exhibits unique structural connectivity and optical properties that show significant anisotropy within the inorganic layer plane.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
A. M. S. Arulanantham, M. Maria Stephy, K. Gunavathy, N. Sundaramurthy, P. Mohanraj, Ehab El Sayed Massoud
Summary: This study investigates the effects of annealing on the physical characteristics and photoresponse properties of electrodeposited cadmium selenide thin films on fluorine tin oxide-coated glass substrates. Characterization and analysis using X-ray diffractometer, scanning electron microscopy, and UV-Vis spectrometer reveal that annealing improves the crystalline structure, morphology, and optical properties of the films, making them suitable for photodetector applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Yauhen Aniskevich, Aliaksandra Radchanka, Artsiom Antanovich, Anatol Prudnikau, Michael T. Quick, Alexander W. Achtstein, Jae Hyeon Jo, Genady Ragoisha, Mikhail Artemyev, Eugene Streltsov
Summary: Electrophoretically deposited quantum dots can be charged electrochemically to alter their electrical and optical properties, with CdSe quantum dots of different diameters demonstrating a strong electrochromic response. The injected electron count increases with QD size, leading to different energy level fillings observed in cyclic voltammetry measurements. Additionally, EPD CdSe QD films show fast charging-discharging kinetics, suggesting potential applications in electrochromic displays and tunable color filters.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Prashant K. Sahu, R. Das
Summary: Thin films of Sb-doped CdSe were successfully deposited on glass substrates using a chemical method, and characterized by X-ray diffraction, energy dispersive X-ray analysis, and scanning electron microscopy. The study found that an increase in Sb doping in CdSe led to a decrease in band gap, a redshift in photoluminescence emission peak, and two types of conduction mechanisms in electrical resistivity measurements. Additionally, CdSe thin films were observed to have a nanocrystalline phase, and exhibit hydrophilic behavior towards water as confirmed by contact angle measurement.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Bin Wang, Junjie Ma, Zehua Li, Gangshu Chen, Qiang Gu, Shuyao Chen, Yiqiang Zhang, Yanlin Song, Jingbo Chen, Xiaodong Pi, Xuegong Yu, Deren Yang
Summary: Inspired by the adhesion mechanism of mussels, three catechol derivatives with functional Lewis base groups were designed to act as passivators for buried interfaces in perovskite solar cells. Among them, DOPA exhibited the best performance and after 55 days of storage, devices treated with DOPA maintained 85% of their initial performance in air with 15% relative humidity.
Article
Chemistry, Multidisciplinary
Yue Wang, Yiyue Zhu, Yayao Li, Yiqiang Zhang, Deren Yang, Xiaodong Pi
Summary: This research presents an optoelectronic synaptic device with dual modes and versatile synaptic plasticity based on optoelectronic integration. The device can mimic biological synapses in wavelength-selective synaptic plasticity and spike-rate-dependent plasticity with optical stimulation. A light-stimulated artificial neural network for digit recognition and image processing simulation are proposed to demonstrate the device's potential applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Shiheng Wang, Zhenkun Gu, Rudai Zhao, Ting Zhang, Yunjie Lou, Lutong Guo, Meng Su, Lihong Li, Yiqiang Zhang, Yanlin Song
Summary: In this study, a lithography-free method for the controllable growth of perovskite single-crystal arrays is reported. This approach demonstrates a facile way to fabricate large-scale perovskite single-crystal arrays and produce diverse perovskite optoelectronic devices.
Review
Chemistry, Multidisciplinary
Qingli Cao, Pengwei Li, Wei Chen, Shuangquan Zang, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: Two-dimensional perovskites have gained extensive attention in the field of photovoltaics due to their intrinsic stability and tunability. Despite achieving high stability and conversion efficiency, the efficiency of 2D perovskite solar cells lags behind their 3D counterparts. This review focuses on the structural aspects of different types of 2D halide perovskites and discusses the influence of spacer physical characteristics on their performance, while exploring strategies for selecting novel spacers.
Review
Chemistry, Multidisciplinary
Hangjuan Wu, Yajie Cheng, Junjie Ma, Jiahao Zhang, Yiqiang Zhang, Yanlin Song, Shou Peng
Summary: This article provides an overview of the current research status and potential applications of semitransparent perovskite solar cells. It discusses the key approaches for maximizing light utilization efficiency and proposes directions for commercialization.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Yuanchao Huang, Rong Wang, Naifu Zhang, Yiqiang Zhang, Deren Yang, Xiaodong Pi
Summary: This study investigates the role of hydrogen in the growth of HPSI 4H-SiC single crystals, revealing that it significantly mitigates N doping while hardly affecting B doping. The study also reveals that adjusting the relative B and N doping concentrations has a substantial impact on the Fermi energy of HPSI 4H-SiC.
JOURNAL OF APPLIED PHYSICS
(2022)
Review
Physics, Applied
Jiajun Li, Guang Yang, Xiaoshuang Liu, Hao Luo, Lingbo Xu, Yiqiang Zhang, Can Cui, Xiaodong Pi, Deren Yang, Rong Wang
Summary: This topical review provides an introduction to the classification and properties of dislocations in 4H-SiC, as well as their generation, evolution, and elimination processes. The effects of dislocations on the electronic and optical properties of 4H-SiC materials and devices are also discussed, along with insights for further control of dislocations.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Review
Nanoscience & Nanotechnology
Hui Lu, Wenji Liu, Haolin Wang, Xiao Liu, Yiqiang Zhang, Deren Yang, Xiaodong Pi
Summary: Since the appearance of atomically flat graphene, two-dimensional layered materials have attracted widespread interest due to their unique properties. The 2D layered materials prepared on epitaxial graphene/silicon carbide (EG/SiC) surface by molecular beam epitaxy (MBE) have high quality and can be directly applied without transfer to other substrates. Scanning tunneling microscopy and spectroscopy (STM/STS) with high spatial and energy resolution are commonly used to investigate the morphologies and electronic structures of 2D layered materials. This review introduces recent progress in the MBE preparation of various mono-elemental or transition metal dichalcogenide 2D layered materials on EG/SiC surface and their STM/STS investigations.
Article
Chemistry, Physical
Jing Zhou, Xueying Tian, You Gao, Shasha Zhang, Yiqiang Zhang, Zonghao Liu, Wei Chen
Summary: By developing a multilayer thin-film barrier with the architecture of parylene/MgF2/Al2O3, the long-term stability of perovskite solar cells (PSCs) can be greatly improved, leading to enhanced light and thermal stability of perovskite films and operational stability of PSCs.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Guanghui Yu, Ke-Jian Jiang, Wei-Min Gu, Xinning Jiao, Tangyue Xue, Yiqiang Zhang, Yanlin Song
Summary: A cation-exchange approach is used to fabricate high-quality all-inorganic CsPbI3 perovskite solar cells with a power-conversion efficiency of 18.2%.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yue Wang, Kun Wang, Xiangyu Hu, Ya'kun Wang, Wandong Gao, Yiqiang Zhang, Zhenghui Liu, Yi Zheng, Ke Xu, Deren Yang, Xiaodong Pi
Summary: This study demonstrates the simultaneous modulation and visualization of synaptic events using optically stimulated synaptic devices based on the hetero-structure of fluorescent silicon quantum dots and monolayer molybdenum disulfide. These devices can mimic neural population coding and identify defective devices through the absence of fluorescence. This research has important implications for the development of synaptic devices.
Article
Chemistry, Physical
Zhenkun Gu, Yingjie Zhao, Yiqiang Zhang, Zhandong Huang, Zhonghao Zhou, Kang Wang, Lihong Li, Yong Sheng Zhao, Qun Xu, Yanlin Song
Summary: In this study, a facile printing strategy was reported to controllably fabricate perovskite single-crystal arrays with well-defined morphology and location. By modulating perovskite precursor ion aggregation in microdroplets through controlling the temperature of substrates, perovskite single-crystal arrays with controlled morphologies are fabricated and selectively integrated on silicon for high-performance tailored laser arrays. Additionally, integrated perovskite single-crystal microstructures were printed, showing efficient coupling property with well-maintained intrinsic characters of the original signals. This strategy enables fully inkjet-printed morphology-controllable perovskite single-crystal arrays and functional coupling-structure arrays, which offers new opportunities for integrated photonic and optoelectronic devices.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhipeng Miao, Qingli Cao, Sihui Peng, He Zhu, Fangfang Yuan, Yuncai Liang, Ting Zhang, Rudai Zhao, Pengwei Li, Yiqiang Zhang, Yanlin Song
Summary: LD Dion-Jacobson (LDDJ) perovskite constructed with cystamine as a ligand improves carrier properties and achieves higher conversion efficiency in low-dimensional perovskite solar cells (PSCs). Disulfide bonds play a significant role in charge localization and reducing charge transfer anisotropy.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yue Wang, Lei Yin, Shijie Huang, Rulei Xiao, Yiqiang Zhang, Dongke Li, Xiaodong Pi, Deren Yang
Summary: In this study, synaptic phototransistors based on silicon nanomembrane were developed, enabling synaptic functionalities from ultraviolet to near-infrared. The broadband synaptic functionalities allow an array of phototransistors to perceive brightness and color, simultaneously sensing, processing, and storing information, mimicking human vision effectively.
Review
Chemistry, Multidisciplinary
Xing Yin, Ziyu Wang, Yingjie Zhao, Shasha Zhang, Yiqiang Zhang, Yanlin Song
Summary: This review comprehensively analyzes the characteristics and mechanisms of in situ polymerization in perovskite solar cells. In situ cross-linking polymerization shows superiority in nucleation and crystal growth, leading to improved stability and flexibility in perovskite films. The effects of in situ polymerization on lattice rigidity, flexibility, and charge transport layers are discussed. The challenges and opportunities of in situ cross-linking polymerization are outlined.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
