Article
Materials Science, Multidisciplinary
Han Wang, Ruirui Liu, Songqing Zhang, Yijun Wang, Huijia Luo, Xiao Sun, Yongling Ren, Wen Lei
Summary: This study reports on the growth of monocrystalline Bi2S3 nanowires using chemical vapor deposition and their applications in near-infrared polarized photodetectors. The obtained Bi2S3 nanowires exhibited high quality and a growth model was developed to explain their morphology change. The photodetectors based on these nanowires showed remarkable device performance with high polarization sensitivity to near-infrared light signals.
Article
Chemistry, Physical
Basant Chitara, Bhargava S. C. Kolli, Fei Yan
Summary: This paper reports the chemical vapor deposition of 2D bismuth sulfide for the first time. The 2D Bi2S3-based field-effect transistor exhibits n-type electron mobility and the 2D Bi2S3-based photodetector shows high photo responsivity, external quantum efficiency, detectivity, and linear dynamic range. The results suggest that Bi2S3 has promising potential for next-generation electronic and optoelectronic devices.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Optics
Yusuf B. Ozdemir, Kasif Teker
Summary: This article reports a high-performance self-powered, flexible aluminum nitride nanowire ultraviolet photodetector with excellent detectivity and responsivity. The device is fabricated using a cost-efficient hot-contact method, with small size and flexibility. It demonstrates selectivity to different wavelength UV light sources and shows good durability. The self-powered AlNNW-UV photodetector has potential innovative applications in electronics and photonics.
APPLIED PHYSICS B-LASERS AND OPTICS
(2022)
Article
Nanoscience & Nanotechnology
Gurudutt Bhat, Qian Liu, Marcin Kielar, Yuya Hamada, Tsuyoshi Michinobu, Pankaj Sah, Aung Ko Ko Kyaw, Ajay K. Pandey, Prashant Sonar
Summary: Organic photodetectors (OPDs) are promising for next-generation digital imaging and wearable sensors due to their low cost and high performance, with NIR photon detection improved through donor-acceptor molecular engineering. The novel IDT-based polymers show great potential in enhancing light detection in OPDs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Bongkwon Son, Sang-Ho Shin, Zhi-Jun Zhao, Byeong-Kwon Ju, Jun-Ho Jeong, Munho Kim, Chuan Seng Tan
Summary: Silicon nanowire (NW) array is a promising light-trapping platform due to the strong interaction between light and nanostructure. A systematic study on Si NW array photodetectors with varied NW lengths revealed that photodetectors with 1 μm length provided the highest responsivity of 0.65 A W-1 and a specific detectivity of 1.40 x 10(9) cm Hz(1/2) W-1 at a wavelength of 1000 nm. Furthermore, the introduction of silicon oxide (SiOx) surface passivation improved the responsivity by 13 times at 1100 nm. This study proposes high-efficiency Si NW array photodetectors through NW length control and SiOx surface passivation.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Hanbyeol Jang, Yongwook Seok, YiTaek Choi, Sang-Hoo Cho, Kenji Watanabe, Takashi Taniguchi, Kayoung Lee
Summary: The study demonstrates that surface doping with AuCl3 can enhance the performance of InSe photodetectors, surpassing previously reported 2D material-based infrared photodetectors. Investigation of InSe photodetectors with different structures provides insights into the photodetection mechanism and performance optimization. Additionally, encapsulation with hexagonal boron nitride dielectric enables long-term stability of the devices for up to 3 months.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Ivy M. Asuo, Debika Banerjee, Alain Pignolet, Riad Nechache, Sylvain G. Cloutier
Summary: The hybrid photodetector fabricated with a halide perovskite and silicon nanowire heterojunction shows excellent spectral responsivity, high specific detectivity, fast rise/fall times, and good stability under ambient conditions, offering great potential for future integrated optoelectronic devices.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Yuwei Guan, Chunhuan Zhang, Zhen Liu, Yiman Zhao, Ang Ren, Jie Liang, Fengqin Hu, Yong Sheng Zhao
Summary: Single-crystalline perovskite p-n junction nanowire arrays are demonstrated as ultra-sensitive photodetectors, which possess high crystallinity for efficient carrier transport and form built-in electric fields facilitating effective carrier separation. These results provide new insights into the design and construction of high-performance photodetectors for practical optoelectronic applications.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Valentina Zannier, Ang Li, Francesca Rossi, Sachin Yadav, Karl Petersson, Lucia Sorba
Summary: In order to use III-V compound semiconductors as active channel materials in advanced electronic and quantum devices, it is important to achieve a good epitaxial growth on silicon substrates. The study reports on the selective-area growth of GaP/InGaP/InP/InAsP buffer layer nanotemplates on GaP substrates which are closely lattice-matched to silicon, suitable for the integration of in-plane InAs nanowires. The results demonstrate that a growth sequence of thin layers with progressively increasing lattice parameters is effective to efficiently relax the strain and eventually obtain high quality in-plane InAs nanowires on large lattice-mismatched substrates.
Article
Nanoscience & Nanotechnology
Ji Yang, Yifei Lv, Ziyang He, Binbin Wang, Shiwu Chen, Feng Xiao, Huicheng Hu, Mengxuan Yu, Huan Liu, Xinzheng Lan, Hsien-Yi Hsu, Haisheng Song, Jiang Tang
Summary: Colloidal quantum dots (CQDs) are a potential candidate for infrared photodetectors due to their unique infrared sensitivity, tunable properties, and compatibility with readout circuits. Bismuth sulfide (Bi2S3) films were used as the electron transport layer in a p-i-n photodiode structure, resulting in uniform absorber deposition, superior charge extraction, and suppressed interfacial loss. The Bi2S3-based photodiodes achieved a low dark current density of 1.6 x 10-5 A/cm2 at -400 mV and a specific detectivity (D*) of similar to 1011 Jones at room temperature.
Article
Chemistry, Multidisciplinary
Fanlu Zhang, Xutao Zhang, Ziyuan Li, Ruixuan Yi, Zhe Li, Naiyin Wang, Xiaoxue Xu, Zahra Azimi, Li Li, Mykhaylo Lysevych, Xuetao Gan, Yuerui Lu, Hark Hoe Tan, Chennupati Jagadish, Lan Fu
Summary: A new growth strategy has been developed for the high-quality InGaAs/InP MQW nanowires, demonstrating excellent optical properties and potential for optoelectronic applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Pan Xia, Bin Sun, Margherita Biondi, Jian Xu, Ozan Atan, Muhammad Imran, Yasser Hassan, Yanjiang Liu, Joao M. Pina, Amin Morteza Najarian, Luke Grater, Koen Bertens, Laxmi Kishore Sagar, Husna Anwar, Min-Jae Choi, Yangning Zhang, Minhal Hasham, F. Pelayo Garcia de Arquer, Sjoerd Hoogland, Mark W. B. Wilson, Edward H. Sargent
Summary: This research reports a novel co-passivation strategy for fabricating indium arsenide CQD photodetectors, which maintains charge carrier mobility and improves passivation by using methyl ammonium acetate and indium chloride as ligands, resulting in a doubling of the photoluminescence lifetime. The resulting devices achieved a 37% external quantum efficiency (EQE) at 950 nm, the highest reported value for InAs CQD photodetectors.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Linlin Li, Hao Xu, Zhexin Li, Lingchen Liu, Zheng Lou, Lili Wang
Summary: By using magnetron sputtering technology, the monolithic integration of large area tellurium optoelectronic functional units is achieved. The type II heterojunction constructed by tellurium (Te) and silicon (Si) effectively separates the photogenerated carriers, prolonging the carrier lifetime and improving the photoresponse by several orders of magnitude. The tellurium/silicon (Te/Si) heterojunction photodetector exhibits excellent detectivity and ultra-fast turn-on time. An imaging array (20 x 20 pixels) based on the Te/Si heterojunction is demonstrated and high-contrast photoelectric imaging is achieved. Compared to Si arrays, the Te/Si array significantly enhances the efficiency and accuracy of subsequent processing tasks when electronic pictures are applied to simulate an artificial vision system using artificial neural networks (ANN).
Article
Materials Science, Multidisciplinary
Yiman Zhao, Zhonghao Zhou, Xiaolong Liu, Ang Ren, Shiyang Ji, Yuwei Guan, Zhen Liu, Haidi Liu, Penghao Li, Fengqin Hu, Yong Sheng Zhao
Summary: An on-chip Stokes photodetector based on chiral 2D/quasi-2D perovskite lateral heterojunction nanowire arrays with high polarization selectivity and photoresponsiveness is reported. The device exhibits reliable ability for polarization detection, providing useful enlightenment for direct full-Stokes polarization detection in optoelectronic integrated circuits.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhizhen Chang, Zhengjun Lu, Wei Deng, Yandi Shi, Yuye Sun, Xiujuan Zhang, Jiansheng Jie
Summary: Narrow-bandgap Sn-Pb mixed perovskite single crystals show great potential as photoactive materials for efficient and low-cost near-infrared (NIR) photodetectors. However, the phase separation issue during crystallization process leads to the degradation of optical and electronic properties. In this study, a low-temperature space-confined technique (LT-SCT) is proposed to reduce the crystallization velocities and create pure-phase (FASnI(3))(0.1)(MAPbI(3))(0.9) single crystals. These crystals exhibit excellent crystallinity, high hole mobility, and low surface trap density, enabling their application in self-powered NIR photodetectors with outstanding performance. The work contributes to the development of Sn-Pb mixed perovskite single crystals and offers a promising candidate for efficient and low-cost NIR photodetection.
Article
Chemistry, Multidisciplinary
Chao Fan, Beibei Dai, Huikang Liang, Xing Xu, Zhuodong Qi, Haotian Jiang, Huigao Duan, Qinglin Zhang
Summary: The study demonstrates the epitaxial growth of 1D CsPbBr3 nanowires on 2D Bi2O2Se nanoplates through a vertical vapor deposition method, forming 2D/1D heterostructures. The photoluminescence results show significant quenching of CsPbBr3 emission in the heterostructure, indicating charge carriers transfer from CsPbBr3 to Bi2O2Se. Waveguide characterization reveals that the epitaxial CsPbBr3 wires can efficiently confine and guide their emission, favoring the light absorption of Bi2O2Se.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Songyang Wang, Xia Liu, Xing Xu, Chao Fan, Qin Xiao, Qinglin Zhang
Summary: The Cu3BiS3/copper foam electrode synthesized by a one-step hydrothermal method shows excellent performance in hydrogen evolution reaction due to its unique flower-like structures and synergistic effect of metal/metal sulfide. This work opens up potential for facile growth of ternary metal sulfides with hierarchical nanostructures in the field of HER electrocatalyst.
Article
Nanoscience & Nanotechnology
Xing Xu, Chao Fan, Zhuodong Qi, Sha Jiang, Qin Xiao, Huikang Liang, Huigao Duan, Qinglin Zhang
Summary: This study demonstrates the planar growth of CsCu2I3 nanoribbons on diverse substrates through a spatial-confined method, with in situ investigation revealing the controlled morphology evolution of the nanoribbons. The CsCu2I3 nanoribbon-based photodetectors exhibit outstanding ultraviolet detection performance and stability to light illumination.
ACS APPLIED NANO MATERIALS
(2021)
Article
Physics, Multidisciplinary
Haotian Jiang, Xing Xu, Chao Fan, Beibei Dai, Zhuodong Qi, Sha Jiang, Mengqiu Cai, Qinglin Zhang
Summary: This study demonstrates the direct growth of CsPbBr3 nanoplate-Bi2O2Se nanosheet heterostructures on Bi2O2Se nanosheets through a two-step chemical vapor deposition (CVD) route. The heterostructures exhibit significant photoluminescence quenching and fast photoresponse time, suggesting potential improvement of the optoelectronic performance of Bi2O2Se-based devices.
Article
Chemistry, Multidisciplinary
Chao Fan, Ke Yang, Xing Xu, Zhuodong Qi, Sha Jiang, Mingxia Xia, Qinglin Zhang
Summary: A high-quality CsPbBr3/CdS heterostructure with unique 1D morphology and type-II band alignment was successfully obtained through a 2-step physical vapor deposition strategy, showing high self-powered performances in a photodetector without additional bias supplies. This work provides an effective way for the controllable growth of high-quality CsPbX3-based 1D heterostructures, promoting their practical applications in optoelectronic devices without power consumption.
Article
Chemistry, Analytical
Qin Xiao, Xing Xu, Chao Fan, Zhuodong Qi, Sha Jiang, Qi Deng, Qingjun Tong, Qinglin Zhang
Summary: This study presents a simple and low-cost method to deposit metallic Cu on Ni3S2 nanomembranes, resulting in high-performance electrocatalysts. Microstructural and XPS characterizations reveal the uniform distribution of Cu on Ni3S2 and the modification of electron distributions in S and Ni. Electrochemical testing demonstrates the excellent electrocatalytic activity and stability of Cu/Ni3S2/NF, indicating its potential application in HER.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Zhuodong Qi, Xiaokun Zhai, Xiaohong Jiang, Xing Xu, Chao Fan, Lei Shen, Qin Xiao, Sha Jiang, Qi Deng, Hongjun Liu, Fangli Jing, Qinglin Zhang
Summary: This study demonstrates the fabrication of p-type WS2 field-effect transistors and enhanced optoelectronic performance using NiTe2/WS2 heterostructures formed by van der Waals epitaxy.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Xing Xu, Sha Jiang, Chao Fan, Qi Deng, Lei Shen, Qinglin Zhang
Summary: In this study, unidirectional CsCu2I3 wire arrays were successfully achieved in centimeter scale through a modified microchannel-assisted spatial confinement strategy. The CsCu2I3 wires show high crystallinity and exhibit excellent performance in photodetectors.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zhuangzhuang Cui, Yanhong Yan, Qingquan Liu, Xinchao Zhao, Xing Xu, Feng Liu, Qinglin Zhang, Honglou Zhen, Shaowei Wang, Wei Lu
Summary: Low-dimensional materials, especially two-dimensional materials, have unique optical and photoelectric properties that can be used in nanolasers, sensors, and communications. The complex refractive index of these materials, crucial for optical device design, is difficult to measure accurately due to their small thickness and size. A new cavity-resonant method is proposed in this work, which can accurately obtain the n and k values of embedded LD materials, demonstrating its utility for ultrathin and miniature size LD materials.
Article
Optics
Kun Guo, Chao Fan, Qiang Yu, Jin Wang, Haiqin Deng, Tao Wang, Fangqi Liu, Xianguang Ding, Zhenghui Pan, Sicong Zhu, Jie Yang, Qinglin Zhang, Jian Wu, Pu Zhou, Zongfu Jiang
Summary: Ultrafast photonics has become an interdisciplinary field due to the development of compact and efficient ultrafast pulse generation. A simplified fabrication process of PbS saturable absorbers (PbS-SAs) was achieved using high-quality PbS nanoflakes synthesized by physical vapor deposition. A time-domain flexible fiber pulse laser system with high output power was demonstrated based on the PbS-SAs. This research not only provides a simple manufacturing process for uniform SAs devices, but also improves output power for exploring the unique properties of nanocomposite SAs in photonic applications.
OPTICS COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Tong Chang, Yarui Dai, Qilin Wei, Xing Xu, Sheng Cao, Bingsuo Zou, Qinglin Zhang, Ruosheng Zeng
Summary: In this study, zero-dimensional Mn-based organic-inorganic metal halides (OIMHs) were synthesized and found to exhibit intense green emission at 520 nm. The large organic cations in the crystal structure result in isolated [MnCl4]2- tetrahedrons, effectively inhibiting the migration of excitation energy between adjacent Mn2+ emission centers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Haiqin Deng, Xing Xu, Fangqi Liu, Qiang Yu, Bowang Shu, Zixin Yang, Sicong Zhu, Qinglin Zhang, Jian Wu, Pu Zhou
Summary: The industrialization and commercialization of optoelectronic devices require the exploration of novel materials. The all-inorganic lead-free halide perovskite nanomaterial CsCu2I3 has been widely studied in various applications, but research on its ultrafast photonics properties is lacking. In this study, CsCu2I3 micro-rods were fabricated and their stability and performance in fiber laser systems were investigated. Utilizing its remarkable nonlinear optical response and intrinsic stability, a passively mode-locked erbium-doped fiber laser based on a CsCu2I3 saturable absorber was achieved, demonstrating its potential for ultrafast and long-stability pulse generation in fiber laser applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Sha Jiang, Xing Xu, Chao Fan, Long Chen, Lei Shen, Qi Deng, Xue Xia, Qinglin Zhang
Summary: This study reports a universal method for efficiently integrating various semiconductor wires on a large scale, which involves in-plane integration of metal halide perovskite CsPbBr3 wire arrays with Sb2Se3, PbSe, and CdS wires on mica substrates. The CsPbBr3 wire arrays can act as both the light emitting media and waveguide, guiding the emission into the backbone Sb2Se3 wire. The constructed CsPbBr3 waveguide arrays/Sb2Se3 wire photodetector system exhibits a photocurrent of 73.4 nA with an on/off ratio of 111, and a rapid response speed.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Bingwu Liu, Xing Xu, Mei Han, Huan Cheng, Jiamei Chen, Xuguang Sun, Qinglin Zhang, Xidong Duan, Jiawen Hu
Summary: A plasmonic photodetector was constructed by using a metal/TiO2 Schottky junction with a solution-processed continuous nanoporous Au film as the light absorption layer. The plasmonic properties of the Au film enable the absorption of broad-spectrum visible light and the generation of hot electrons, which can be collected into the TiO2 film to generate a steady-state photocurrent with appreciable photoresponse to visible light.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Beibei Dai, Chao Fan, Xing Xu, Zhuodong Qi, Qin Xiao, Jinhui Wei, Sha Jiang, Qinglin Zhang
Summary: Flag-like CdS microstructures were grown via a PVD route with the assistance of a Pb catalyst and CdS wire sidewall template. The higher defect density in the CdS flag compared to the CdS wire leads to a wider optoelectronic response range for the former. The growth mechanism was well understood through investigating the morphology evolution of the sample at different growth stages.
