Article
Chemistry, Physical
Ribwar Ahmadi, Amin Abnavi, Hamidreza Ghanbari, Hadi Mohandes, Mohammad Reza Mohammadzadeh, Thushani De Silva, Amirhossein Hasani, Mirette Fawzy, Fahmid Kabir, Michael M. Adachi
Summary: The study introduces a photodetector based on the coupling of pyroelectric and photoelectric effects in a silicon-water heterojunction, leading to high responsivity and specific detectivity suitable for liquid-compatible applications with polarization sensitivity.
Article
Chemistry, Physical
Masoud Ghasemi, Nrup Balar, Zhengxing Peng, Huawei Hu, Yunpeng Qin, Taesoo Kim, Jeromy J. Rech, Matthew Bidwell, Walker Mask, Iain McCulloch, Wei You, Aram Amassian, Chad Risko, Brendan T. O'Connor, Harald Ade
Summary: The diffusion of NF-SMA into the donor polymer exhibits Arrhenius behavior, with the activation energy linearly scaling with the enthalpic interaction parameters between the two materials. The most thermodynamically unstable systems are the most kinetically stabilized.
Article
Chemistry, Multidisciplinary
Mengmeng Dong, Yanfei Lv, Xue Peng, Shichao Zhao
Summary: The study demonstrated that the photoelectric properties of Ag2S particles varied under different environments, with factors such as copper phthalocyanine coating, alcohol and air, and carbon disulfide and air affecting the photoelectric performance.
Article
Chemistry, Multidisciplinary
Jie He, Cheng-Yao Li, Dong-Xiang Qi, Qing Cai, Yu Liu, Ren-Hao Fan, Jing Su, Pengcheng Huo, Ting Xu, Ruwen Peng, Mu Wang
Summary: By introducing a HOIP metasurface, significant improvements in broadband absorption and photon-to-electron conversion efficiency have been achieved, leading to enhanced performance of photodetectors.
Article
Materials Science, Multidisciplinary
Kunpeng Ge, Dongdong Meng, Xu Chen, Xu Wang, Xueqiang Ji, Zhengwei Chen
Summary: A solar-blind UV photodetector (PD) with a traditional MSM structure was fabricated using an a-Ga2O3 film deposited on an m-plane sapphire substrate by RF magnetron sputtering method. The optimum deposition temperature for the pure-phase (300) a-Ga2O3 film was determined to be 775°C based on XRD, AFM, and deposition rate analyses. The bandgap of the prepared a-Ga2O3 film was found to be 5.3 eV through optical absorbance measurement. The (300) a-Ga2O3 film based PD exhibited a responsivity of 659.6 A/W and a photo-to-dark ratio of 1554 under 254 nm light illumination. The response time constants at a bias voltage of 5 V were estimated to be (0.28, 1.52 s) and (0.04, 0.62 s), respectively.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Energy & Fuels
Ian Marius Peters, Tonio Buonassisi
Summary: The study found that the performance of solar cells is affected by meteorological conditions, with a obtained implied temperature coefficient higher than the tabulated temperature coefficient used in simulations, demonstrating the impact of coinciding meteorological factors. Projections indicate that as temperatures rise, the performance of crystalline silicon solar panels may decrease.
Article
Chemistry, Physical
Songyang Guo, Hao Xu, Yiqiang Zheng, Linlin Li, Zhexin Li, Lei Zhang, Huibin Zhang, Xianbao Wang, Jinhua Li, Lili Wang, Liyuan Liu, Zheng Lou
Summary: We propose a stretchable photo-sensing logic gate based on the organic semiconductor DPP-DTT, which can achieve NOR logic gate function with the near infrared (NIR) light as input signal. Compared to conventional logic circuits, this system reduces transistor utilization and introduces NIR light to maximize and simplify the functionality of scalable photo-sensing logic circuits.
Article
Physics, Applied
Maolin Zhang, Zeng Liu, Lili Yang, Jiafei Yao, Jing Chen, Jun Zhang, Wei Wei, Yufeng Guo, Weihua Tang
Summary: Ga2O3-based photodetectors are promising for DUV detection, but the reliability under high temperature conditions is a challenge. This study presents an all-oxide self-powered DUV photodetector based on ε-Ga2O3/ZnO heterojunction and investigates its performance in high-temperature environments.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Yongzheng Fang, Jing Wang, Zhanqiang Liu, Guoying Zhao, Yanwei Huang, Jingshan Hou, Ganghua Zhang
Summary: In this study, a Bi9O7.5S6/CdS composite film with a type-II heterojunction was successfully prepared, exhibiting excellent photoelectric performance. The photoelectric current of the composite film was significantly higher than that of pure Bi9O7.5S6 and CdS materials. The enhanced photoelectric response and photostability can be attributed to the improved separation and transfer of photogenerated carriers driven by the type-II heterojunction.
DALTON TRANSACTIONS
(2022)
Article
Optics
Zhiguo Hu, Qian Cheng, Tao Zhang, Yuxuan Zhang, Xusheng Tian, Yachao Zhang, Qian Feng, Wang Xing, Jing Ning, Chunfu Zhang, Jincheng Zhang, Yue Hao
Summary: In this study, beta-Ga2O3 films were deposited on sapphire substrates by MOCVD, and solar-blind photodetectors with MSM structure were fabricated. The effects of growth temperature on the morphology, composition, crystalline quality and optical properties of the films were investigated. The photodetector fabricated at 850 degrees C showed a large photocurrent, high responsivity, high photo-to-dark current ratio, high detectivity, and fast response recovery time.
JOURNAL OF LUMINESCENCE
(2023)
Article
Physics, Applied
Mengmeng Chang, Junhao Ye, Yuanli Su, Jingqin Shen, Nie Zhao, Jinbin Wang, Hongjia Song, Xiangli Zhong, Shunli Wang, Weihua Tang, Daoyou Guo
Summary: Co-alloying β-Ga2O3 thin films with Zn and Mg can maintain a constant band gap and improve the performance of solar-blind UV photodetectors. The photodetector based on Zn/Mg co-alloyed β-Ga2O3 thin films shows low dark current, high photo-to-dark current ratio, high responsivity, high rejection ratio, and fast photoresponse time, making it suitable for detecting weak solar-blind deep UV signals.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Xu He, Chunxiu Li, Lili Wu, Xia Hao, Jingquan Zhang, Lianghuan Feng, Peng Tang, Zheng Du
Summary: Using CdS/CdSe as the composite window layer can effectively enhance the short-circuit current density (J(SC)) of CdTe solar cells. The position of the valence band of CdSexS1-x moves towards the vacuum level as the doping concentration of Se increases, leading to a narrow band gap. Adjusting the conduction band offset (CBO) of the CdSe(x)S(1-x)/CdTe interface and the thickness of CdSexS1-x can improve the device performance.
Article
Materials Science, Multidisciplinary
Chao Wu, Fengmin Wu, Lipeng Deng, Shan Li, Shunli Wang, Lin Cheng, Aiping Liu, Jinbin Wang, Weihua Tang, Daoyou Guo
Summary: The selection of an appropriate electron transport layer (ETL) is crucial for the performance of photodetectors. However, developing efficient materials for deep UV photodetectors remains challenging. In this study, wide-bandgap SrSnO3 nanoparticles were used to construct heterojunction solar-blind photodetectors with Ga2O3. The SrSnO3 was annealed and doped with Y elements to improve carrier transportation efficiency. The resulting Y-O-2-SrSnO3 showed excellent photoelectrical performances in the photodetector based on beta-Ga2O3/Y-O-2-SrSnO3.
Article
Nanoscience & Nanotechnology
Lun Zhang, Huiyuan Zhang, Xiangtian Yu, Liqiang Xu, Dong Wang, Xingyuan Lu, Aimin Zhang
Summary: In this study, a novel superhydrophobic, healable photothermal deicing and photo detector (SHPP) with a papillary structure is successfully fabricated for the first time. The SHPP sensor exhibits outstanding self-cleaning, long-term durability, excellent photothermal deicing performances, and desirable photoelectric performance, making it a promising candidate for clean light energy utilization and sensing applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Bijan Medi, Alireza Bahramian, Vahide Nazari
Summary: The study reports the synthesis of high-quality transparent, conducting polyaniline (PANI) thin films and their characterization through various techniques. A multi-objective optimization approach was then used to increase conductivity while maintaining transparency, making the films suitable for solar cell applications.
Review
Chemistry, Multidisciplinary
Xiao Han, Yun Ji, Ya Yang
Summary: Over the past few decades, ferroelectric materials have garnered much research attention for their unique piezoelectric and optoelectronic properties. Ferroelectric photovoltaics have attracted interest due to their unusual photovoltaic effect and controllability, and research has shown significant improvements in the photogenerated current through cation doping and heterostructure construction.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Xue Zhao, Kai Song, Hui Huang, Wei Han, Ya Yang
Summary: This review focuses on photovoltaic devices based on ferroelectrics, introducing their photoelectric properties, different types of ferroelectric materials, principles and mechanisms of the photovoltaic effect, as well as designs utilizing ferroelectrics for solar energy harvesting and photodetectors. The properties and characteristics of these devices are reviewed in tables, and the prospects for ferroelectric photovoltaic devices are discussed.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xin Chen, Yanjun Zhao, Fayang Wang, Daqiao Tong, Lingxiao Gao, Dongxiao Li, Liangke Wu, Xiaojing Mu, Ya Yang
Summary: By creatively proposing a strategy based on mutual coupling effects to enhance the performance of triboelectric nanogenerators, this work has demonstrated a significant improvement in output power, providing an effective method for promoting the commercialization of TENG.
Article
Materials Science, Multidisciplinary
Lin Xu, Heting Wu, Weiqi Qian, Yang Wang, Chris R. Bowen, Zhong Lin Wang, Ya Yang
Summary: The current treatment for symptomatic gallstones is surgical, but postoperative site infections are a common risk. This study proposes a non-invasive lithotripsy method using ferromagnetic, spiny, flexible, and wireless medical robots to efficiently crush gallstones.
Article
Chemistry, Physical
Shuhan Xu, Huiqi Zhao, Qing Li, Renyun Zhang, Guoliang Li, Bailing Chen, Shouxin Liu, Jian Li, Wenshuai Chen, Ya Yang
Summary: In this study, a cellulose-based multilayer film was constructed as a single-electrode triboelectric nanogenerator (TENG) to overcome the fragility and inability to shape transparent materials into fixed three-dimensional structures. The results showed that the cellulose-based multilayer film was transparent, flexible, and foldable, and various spatial configurations could be achieved through cutting and folding. The practicality and potential application of the cellulose-based multilayer film were demonstrated by developing a multi-dimensional touch password switch.
Article
Chemistry, Physical
Gui-Zhong Li, Ya-Wei Cai, Gui-Gen Wang, Na Sun, Fei Li, Hai-Ling Zhou, Xiao-Nan Zhang, Hai-Xu Zhao, Yuanhao Wang, Jie-Cai Han, Ya Yang
Summary: Wearable/portable devices require flexible, transparent, and lightweight power sources. In this study, flexible and transparent triboelectric nanogenerators (TENGs) were fabricated using cost-effective methods. By doping copper nanowires (Cu NWs) into the friction layers, the TENGs achieved high output voltages and power densities. The PDMS/Cu NWs-based TENG showed advantages such as ease of fabrication, good biocompatibility, flexibility, and transparency, making it a promising sustainable method for self-powered wearable/portable electronic devices.
Review
Nanoscience & Nanotechnology
Weiqi Qian, Heting Wu, Ya Yang
Summary: This review focuses on the current achievements of ferroelectric BaTiO3 based multi-effects coupled materials and devices in various applications, including capacitors, nanogenerators, sensors, electrochemistry, etc. The study reveals the structure-activity relationship of BaTiO3 materials and highlights the significant performance enhancement achieved through multi-effects coupling. It also provides a brief understanding of the opportunities and challenges in this field.
ADVANCED ELECTRONIC MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Huiyu Dan, Hongyu Li, Ya Yang
Summary: Triboelectric nanogenerators are used in various applications, and researchers have focused on improving their performance by modifying device structure and material properties. The polarization characteristics of ferroelectric materials can regulate the output, but their rigidity limits their application in flexible wearable electronics.
FRONTIERS IN MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Xiao Han, Yun Ji, Li Wu, Yanlong Xia, Chris R. Bowen, Ya Yang
Summary: Researchers have developed a new type of coupled nanogenerator using flexible ferroelectric films, which can harvest both light and vibration energies. This device achieves significant enhancements in terms of charge and energy, providing a new strategy to enhance the transduction efficiency of flexible functional devices.
NANO-MICRO LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Suwen Xu, Wenxuan Zhu, Li Wu, Xiaoming Zhang, Chuanbo Li, Yuanhao Wang, Ya Yang
Summary: Exploiting the coupling effect of pyroelectric fields and photocatalysis can greatly enhance the catalytic performance, as demonstrated by the degradation of rhodamine B using Bi0.5Na0.5TiO3 (BNT) nanoparticles under temperature fluctuations and visible light irradiation, achieving a degradation rate of up to 98%. The performance improvement, compared to pyroelectric catalysis and photocatalysis alone, was 216.54% and 31.48% respectively, attributed to the introduction of pyroelectric potential and enhanced domain polarization.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Physical
Chong Guo, Lan Xu, Yuan Su, Hongwei Li, Mei Zhang, Ya Yang
Summary: Using stretchable nanogenerators to obtain mechanical energy from the environment is an ideal way to realize wearable and self-power electronic devices. This paper reviews the physical mechanisms, material selection, structure design, and output performance of stretchable nanogenerators, as well as discusses future development directions.
Article
Chemistry, Physical
Chengmin Bao, Huiyu Dan, Maoyi Zhang, Chuanbo Li, Zhong Lin Wang, Ya Yang
Summary: Hybridized nanogenerator composed of photovoltaic cell (PVC) and triboelectric nanogenerator (TENG) has been developed to scavenge both light and liquid-droplet energies simultaneously. The device exhibits good hybridized process and generates peak current and voltage of 16.96 mu A and 0.83 V. The maximum hybridized peak power is determined by TENG's pulselike output, while the maximum hybridized output energy is more affected by the continuous output signals of PVC.
Article
Chemistry, Physical
Lili Yang, Liyun Wu, Lizhong Su, Lan Xu, Li-Dong Zhao, Ya Yang
Summary: Self-powered photodetectors are crucial for passive monitoring networks and interactive intelligent platforms. This study utilizes a bromine doped n-type SnSe thermoelectric single crystal as the core element, combined with the Ag/SnSe:Br/ITO structure, to achieve low-temperature enhanced photodetection performance through the thermo-phototronic effect. The response current and voltage of the device increase by 139% and 696%, respectively, when the temperature decreases from 300 K to 100 K. Additionally, the responsivity and specific detectivity at 100 K are 7.95 and 2.74 times higher than at 300 K, respectively, indicating enhanced output performance at low temperatures due to accelerated photogenerated electrons through the thermoelectric effect. This work presents a simple structure and low-temperature enhanced photodetectors.
Article
Chemistry, Physical
Shuaikai Xu, Zhemin Li, Guodong Wei, Yuanhao Wang, Ya Yang
Summary: The electrochemical performance of Ti3CNTx, a member of MXenes, can be significantly enhanced by intercalating K+ ions and removing surface terminations. Introduction of Ag nanowires further enhances the charge transport, leading to high gravimetric capacitance. The assembled all-solid-state symmetric supercapacitors exhibit promising potential for flexible electronic devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Mingyue Tian, Lan Xu, Huiyu Dan, Ya Yang
Summary: A self-powered UV photodetector based on a BNT thin film was demonstrated, which utilizes a current and voltage dual indicator detection method to achieve wide linear range detection of UV light intensity and detect weak UV light.
NANOSCALE HORIZONS
(2022)
