Article
Physics, Multidisciplinary
Kaiyue He, Jijie Zhu, Zishun Li, Zhe Chen, Hehe Zhang, Chao Liu, Xu Zhang, Shuo Wang, Peiyi Zhao, Yu Zhou, Shizheng Zhang, Yao Yin, Xiaorui Zheng, Wei Huang, Lin Wang
Summary: This article reports a photodetector based on 2D semiconductors, which has excellent optoelectronic characteristics and potential for highly integrated applications. By combining emerging processing technologies and 2D materials, the device size was reduced and device performance was improved. Using thermal scanning probe lithography, the highest responsivity (172 A/W) achieved at room temperature was an order of magnitude higher than previously reported.
FRONTIERS OF PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Chenyan Li, Weijun Li, Mingming Cheng, Weiye Yang, Qiuhong Tan, Qianjin Wang, Yingkai Liu
Summary: A photodetector based on PbI2 nanosheet/CdSe nanobelt was prepared for the first time, showing a broadband spectral photoresponse and improved photoelectric performance. This new strategy provides a way to design broadband and high-performance photodetectors.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Dong Liu, Ruichang Chen, Fengjing Liu, Jie Zhang, Xinming Zhuang, Yanxue Yin, Mingxu Wang, Zixu Sa, Peng Wang, Li Sun, Zhiyong Pang, Yang Tan, Zhitai Jia, Ming Chen, Zai-xing Yang
Summary: This study successfully achieves high-performance flexible omnidirectional self-powered photodetectors by solution-processing two-dimensional (2D) layered PbI2 nanoplates on transparent conducting substrates. The photodetectors demonstrate low dark current, high light on/off ratio, and fast response time. Moreover, they maintain high performance even when illuminated at different angles, showing stable omnidirectional photoresponse and flexibility.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Hannaneh Dortaj, Mahboubeh Dolatyari, Armin Zarghami, Farid Alidoust, Ali Rostami, Samiye Matloub, Reza Yadipour
Summary: The paper introduces a new technology for high-speed mid-infrared light camera, utilizing cost-effective solution processed technology for device production. The high resolution images are successfully captured and displayed. The theoretical derivation and experimental verification of the fabricated device show consistent results, indicating the high-speed operation and stability of the device.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Quan Wen, Wenbo Ma, Yujing Liu, Xinyi Jin, Jie Ren, Chengce Lin, Chong Hu, Yang Michael Yang, Hanying Li
Summary: In this study, TiO2 networks were incorporated into PbI2 crystals to form interpenetrating type II heterojunctions, namely BHJs, which exhibited long-range ordering in molecular packing similar to that of single crystals. Compared with single crystals, these BHJs facilitated the separation of photogenerated electrons and holes to inhibit recombination, extending the mobility lifetime product by 6.4 times and improving X-ray sensitivity by 5.8 times. This work provides a new strategy using gel-grown crystals to fabricate high-performance X-ray detectors and a new platform for studying the behavior of X-ray-generated carriers in BHJs with long-range ordering.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Optics
Tae Jin Yoo, So-Young Kim, Min Gyu Kwon, Cihyun Kim, Kyoung Eun Chang, Hyeon Jun Hwang, Byoung Hun Lee
Summary: In this study, simultaneous optimization of detectivity and dark current in a graphene/p-type silicon photodetector was achieved by modulating the Schottky barrier height through doping graphene with polyethyleneimine (PEI). Doping graphene with PEI resulted in a three orders of magnitude reduction in dark current and a 529% improvement in detectivity at 850 nm compared to undoped graphene/p-type silicon photodetectors. These results highlight the effectiveness of chemical doping of graphene as a simple and efficient approach to enhance the detectivity of heterojunction photodetectors.
LASER & PHOTONICS REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Linghua Jin, Rongshuo Guo, Tao Han, Ruibin Wang, Ye Zhang
Summary: In this study, 2D VP nanosheets were prepared by liquid phase exfoliation method and utilized for a photoelectrochemical-type photodetector. The as-prepared VP-based photodetector showed tunable photo-response activities and exhibited good self-powered capability and chemical/environmental stability. This work provides insights into the PEC-type VP nanosheets-based photodetector and highlights the potential applications of 2D VP nanosheets in other optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Shaotian Wang, Liangfei Wu, Hui Zhang, Zihan Wang, Qinggang Qin, Xi Wang, Yuan Lu, Liang Li, Ming Li
Summary: This study developed a bottom-up and low-cost method to prepare 2D V2O5 nanosheets film on quartz substrate, which showed good photoresponse as a photodetector.
Article
Chemistry, Physical
Zhenzhen Yang, Tongyu Liu, Song Wang, Hao Chen, Xian Suo, Tao Wang, Bishnu Prasad Thapaliya, De-en Jiang, Ilja Popovs, Sheng Dai
Summary: In this study, a robust CTF membrane with ionic functionalities was successfully fabricated using a sol-gel approach promoted by a superacid. The synthetic pathway developed in this work opens new opportunities in membrane design, fabrication, and application, with the PP-CTF membrane showing significant optical absorption behavior change and the capability to act as pH indicators.
CHEMISTRY OF MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Phuong Huyen Nguyen, Duc Hieu Nguyen, Donghyoung Kim, Mun Kyoung Kim, Jiseong Jang, Woo Hyeong Sim, Hyung Mo Jeong, Gon Namkoong, Mun Seok Jeong
Summary: This study investigates the regeneration of oxidized titanium carbide (Ti3C2Tx) through hydrofluoric acid (HF) post-treatment. The research reveals that the post-treatment can restore the structure and surface composition of MXene nanosheets, thereby improving their electrical conductivity and prolonging their conductivity maintenance time. This finding is crucial for the rational design of Ti3C2Tx-based devices and functional coatings.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Baokang Yu, Jie Fan, Jianxin He, Yong Liu, Rongwu Wang, Kun Qi, PengJu Han, Zhouai Luo
Summary: This study presents a new method for high-yield preparation of boron nitride nanosheets (BNNS) through high-temperature oxidation and hydrothermal exfoliation. Flexible, insulating, and highly thermally conductive BNNS/PI nanocomposite paper was successfully fabricated using this method. The nanocomposite paper exhibited ultrahigh in-plane thermal conductivity and holds great potential for applications in flexible electronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Mohamad Firdaus Mohamad Noh, Nurul Affiqah Arzaee, Inzamam Nawas Nawas Mumthas, Amin Aadenan, Hussain Alessa, Mohammed N. Alghamdi, Hazim Moria, Nurul Aida Mohamed, Abd Rashid Bin Mohd Yusoff, Mohd Asri Mat Teridi
Summary: By introducing 4-tert-butylpyridine (TBP) as an additive, this study improves the film quality of perovskite solar cells (PSC). Increasing the amount of TBP transforms the compact PbI2 layer into a porous structure, enabling the penetration of methylammonium iodide solution and producing high-quality perovskite layer. Increasing the TBP content enhances the efficiency and ambient stability of the PSC.
ELECTROCHIMICA ACTA
(2022)
Article
Energy & Fuels
Yangziwan Weng, Weifeng Zhang, Yi Jiang, Weiyun Zhao, Yuan Deng
Summary: The study presents a template method for scalable production of porous sponge emitter with high radiative cooling efficiency. The PDMS sponge demonstrates high reflectivity and emissivity, achieving significant sub-ambient temperature drop in the solar spectrum and 8-13 μm range.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Multidisciplinary
Derun Li, Chenglin Zhong, Xiao-Lei Huo, Feng Ren, Qingwen Zhou
Summary: A novel method is used to prepare NiFe layered double hydroxide (NiFe LDH) through galvanic-cell corrosion between nickel and iron substrates in aqueous solutions containing a halogen group anion (e.g., Cl) at ambient temperature. The as-prepared NiFe LDH electrodes show excellent catalytic activities and durability for the oxygen evolution reaction (OER), serving as cost-effective and scalable electrocatalysts. This work provides an energy-efficient and cost-effective approach for manufacturing NiFe LDH materials.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Shahram Shaybanizadeh, Alireza Najafi Chermahini
Summary: Through sonication and heat treatment, we successfully produced BNNSs using a simple, affordable, and high-efficiency method. Various analyses confirmed the structure and properties of the obtained BNNSs.
CERAMICS INTERNATIONAL
(2021)
