Article
Nanoscience & Nanotechnology
Benjamin D. Wiltshire, Mahnaz Alijani, Hanna Sopha, David Pavlinak, Ludek Hromadko, Raul Zazpe, Sitaramanjaneya M. Thalluri, Eva Kolibalova, Jan M. Macak, Mohammad H. Zarifi
Summary: To detect visible light at gigahertz frequencies, a planar microwave resonator was integrated with a high aspect ratio TiO2 nanotube (TNT) layer-sensitized CdS coating using atomic layer deposition (ALD). This integration improved the performance of light detection devices in digital technology. The CdS-coated TNT layer showed sensitivity to visible light up to a wavelength of approximately 650nm, and enhanced sensitivity to green and red light compared to the blank TNT layers. The CdS coating also improved the sensor's response to light exposure and resulted in shorter recovery times.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Pravin S. Pawar, Raju Nandi, Krishna Rao Eswar Neerugatti, Indu Sharma, Rahul Kumar Yadav, Yong Tae Kim, Jae Yu Cho, Jaeyeong Heo
Summary: The application of double buffer layers can enhance the power conversion efficiency of antimony sulfide thin-film solar cells. In this study, SnO2 and TiO2 were applied as double buffer layers with CdS, leading to reduced surface roughness of ETLs and improved orientation of the Sb2S3 absorber. The use of double buffer layers also resulted in significant improvements in open-circuit voltage and PCE.
Article
Materials Science, Composites
Yiyin Su, Hanmo Zhou, Xishan Guo, Yinfei Zheng, Xiaohui Yang, Haitao Huang, Li-min Zhou, Zhongqing Su
Summary: In this study, carbon nanotubes (CNTs) were in situ grafted onto glass fiber (GF) via chemical vapor deposition at a low synthesis temperature (500 degrees C). By regulating the mass fractions of CNTs, the quantum tunneling effect among CNT nanoparticles was triggered, resulting in high sensitivity of the CNT-grafted GF textiles to structure-guided ultrasonic waves in the frequency range from 175 to 375 kHz. The CNT-grafted GF textiles demonstrated great potential in developing hybrid functional composites, with negligible degradation in mechanical attributes as confirmed by ASTM-complied tests (ASTM C1557 and D3039).
COMPOSITES COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Radha Bhardwaj, Arnab Hazra
Summary: Diverse metal oxide semiconductors play important roles in chemical sensing applications. In this study, SrTiO3-TiO2 heterostructured nanotube arrays were successfully designed by growing different quantities of SrTiO3 on TiO2 nanotubes. The sensors exhibited selective response to ethanol, excellent response magnitude, and fast response time. Additionally, the sensors showed good stability, low detection limit, and good selectivity.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Xuerui Han, Chengwu Shi, Yuye Huang, Kai Lv, Wangchao Chen, Fuling Guo, Yanqing Wang
Summary: CdS thin films were prepared by chemical bath deposition (CBD), and Sb2S3-y Se (y) thin films were prepared by a hydrothermal method. The quality of CdS thin films as the electron transport layer was evaluated in solar cells with the architecture of FTO/CdS/Sb2S3-y Se (y)/spiro-OMeTAD/Au. A precise preparation strategy, involving adjusting the thickness of CdS thin films prepared by CBD and changing the concentration of the CdCl2 methanol solution in the post-treatment process, was proposed for the first time. The strategy allowed for the successful production of a compact and full-coverage CdS thin film with a thickness of 40 nm and achieved an optimal power conversion efficiency of 8.46%.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Nakisa Lalpour, Valiollah Mirkhani, Reza Keshavarzi, Majid Moghadam, Shahram Tangestaninejad, Iraj Mohammadpoor-Baltork, Peng Gao
Summary: In this study, copolymer-templated TiO2 structures were used as an electron transfer layer (ETL) to improve the efficiency and photocurrent density of CIS-PSCs. Compared to conventional TiO2 ETLs, copolymer-templated TiO2 ETLs with a lower refractive index increased transmittance and improved photovoltaic performance. Surface hydroxyl groups on the CT-TiO2 induced a self-healing effect in perovskite, providing superior stability in the CIS-PSCs. The fabricated CIS-PSC achieved a conversion efficiency of 11.08% and retained 100% of its performance after 90 days.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
Lijie Duan, Haifeng Zhu, Ming Li, Xingyu Zhao, Yankun Wang, Yaping Zhang, Lianqing Yu
Summary: The study demonstrates that two-dimensional semiconductor MoSeS combined with TiO2 nanotube arrays exhibit highly efficient photocatalytic H-2 generation. The MoSeS/TiO2 heterojunction prepared by one-step atom substitution method shows superior photocatalytic performance compared to the two-step method. The composites not only reduce charge transfer resistance and accelerate carrier transport, but also improve visible light utilization efficiency with an obvious redshift in UV-vis absorption spectra.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Tongtong Wang, Jianmin Li, Rongjie Gao
Summary: A highly ordered lotus-root-shaped TiO2 nanotube array (TNTAs) was prepared by two-step electrochemical anodization, and CdS was grown on TNTAs using ultrasound-assisted continuous ion layer adsorption reaction (SILAR). The effect of CdS cycle times on the performance of TNTAs was investigated, and the results showed that when CdS is deposited for 12 times, the visible light absorption of TNTAs is the highest, with a maximum photocurrent density of 2030 mu A·cm(-2) and a minimum charge transfer resistance Rct of 153.7 Ω·cm(-2).
Article
Engineering, Electrical & Electronic
C. A. Rodriguez, Adriana C. Mera, L. Pizarro-Castillo, Mohammad Ashfaq, M. G. Sandoval-Paz, Maria Jose Cortes Burgos, Paulraj Manidurai, S. Suarez
Summary: The CdS/PbS and CdS:Al/PbS thin film solar cells were fabricated using CBD process, with different aluminum dopant concentration in CdS films and solution pH in PbS films. The study found that CdS film with 9% Al doping and PbS film grown at pH 10 showed the highest conversion efficiency, indicating the potential for tuning film properties to enhance solar cell performance.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Engineering, Electrical & Electronic
Asmaa Kadim Ayal, Ayat Khairi Hashim, Ahmed Mudhafar Mohammed, Ahlam Mohammed Farhan, Araa Mebdir Holi, Ying-Chin Lim
Summary: Surface modification of titanium dioxide nanotube arrays with Cu-CdSe can effectively narrow the bandgap, shift the photoresponse towards visible light, and improve the photoefficiency. The optimal performance was achieved with 1-minute deposition of Cu nanoparticles, demonstrating potential for solar conversion devices.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Chao-Nan Chen, Yu-Wu Wang, Ying-Rong Ho, Chia-Ming Chang, Wei-Chieh Huang, Jung-Jie Huang
Summary: This study utilized liquid-phase deposition to fabricate a TiO2 film on anodizing TNT, increasing the length and dye adsorption capacity of the nanotubes, ultimately enhancing the photoelectric conversion efficiency of the DSSC device.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Energy & Fuels
Sajeesh Vadakkedath Gopi, Nicolae Spalatu, Madhawa Basnayaka, Robert Krautmann, Atanas Katerski, Raavo Josepson, Raitis Grzibovskis, Aivars Vembris, Malle Krunks, Ilona Oja Acik
Summary: This work systematically investigates the effect of vacuum and air annealing on the properties of CdS thin films and their impact on the performance of Sb2Se3/CdS solar cells. The study reveals that 200°C air annealing of CdS results in the highest efficiency, boosting the performance of the device by 60%.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Martin Motola, Raul Zazpe, Ludek Hromadko, Jan Prikryl, Veronika Cicmancova, Jhonatan Rodriguez-Pereira, Hanna Sopha, Jan M. Macak
Summary: A reconstruction process of TiO2 nanotube (TNT) layers was conducted to enhance their photoelectrochemical performance and photocatalytic activity. By preparing double-wall (DW) TNT layers, etching the inner wall to obtain single-wall (SW) TNT layers, and coating with TiO2 coatings of different thicknesses, significant improvements were achieved in incident photon-to-electron conversion efficiency and photocatalytic performance compared to untreated TNT layers.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Jinsong Li, Jing Ao, Chongxia Zhong, Tan Yin
Summary: Researchers have developed a TiO2-CNT supercapacitor with high energy density and specific capacitance. The device shows excellent cyclic stability and low leakage current, making it suitable for power supply of portable electronics in the future.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Jiwu Zhao, Qiuying Huang, Zidong Xie, Yuan Liu, Fengkai Liu, Fen Wei, Sibo Wang, Zizhong Zhang, Rusheng Yuan, Kaifeng Wu, Zhengxin Ding, Jinlin Long
Summary: Light-driven valorization conversion of CO2 is an encouraging carbon-negative pathway that shifts energy-reliance from fossil fuels to renewables. A hierarchical urchin-like hollow-TiO2@CdS/ZnS (HTO@CdS/ZnS) Z-scheme hybrid with excellent photocatalytic CO2-to-CO activity was synthesized. This study provides insights for constructing diverse heterostructures for the storage and conversion of renewables and chemicals.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Xinwei Wang, Hong Liu, Wenzhong Shen
Article
Nanoscience & Nanotechnology
Wei He, Zhengping Li, Chao Wen, Hong Liu, Wenzhong Shen
Article
Energy & Fuels
Lixiang Ba, Hong Liu, Wenzhong Shen
PROGRESS IN PHOTOVOLTAICS
(2018)
Article
Chemistry, Multidisciplinary
Liang Tao, Yan Xiong, Hong Liu, Wenzhong Shen
Article
Nanoscience & Nanotechnology
Yuwei Wang, Hong Liu, Wenzhong Shen
NANOSCALE RESEARCH LETTERS
(2018)
Article
Engineering, Electrical & Electronic
Ranran Zeng, Hong Liu, Wenzhong Shen
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Don Ding, Hao Lin, Hong Liu, Guilin Lu, Zhengping Li, Yueheng Zhang, Wenzhong Shen
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2019)
Article
Chemistry, Physical
Tun Wang, Muyuan Xie, Sadeq Abbasi, Zhendong Cheng, Hong Liu, Wenzhong Shen
JOURNAL OF POWER SOURCES
(2020)
Article
Nanoscience & Nanotechnology
Zhendong Cheng, Chao Gao, Jingnan Song, Dong Ding, Yuanyuan Chen, Jiayuan Wang, Dezhao Zhang, Liyan Chen, Xin Wang, Zhibin Yang, Feng Liu, Hong Liu, Wenzhong Shen
Summary: The introduction of an effective ETL modifier Y6 in PSCs has been shown to enhance light absorption, electron extraction and transportability, reduce recombination loss, significantly improve power conversion efficiency, and increase long-term stability without additional alterations.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Tun Wang, Sadeq Abbasi, Xin Wang, Yangrunqian Wang, Zhendong Cheng, Jiayuan Wang, Hong Liu, Wenzhong Shen
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Physical
Tun Wang, Zhendong Cheng, Yulin Zhou, Hong Liu, Wenzhong Shen
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Energy & Fuels
Tun Wang, Dong Ding, Hao Zheng, Xin Wang, Jiayuan Wang, Hong Liu, Wenzhong Shen
Article
Chemistry, Multidisciplinary
Tun Wang, Dong Ding, Xin Wang, Ranran Zeng, Hong Liu, Wenzhong Shen
Article
Chemistry, Multidisciplinary
Feng Zhou, Hong Liu, Xinwei Wang, Wenzhong Shen
ADVANCED FUNCTIONAL MATERIALS
(2017)
Article
Nanoscience & Nanotechnology
Xinwei Wang, Hong Liu, Feng Zhou, Jeremy Dahan, Xin Wang, Zhengping Li, Wenzhong Shen
ACS APPLIED MATERIALS & INTERFACES
(2018)