Article
Chemistry, Physical
Linqing Liu, Lizhe Jia, Yanhong Huang, Yu Zhang, Wei Yu
Summary: In this paper, a solar cell based on the VGNW/silicon Schottky junction is doped by Nafion and exhibits high power-conversion efficiency after Ar plasma etching. The Nafion doping scheme effectively increases the work function of VGNW films and reduces its average reflectance. However, the Nafion capping layer on the VGNWs after doping influences the carriers electrical transportation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Runnan Yu, Guangzheng Wu, Yong Cui, Xueqi Wei, Ling Hong, Tao Zhang, Chao Zou, Siqian Hu, Jianhui Hou, Zhan'ao Tan
Summary: The study demonstrates hierarchical morphology control in Layer-by-Layer (LBL) organic photovoltaic (OPV) cells using a dual functional solid additive. By individually or simultaneously introducing the solid additive to the donor or acceptor layer, preferable vertical component distribution and enhanced molecular crystallinity were achieved, leading to high power conversion efficiencies of 16.4% and 17.4% in binary and quaternary LBL devices. This approach offers an alternative method to manipulate the morphology of LBL OPV cells for improved efficiency and stability.
Article
Chemistry, Physical
Pran Krisna Das, Ramesh Poonchi Sivasankaran, Maheswari Arunachalam, Kanase Rohini Subhash, Jun-Seok Ha, Kwang-Soon Ahn, Soon Hyung Kang
Summary: Tantalum nitride nanotubes are a promising material for visible-light absorption in photoelectrochemical solar water oxidation, but they suffer from self-oxidation issues. By coating a thin layer of g-C3N4 on the surface, the performance can be significantly improved, resulting in excellent photostability and PEC activity of the photoelectrode.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Ziyuan Li, Li Li, Fan Wang, Lei Xu, Qian Gao, Ahmed Alabadla, Kun Peng, Kaushal Vora, Haroldo T. Hattori, Hark Hoe Tan, Chennupati Jagadish, Lan Fu
Summary: The absorption and photoresponse of nanowires in arrays are influenced by the array geometry and surrounding environment, highlighting the importance of array design for practical applications.
Article
Nanoscience & Nanotechnology
Anjan Mukherjee, Dingding Ren, Aleksander Buseth Mosberg, Per-Erik Vullum, Antonius T. J. van Helvoort, Bjorn-Ove Fimland, Helge Weman
Summary: Through electrical measurements and structural characterization of a radial p-i-n junction GaAs nanowire array solar cell grown on a silicon substrate, it was found that the solar cell suffers from high leakage current density and poor efficiency due to defects, electrical non-uniformity, and electrical shorting between the GaAs shell of the nanowires and the silicon substrate. This study provides valuable insights for improving the structural design of radial junction nanowire array solar cells in order to enhance the photoconversion efficiency.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaoying Lu, Hua Li, Yantao Wang, Junfeng Huang, Cailing Xu
Summary: In this study, amorphous ReS2 nanosheets anchored on TiO2 nanowires were constructed, showing high NRR performance, attributed to the amorphous feature of ReS2 nanosheets, rich oxygen vacancies in TiO2 nanowires, and their semiconducting properties.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Han-Wen Zhang, Yan-Gang Bi, Dong-Ming Shan, Zhi-Yu Chen, Yi-Fan Wang, Hong-Bo Sun, Jing Feng
Summary: Flexible perovskite solar cells (FPSCs) have attracted attention for their potential applications in next generation electronics, but the current transparent conductive electrodes (TCEs) hinder their flexible performance. In this study, a hybrid electrode (PUA/AgNWs/PH1000) consisting of a thin layer of silver nanowires (AgNWs) on a flexible substrate (PUA) modified with a conductive layer (PH1000) was proposed. This electrode showed high optical transmittance, electrical conductivity, and mechanical flexibility. When used in FPSCs, the ITO-free devices with the hybrid electrode exhibited desired flexibility and mechanical stability, retaining 77.4% of their initial power conversion efficiency after 10,000 bending cycles with a bending radius of 5 mm.
Article
Chemistry, Multidisciplinary
Cheng Chen, Bin Zhao, Rui Wang, Zhen He, Jin-Long Wang, Mingke Hu, Xin-Lin Li, Gang Pei, Jian-Wei Liu, Shu-Hong Yu
Summary: Solar thermoelectric devices, with their unique ability to convert waste heat and solar energy into electricity, play a significant role in addressing the problem of global warming. In this study, a flexible 3D Janus helical ribbon architecture was designed, which showed all-day electricity generation, large temperature gradient, and even generated electricity at night. This strategy offers a new way for heat management by efficiently utilizing solar energy and the cold of the universe.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Mohammed Abdelhameed, Mostafa F. Abdelbar, Mohamed Esmat, Wipakorn Jevasuwan, Naoki Fukata
Summary: This study investigates the hole-injection characteristics of dopant-free vanadium oxide (VOx) semiconductor thin films. The crystal structure of solution-processable VOx films changes with different annealing atmospheres. The VOx films show effective hole-injection properties due to their high work function, wide band gap, and presence of oxygen deficiencies. The vacuum-annealed VO2-x (B) film exhibits the best hole-injection ability. The use of VOx films as hole-injection layers has significant implications for the development of low-cost and durable electronics and optoelectronics devices.
Article
Optics
Sajad Haghanifar, Paul W. Leu
Summary: We conducted a detailed balance analysis on vertical GaAs nanowire arrays using rigorous coupled-wave analysis (RCWA). Both freestanding and arrayed nanowires on a perfect back reflector were evaluated. Both types of vertical nanowire arrays demonstrated efficiencies surpassing the Shockley Queisser (SQ) or radiative efficiency limit when the nanowires were long enough. The implementation of a back reflector enhanced the efficiency of nanowire solar cells by increasing solar absorption and suppressing emission from the backside of the solar cell. We studied the advantages of light trapping and material reduction in nanowires. Furthermore, we compared the simulations evaluating detailed balance efficiency with ultimate efficiency and showed that ultimate efficiency studies can determine near-optimal solar cells while significantly reducing the number of simulations needed. Although open circuit voltages above the radiative limit can be achieved, tradeoffs with short circuit current must be carefully considered. We also compared our simulation results to claims in the literature that nanowires are capable of exceeding the SQ limit.
Article
Nanoscience & Nanotechnology
Soheil Mobtakeri, Saman Habashyani, Emre Gur
Summary: MoO3 is a promising material for various device applications due to its layered structure and different oxidation states. However, obtaining nanostructures of metal oxides by radio frequency magnetron sputtering (RFMS) is challenging. In this study, alpha-MoO3 nanowalls were successfully obtained by a two-step process and used for H-2 gas sensors. The effect of Pd deposition on the sensing properties of the sensors was investigated, achieving outstanding response and recovery times. The gas-sensing mechanism was explored through gasochromic measurements.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jae Ho Kim, Seok-Ju Yoo, Daseul Lee, Jin Woo Choi, Sang-Cheol Han, Tae In Ryu, Hyung Woo Lee, Myunghun Shin, Myungkwan Song
Summary: Fiber-shaped dye-sensitized solar cells (FDSSCs) have the potential to be future flexible or wearable power sources, with Ag@SiO2 NPs improving the power conversion efficiency (PCE) of solid-state FDSSCs. SS-FDSSCs demonstrate good operational stability within a certain temperature range, maintaining efficiency above 90% after multiple bending and washing cycles.
Article
Chemistry, Physical
Kyusun Kim, Ziang Wu, Jiye Han, Yue Ma, Sangsu Lee, Sung-Kwang Jung, Jin-Wook Lee, Han Young Woo, Il Jeon
Summary: The development of fullerene derivatives with excellent solubility in polar solvents has enabled the successful integration of fullerenes into perovskite solar cells, leading to a high device efficiency of 23.34%. The novel approach of forming an overcoat on an electron-transporting layer and allowing the fullerene derivatives to gradually permeate into the perovskite active film has proven effective in enhancing charge transfer and achieving a favorable vertical gradient in fullerene-doped perovskite solar cells.
ADVANCED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Seo Yun Kim, Ramesh Sivasankaran, Maheswari Arunachalam, Geon Hee Lee, Duck Hyun Youn, Soon Hyung Kang
Summary: A novel Mo2C/n-Si nanowire photoanode was fabricated for solar water oxidation. The Mo2C nanoparticles were uniformly deposited on the Si NW surface, leading to significantly enhanced photocurrent density. The Mo2C co-catalyst was found to boost charge transfer events, contributing to improved photoelectrochemical activity.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Editorial Material
Chemistry, Physical
Kaitlyn T. VanSant, Adele C. Tamboli, Emily L. Warren
Summary: Kaitlyn VanSant has a diverse academic background, focusing on research in solar cell design and applications of perovskite solar cells.
Article
Geriatrics & Gerontology
Giulio E. Lancioni, Nirbhay N. Singh, Mark F. O'Reilly, Jeff Sigafoos, Fiora D'Amico, Dominga Laporta, Maria Giovanna Cattaneo, Antonella Scordamaglia, Katia Pinto
AMERICAN JOURNAL OF ALZHEIMERS DISEASE AND OTHER DEMENTIAS
(2018)
Article
Chemistry, Analytical
Beant Kaur Billing, Mayank, Prabhat K. Agnihotri, Narinder Singh
Article
Chemistry, Analytical
Jagpreet Singh Sidhu, Ashutosh Singh, Neha Garg, Navneet Kaur, Narinder Singh
Article
Chemistry, Medicinal
Jatinder Singh, Ramanpreet Shah, Dhandeep Singh, Amteshwar S. Jaggi, Nirmal Singh
ARCHIV DER PHARMAZIE
(2018)
Article
Plant Sciences
G. Ramakrishna, Parampreet Kaur, Deepti Nigam, Pavan K. Chaduvula, Sangita Yadav, Akshay Talukdar, Nagendra Kumar Singh, Kishor Gaikwad
Article
Food Science & Technology
Shalini Trehan, Narpinder Singh, Amritpal Kaur
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2018)
Article
Food Science & Technology
Mehak Katyal, Amardeep Singh Virdi, Narpinder Singh, Amritpal Kaur, J. C. Rana, Jyoti Kumari
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2018)
Article
Chemistry, Physical
Narinder Kaur, Pushap Raj, Amanpreet Singh, Narinder Singh, Deuk Young Kim
JOURNAL OF MOLECULAR LIQUIDS
(2018)
Review
Pharmacology & Pharmacy
Lovedeep Singh, Ritu Kulshrestha, Nirmal Singh, Amteshwar Singh Jaggi
KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY
(2018)
Article
Chemistry, Multidisciplinary
Meenakshi Verma, Amanpreet Kaur, Harpreet Kaur, Navneet Kaur, Narinder Singh
Article
Chemistry, Analytical
Jagpreet Singh Sidhu, Ashutosh Singh, Neha Garg, Navneet Kaur, Narinder Singh
Article
Multidisciplinary Sciences
Manukumara Manjappa, Prakash Pitchappa, Navab Singh, Nan Wang, Nikolay I. Zheludev, Chengkuo Lee, Ranjan Singh
NATURE COMMUNICATIONS
(2018)
Article
Multidisciplinary Sciences
Tapan Kumar Mondal, Hukam Chand Rawal, Soni Chowrasia, Deepti Varshney, Alok Kumar Panda, Abhishek Mazumdar, Harmeet Kaur, Kishor Gaikwad, Tilak Raj Sharma, Nagendra Kumar Singh
SCIENTIFIC REPORTS
(2018)
Article
Food Science & Technology
Nouratan Singh, Poonam Rani, Neeraj Tandan, Dinesh Kumar Arya, Ansuman Mahato
Summary: An Ultra-High-Performance Liquid Chromatography (UHPLC) method was developed and validated for the analysis of 16 PAH compounds in soil samples from Manesar, India. The study found that PAH concentrations were highest in the winter season in industrial areas, while the lowest levels were observed during the monsoon season. The PAH levels in Manesar were relatively lower compared to Brazil, UK, Germany, and Korea.
JOURNAL OF MICROBIOLOGY BIOTECHNOLOGY AND FOOD SCIENCES
(2022)
Article
Mathematical & Computational Biology
Poonam Rani, Nouratan Singh, Monika Bhaskar, Neeraj Tandan
Summary: This study surveyed the microbial community and their antibiotic profiling in the domestic environment of rural and urban areas in Meerut city, India. The results revealed a higher bacterial load compared to fungal load, with kitchens being more contaminated than living rooms. The dominant bacteria were Pseudomonas sps, Citrobacter sps, Bacillus Subtilis, Brevundimonas diminuta, Bacillus megaterium, and Klebsiella pneumoniae. Antibiotic resistance was mainly derived from plasmids.
