Article
Chemistry, Applied
Yuzhang Xiao, Zehua He, Hai Jiang, Kunyuan Zuo, Qiang Guo, Yanfang Geng, Yingliang Liu, Erjun Zhou
Summary: The development of A-DA'D-A non-fullerene acceptors (NFAs) has driven the progress of organic solar cells (OSCs), especially those using D-A type polymers as electron donors. However, the use of A-DA'D-A NFAs to accelerate the development of P3HT devices is still uncertain, as only limited BT-based A-DA'D-A molecules have been used in P3HT-based devices.
Article
Materials Science, Multidisciplinary
Liang Xu, Liping Qi, Kehong Li, Helin Zou
Summary: In this study, a concise method based on high-resolution E-jet printing was developed to fabricate nano-nozzles, enabling high-resolution printing of a range of low-viscosity inks. The experiment demonstrated that lines as small as 140 nm can be achieved using the nano-nozzle. These results highlight the compatibility of E-jet printing with high resolution and showcase the potential of the developed polymer nano-nozzles to significantly expand the scope of E-jet printing applications.
MATERIALS & DESIGN
(2023)
Review
Polymer Science
Allison Abdilla, Colton A. D'Ambra, Zhishuai Geng, Jaeman J. Shin, Michael Czuczola, David J. Goldfeld, Souvagya Biswas, Jodi M. Mecca, Steven Swier, Thomas D. Bekemeier, David S. Laitar, Morgan W. Bates, Christopher M. Bates, Craig J. Hawker
Summary: Polymer blending is a cost-effective method to control the properties of soft materials, but the tendency for blends to macrophase separate has led to the development of efficient compatibilization strategies. This review focuses on advanced polysiloxane compatibilization strategies for silicone-organic polymer blends, emphasizing the importance of chemical innovation for accelerating the commercialization of new silicone-organic materials. Hybrid silicone blends are expected to remain significant in both fundamental and applied materials science in industry and academia.
JOURNAL OF POLYMER SCIENCE
(2021)
Article
Biophysics
Francisco Narciso, Sara Cardoso, Nuno Monge, Madalena Lourenco, Victor Martin, Noelia Duarte, Catarina Santos, Pedro Gomes, Ana Bettencourt, Isabel A. C. Ribeiro
Summary: Infections associated with medical device surfaces are a significant concern due to biofilm formation and antibiotic resistance. This study presents a 3D-printed antimicrobial chitosan-biosurfactant hydrogel mesh that can coat silicone-based medical devices to prevent infections. The mesh structure allows for the incorporation of customized bioactive components, and the biosurfactant sophorolipids showed better antibacterial activity compared to surfactin. The resulting coatings demonstrated strong antibacterial and antibiofilm activity against Staphylococcus aureus while still being biocompatible with human dermal fibroblasts.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Review
Polymer Science
Buddhima Rupasinghe, Joseph C. Furgal
Summary: This article discusses the importance of siloxane polymers and the progress in related research. Studies have shown that the degradation and recycling of siloxanes are still in their infancy, while controlling the rupture of the siloxane bond to form specific products has become a research goal.
POLYMER INTERNATIONAL
(2022)
Article
Energy & Fuels
Eduardo Henrique dos Santos Rosa, Edemir Luiz Kowalski, Luiz Felipe Ribeiro Barrozo Toledo
Summary: This study simulates the power conversion efficiency of organic solar cells (OSCs) and optimizes the thickness of the active layer for better efficiency. By comparing the simulated efficiency results with real data, there is an average increase of 16% in efficiency.
Article
Polymer Science
E. M. Mkawi, Y. Al-Hadeethi, R. S. Bazuhair, A. S. Yousef, E. Shalaan, B. Arkook, A. M. Abdeldaiem, Rahma Almalki, E. Bekyarova
Summary: In this study, polymer solar cells were synthesized by incorporating Sb2S3 nanocrystals in the active layer and the dependence of device performance on nanocrystal concentration was investigated. The results showed that introducing Sb2S3 nanocrystals improved light absorption, regulated energy levels, and enhanced electronic parameters by offering additional excited electron pathways through the nanocrystals. These findings demonstrate the potential of Sb2S3 nanocrystals for improving the efficiency of organic photovoltaic devices.
Article
Chemistry, Applied
Yafeng Liu, Xiaoyuan Chen, Min Zhang, Ruofei Hao, Songting Tan
Summary: Two copolymer donors, VT and VDT, based on TVT and TTVTT derivatives, were synthesized and applied for OSCs. The extension of conjugation was found to affect the optical and electronic properties, molecular aggregation, charge separation, and overall photovoltaic performances. OSCs based on VDT:Y6 and VT:Y6 achieved optimal PCEs of 12.67% and 8.85%, respectively, without any additives or post-solvent/thermal annealing processes. These results highlight the effectiveness of extending the π-electron delocalization of copolymer donors to enhance device performances.
Article
Chemistry, Multidisciplinary
A. S. Steparuk, R. A. Irgashev, E. F. Zhilina, G. L. Rusinov, S. A. Petrova, D. S. Saranin, A. E. Aleksandrov, A. R. Tameev
Summary: ISC 1-4 are four new compounds with a D-pi-A structure, exhibiting good thermal stability, optical properties, and electronic properties. These compounds are applicable for high-efficiency perovskite solar cells.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Young Kyeong Kim, Tack Ho Lee, Jiwoo Yeop, Woo Jin Byun, Jin Hyun Kim, Jin Young Kim, Jae Sung Lee
Summary: By developing a hetero-tandem organic photovoltaic device, high-efficiency and stable solar hydrogen production system can be achieved.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Bao Zhang, Jianfeng Li, Ailing Tang, Yanfang Geng, Qiang Guo, Erjun Zhou
Summary: Polymerizing small-molecule acceptor with a weak electron-deficient unit, benzo[d] [1,2,3]-triazole, led to the synthesis of a high-efficient polymer acceptor A702, which achieved a high PCE of 11.84%. The heptacyclic ring containing BTA unit proved to be an attractive option for building efficient polymer acceptors.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Yahui Liu, Bowen Li, Chang-Qi Ma, Fei Huang, Guitao Feng, Hongzheng Chen, Jianhui Hou, Lingpeng Yan, Qingya Wei, Qun Luo, Qinye Bao, Wei Ma, Wei Liu, Weiwei Li, Xiangjian Wan, Xiaotian Hu, Yanchun Han, Yaowen Li, Yinhua Zhou, Yingping Zou, Yiwang Chen, Yongfang Li, Yongsheng Chen, Zheng Tang, Zhicheng Hu, Zhi-Guo Zhang, Zhishan Bo
Summary: In recent years, organic solar cells (OSCs) have made significant progress with power conversion efficiencies (PCEs) over 18%, showing promising practical applications. Key research focuses in the OSC field include development in material science and interface materials. The article systematically summarizes the recent progress in these areas and discusses current challenges and future developments.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Biophysics
Nguyen-Phuong-Dung Tran, Ming-Chien Yang, Phuong Lan Tran-Nguyen
Summary: Silicone hydrogel lenses were prepared by copolymerizing PDMS-PEGMA macromer (PGP) with various substances, showing higher water uptake ability and oxygen permeability. They also exhibited good optical transparency, anti-protein deposition, and non-cytotoxicity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Chemistry, Physical
Tong Liu, Yang Zheng, Yunxiang Xu, Xianjie Liu, Chuanfei Wang, Liangmin Yu, Mats Fahlman, Xiaoyi Li, Petri Murto, Junwu Chen, Xiaofeng Xu
Summary: This study introduces a monolithic hybrid device by integrating high-performance semitransparent polymer solar cells (ST-PSCs) and liquid-solid triboelectric nanogenerators (TENGs). The hybrid device achieves high solar conversion efficiency and transparency, enabling efficient light-to-electricity conversion on sunny days and waterdrop energy conversion on rainy days. It also provides controlled ambient temperature and specific transmittance windows for plant growth, showcasing its potential in agricultural applications.
Review
Energy & Fuels
Beibei Qiu, Jing Lai, Jun Yuan, Yingping Zou, Yongfang Li
Summary: With the development of narrow-bandgap A-D-A and A-DA'D-A-type small-molecule acceptors (SMAs), polymer solar cells (PSCs) have achieved significant progress, reaching an impressive power conversion efficiency (PCE) of up to 20%. To realize the future commercial application of organic photovoltaic (OPV) technology, the development of more efficient organic conjugated materials is urgently needed. The random copolymerization strategy has received great attention and played a vital role in the development of PSCs due to its advantages in precisely adjusting the optoelectronic materials. This review briefly discusses the functions of the random copolymerization strategy in modulating the polymer properties and presents the recent research progress of this strategy in PSCs. Furthermore, it provides perspectives and a concise outlook on the further advancement of the random copolymerization strategy.
Article
Chemistry, Multidisciplinary
Kanwar S. Nalwa, John A. Carr, Rakesh C. Mahadevapuram, Hari K. Kodali, Sayantan Bose, Yuqing Chen, Jacob W. Petrich, Baskar Ganapathysubramanian, Sumit Chaudhary
ENERGY & ENVIRONMENTAL SCIENCE
(2012)
Article
Materials Science, Multidisciplinary
Rakesh C. Mahadevapuram, John A. Carr, Yuqing Chen, Sayantan Bose, Kanwar S. Nalwa, Jacob W. Petrich, Sumit Chaudharya
Article
Energy & Fuels
Shailendra Kumar Gupta, Jyoti Yadav, Neha Chaturvedi, Rahul Ranjan, L. Sowjanya Pali, Kanwar Singh Nalwa, Ashish Garg
Summary: Thermal annealing benefits DIO-containing PTB7:PC71BM thin film blends, with significant performance improvement observed at 40 degrees Celsius for 1 hour, while a significant decrease in FF is seen at 80 degrees Celsius. The performance degradation at higher temperatures (such as 80 degrees Celsius) for both with and without DIO devices may be due to unfavorable morphology distribution.
Article
Energy & Fuels
Belal Usmani, Rahul Ranjan, Prateek, Shailendra Kumar Gupta, Raju Kumar Gupta, Kanwar Singh Nalwa, Ashish Garg
Summary: The incorporation of gold nanoparticles into zinc oxide electron transport layers in organic solar cells can enhance light absorption and improve carrier collection efficiency, ultimately leading to significantly improved device performance.
Article
Energy & Fuels
Rahul Ranjan, Sudhir Ranjan, Monali Monalisa, Kanwar Singh Nalwa, Anand Singh, Ashish Garg, Raju Kumar Gupta
Summary: By incorporating organic and inorganic additives in the photo-absorber layer, excellent thermal and moisture stability of MAPI solar cells has been achieved, resulting in significant improvement in the life time and efficiency of unencapsulated planar devices.
Article
Energy & Fuels
L. Sowjanya Pali, Jeetendra Kumar Tiwari, Nasir Ali, Subhasis Ghosh, Kanwar S. Nalwa, Ashish Garg
Summary: This study focuses on the integration of a MoO3/Au/MoO3 multilayered electrode with organic solar cells, demonstrating improved optical and electrical characteristics. The results show that the MoO3/Au/MoO3 electrode enhances light coupling and conductivity, leading to a significant increase in photovoltaic performance on opaque steel substrates.
Article
Chemistry, Physical
Sudhir Ranjan, Rahul Ranjan, Ankit Tyagi, Kewal Singh Rana, Ajay Soni, Hari Krishna Kodali, Vikram Dalal, Anand Singh, Ashish Garg, Kanwar Singh Nalwa, Raju Kumar Gupta
Summary: Low-temperature solution processed planar perovskite solar cells (PSCs) using MW-TiO2 as an ETL demonstrate improved efficiency, flexibility, and stability due to the reduced defects, enhanced conductivity, and alleviated strain.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Daksh Agarwal, Rakesh Potnuru, Chiranjeev Kaushik, Vinay Rajesh Darla, Kaustubh Kulkarni, Ashish Garg, Raju Kumar Gupta, Naveen Tiwari, Kanwar Singh Nalwa
Summary: This paper reviews the critical aspects and research advancements of liquid metal batteries, including heat and mass transfer, electric potential, instabilities, high temperature sealing, and battery state. Understanding these aspects is crucial for the optimization of design and operating conditions of liquid metal batteries, leading to their accelerated scaling and commercialization.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Energy & Fuels
Shreyansh Yadav, Maaroof Abdul Kareem, Hari Krishna Kodali, Daksh Agarwal, Ashish Garg, Amit Verma, Kanwar Singh Nalwa
Summary: All-perovskite tandem solar cells offer a way to increase the efficiency beyond the limits of single junction perovskite cells. This study presents an optoelectronic model for monolithic all-perovskite tandem solar cell, accurately describing the photophysical and optoelectronic processes. The model's results are verified and design rules are established to achieve greater than 30% efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Physical
M. Dinachandra Singh, Chiranjeev Kaushik, Joseph Nishanth, Ajay Vijay Shinde, Raju Gupta, Naveen Tiwari, Kanwar S. Nalwa
Summary: Liquid metal battery (LMB) has the potential to be used in grid-scale energy storage systems. This study focuses on reducing the operating temperature of LMB below 300 degrees C by adjusting the composition of electrodes and electrolytes. By increasing the LiCl content in the electrolyte (5-30 Mol%), the battery's overpotential decreases (0.9-0.3 V) and the energy efficiency of the charge-discharge process improves (14.5%-80.9%). The optimized LMB with 30 Mol% LiCl in the electrolyte exhibits good cyclability, high discharging voltage plateau, charge storage capacity, and a low operating temperature of 275 degrees C, which is the lowest reported so far in a Zn-based LMB system.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Pranjul Bhatt, Amit Kumar, Neha Singh, Ashish Garg, Kanwar Singh Nalwa, Abhishek Tewari
Summary: Partial substitution of CH3NH3 (+) with Cs+ ions has been investigated to suppress iodide vacancy diffusion in MAPI and enhance structural stability. Atomistic simulations and experimental characterization were performed to study the defect chemistry and halide ion mobility in Cs-doped MAPI. The results showed weak dependence of defect clustering and diffusion activation energy on stoichiometry, and confirmed the reduced hysteresis and higher activation energy of halide migration in Cs-doped MAPI.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Vishal Ranawade, Kanwar Singh Nalwa
Summary: This study investigates the performance of a multilayer phase change materials (PCMs) system in managing the temperature of PV modules. The results demonstrate that the multilayer PCMs system can effectively reduce the temperature of the modules, increase the yearly electric output, and extend the lifespan of the PV modules.
Article
Materials Science, Multidisciplinary
Joseph Nishanth, Dinachandra Singh, Santu Panja, T. Mani Chandran, Kumar Brajesh, Shobit Omar, Kanwar S. Nalwa
Summary: The crystallinity of PVDF has a significant impact on the performance of Li-ion batteries, and a higher crystallinity PVDF binder can improve cycling performance and initial capacity.
OXFORD OPEN MATERIALS SCIENCE
(2023)
Article
Materials Science, Biomaterials
Lokesh Yadav, Anjali Yadav, Shovon Chatterjee, Suhela Tyeb, Raju Kumar Gupta, Pratik Sen, Bushra Ateeq, Vivek Verma, Kanwar S. Nalwa
Summary: Fluorescent polyaniline nanoparticles (FPNs) were synthesized through a facile solid-state synthesis method, which exhibited water solubility, pH-sensitive red fluorescence, high photoluminescence quantum yield (PLQY), and excellent biocompatibility. FPNs can potentially be used as fluorescent nanoprobes in bioimaging applications, and their pH dependence and potential ratiometric pH sensing capability were also investigated.
BIOMATERIALS ADVANCES
(2022)
Review
Chemistry, Physical
Naveen Kumar Tailor, Yukta, Rahul Ranjan, Sudhir Ranjan, Tejasvini Sharma, Anand Singh, Ashish Garg, Kanwar Singh Nalwa, Raju Kumar Gupta, Soumitra Satapathi
Summary: This review article focuses on the quantification of carrier mobility in perovskites with dimensional transformation and crystallinity, as well as the fundamental mobility limiting factors and recent advancements in the field, with a special emphasis on reduced dimensional perovskites and single crystal systems. The challenges and possible pathways for mobility enhancement in perovskites are also discussed in detail.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
