Article
Chemistry, Applied
Oguzhan Karakurt, Eda Alemdar, Mert Can Erer, Duygu Cevher, Selin Gulmez, Umut Taylan, Sevki Can Cevher, Gonul Hizalan Ozsoy, Bulend Ortac, Ali Cirpan
Summary: Conjugated polymers are promising candidates for scalable photovoltaic applications due to their low cost, lightweight, and flexibility. However, their charge mobility and exciton diffusion length are lower than those of inorganic materials, leading to inefficient charge extraction. This study presents two new approaches to enhance the photovoltaic performance of organic photovoltaic systems: thiol modification of polymers to improve morphology, and incorporation of gold nanoparticles with surface plasmon absorption into the active layer for stabilization by covalent interaction. The results show that the thiol-modified polymer (POxT-SH) achieved the highest JSC and PCE values of 6.52 mA/cm2 and 2.71%, respectively, and the incorporation of gold nanoparticles increased the PCE value to 3.29%, a 21.4% improvement compared to POxT-SH-based organic solar cells.
Article
Materials Science, Multidisciplinary
Anran Zhang, Yangping Zhang, Zhangmeng Liu, Gangan Huang, Lihua Wu, Yunzhi Fu, Xiaomei Wang, Yukou Du
Summary: This article reviews the development of anisotropic gold nanostructures, the properties of gold, and its potential for solar energy applications. It provides a detailed introduction to the stability, optical properties, and hot carrier states of gold. The characteristics of anisotropic gold nanostructures in different morphologies are summarized, and the maximum efficiency of solar light utilization is analyzed.
APPLIED MATERIALS TODAY
(2022)
Article
Nanoscience & Nanotechnology
Yeongkwon Kang, Jung Won Yoon, Seok Woo Lee, Hyungju Ahn, Siwon Yun, Jongchul Lim, Jihoon Lee, Dong Wook Chang, Hyosung Choi, Bong-Gi Kim
Summary: To investigate the effect of miscibility between conjugated polymers (CPs) and Y6 on the morphology of bulk-heterojunction (BHJ) structures, three different CPs with similar chemical structures but varying miscibility with Y6 were studied. The interface morphology and interlocked dimensions were compared quantitatively using a square-wave model after selectively removing Y6 from the CP/Y6 blend films. It was found that as CP-Y6 miscibility increases, a higher intermixed interface is formed, while a decrease in miscibility leads to a decrease in the dimensions formed by phase separation and an increase in width.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Neurosciences
Ali Rahmani, Kyungsik Eom
Summary: Researchers have developed an organic solar cell-based retinal prosthesis embedded with spherical gold nanoparticles to enhance the efficiency of the bioelectric interface. Computational modeling showed that this nanoparticle-enhanced solar cell had three times higher efficiency compared to a bare solar cell. By incorporating gold nanoparticles, the prosthesis can be miniaturized and requires lower light intensity for neural activation.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Ling Hong, Huifeng Yao, Yong Cui, Pengqing Bi, Tao Zhang, Yongxin Cheng, Yunfei Zu, Jinzhao Qin, Runnan Yu, Ziyi Ge, Jianhui Hou
Summary: Establishing an ideal architecture with selective carrier transport and suppressed recombination is crucial for improving photovoltaic efficiency in organic solar cells (OSCs). By tailoring a hybrid planar/bulk structure, highly efficient OSCs with reduced energy losses were fabricated. The study highlights the potential of precisely regulating the structure of donor:acceptor heterojunction to further enhance the efficiencies of OSCs.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Xiuhong Sun, Zhipeng Shao, Zhipeng Li, Dachang Liu, Caiyun Gao, Chen Chen, Bingqian Zhang, Lianzheng Hao, Qiangqiang Zhao, Yimeng Li, Xianzhao Wang, Yue Lu, Xiao Wang, Guanglei Cui, Shuping Pang
Summary: In this study, the open-circuit voltage of Cs-based perovskite solar cells was significantly enhanced by constructing a CsPbI3/Cs(1-x)DMA(x)PbI(3) bulk heterojunction structure, leading to improved charge separation and collection efficiency as well as reduced carrier recombination loss. This research suggests that junction engineering could be a new strategy for efficient perovskite devices.
Article
Polymer Science
Abdallah Y. A. Ahmed, Jude N. N. Ike, Mohammed S. G. Hamed, Genene Tessema Mola
Summary: Silver doped magnesium (Ag:Mg) bimetallic nanoparticles were successfully synthesized for use in thin-film organic solar cells. The addition of these nanoparticles enhanced the photocurrent collection in the photoactive layer, leading to improved device performance. The highest power conversion efficiency (PCE) of 4.11% was achieved at a 1.5 wt% doping level, representing a 79% improvement compared to undoped cells. The localized surface plasmon resonance effect (LSPR) was identified as the key factor for enhancing optical absorption and charge transport processes in the solar cells.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Energy & Fuels
Samir Kumar Sarkar, Lauren J. Kang, Upendra Kumar Pandey, Christine K. Luscombe, Pakkirisamy Thilagar
Summary: A new X-type, structurally twisted, highly soluble TAB-BODIPY based electron acceptor (BDY) was designed and synthesized, leading to a promising power conversion efficiency of 4.46% in organic solar devices. This marks the first reported instance of TAB-BODIPY as a non-fullerene acceptor in the field of organic solar cells.
Article
Chemistry, Physical
William Morton, Caoimhe Joyce, Jonny Taylor, Mary Ryan, Stefano Angioletti-Uberti, Fang Xie
Summary: The research findings suggest that the geometric properties of gold nanostars can be referenced, similar to the way a nanosphere can be described by its radius, instead of solely relying on the local surface plasmon resonance (LSPR) of the structure. The suggested average tip approximation simplifies the complex nature of nanostars in simulations. By comparing the characteristics of modeled nanostars to synthesized nanostars, the volume, surface area, and number of tips can be approximated without the need for extensive characterization. Understanding the nanoparticle geometry can have implications for drug delivery capacity, identification of hot spots for electron microscopy imaging, and the interaction of particles with cells.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Dhanasekaran Vikraman, Hailiang Liu, Sajjad Hussain, K. Karuppasamy, Hae-Kyung Youi, Jongwan Jung, Jungwon Kang, Hyun-Seok Kim
Summary: This study investigates the use of MoO3-MoS2 hybrid active layers in BHJ organic solar cells and photodetectors, which shows higher charge carrier capacity and exciton dissociation properties. The incorporation of MoO3-MoS2 leads to a 38% improvement in power conversion efficiency compared to pure PCDTBT:PCBM active layers, indicating its potential for enhancing organic electronic devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shengfan Wu, Zhen Li, Jie Zhang, Xin Wu, Xiang Deng, Yiming Liu, Jingkun Zhou, Chunyi Zhi, Xinge Yu, Wallace C. H. Choy, Zonglong Zhu, Alex K. -Y. Jen
Summary: Lead halide perovskite and organic solar cells are seen as promising candidates for clean energy applications, but improvements are needed in the near-infrared photon loss and photovoltage deficit. By integrating low-bandgap organic bulk-heterojunction layers into inverted PSCs, high-performance hybrid solar cells can be constructed. These hybrid solar cells demonstrate excellent power conversion efficiency, extended photoresponse, and superior long-term stability compared to single-component PSCs and OSCs. With the highest efficiency reported for flexible solar cells to date, flexible HSCs can be integrated as a power source for wearable sensors, demonstrating real-time temperature monitoring capabilities.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kiran Sreedhar Ram, Hooman Mehdizadeh-Rad, David Ompong, Daniel Dodzi Yao Setsoafia, Jai Singh
Summary: This paper characterises exciton generation in three types of bulk-heterojunction organic solar cells, finding that the optimum thickness of the active layer affects the rate of exciton generation. Simulated results indicate that the inverted non-fullerene BHJ OSC1 shows better short circuit current density, potentially leading to better photovoltaic performance.
Article
Green & Sustainable Science & Technology
Muheeb Ahmad Alkhalayfeh, Azlan Abdul Aziz, Mohd Zamir Pakhuruddin
Summary: The review discusses the use of plasmonic effect to enhance the power conversion efficiency of thin-film polymer or organic solar cells by embedding metal nanoparticles for improved light absorption and charge carrier transport. The position, size, and shape of nanoparticles play a crucial role in significantly improving the efficiency of diverse geometries and design approaches.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Cheolmin Park, Seung Hun Han, Hyeok Jun Jin, Woonggi Hong, Sung-Yool Choi
Summary: In order to solve the image deterioration caused by the pixel miniaturization in high-resolution CMOS image sensor technology, a photodiode with an enhanced mechanism based on a distinctive device structure is needed. This study introduced a photodiode consisting of gold nanoparticles/monolayer graphene/n-type trilayer MoS2/p-type Si bulk, which achieved ultrafast rising/falling times due to the narrow depletion width resulting from the 2D/3D heterojunction. To compensate for the expected low absorbance, plasmonic gold nanoparticles on monolayer graphene were introduced, resulting in broadband enhanced EQE.
Article
Optics
Chahrazed Dridi, Naima Touafek, Ramdane Mahamdi
Summary: In this study, inverted PTB7:PC70BM bulk heterojunction solar cells with various inorganic materials as a hole transport layer were simulated using the GPVDM software. The results showed that reducing the HTM thickness improved the solar cell parameters, while the optimum thickness for the active layer was around 90 nm. Cu2O significantly enhanced the electrical parameters compared to PEDOT:PSS at higher thicknesses.
Article
Chemistry, Multidisciplinary
Kolleboyina Jayaramulu, Michael Horn, Andreas Schneemann, Haneesh Saini, Aristides Bakandritsos, Vaclav Ranc, Martin Petr, Vitalie Stavila, Chandrabhas Narayana, Blazej Scheibe, Stepan Kment, Michal Otyepka, Nunzio Motta, Deepak Dubal, Radek Zboril, Roland A. Fischer
Summary: The study demonstrates the covalent attachment of an amine functionalized metal-organic framework to carboxylate functionalized graphene, resulting in a hybrid material with high capacitance and cycling stability. An asymmetric supercapacitor was successfully constructed using this hybrid material, showing comparable performance to commercial devices such as Pb-acid and Ni/MH batteries. The amide linkage plays a key role in forming a p-conjugated structure, facilitating charge transfer and enhancing capacitance and cycling stability.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Renheng Bo, Mahdiar Taheri, Hongjun Chen, Jonathan Bradford, Nunzio Motta, Sachin Surve, Thanh Tran-Phu, Puneet Garg, Takuya Tsuzuki, Paolo Falcaro, Antonio Tricoli
Summary: A facile and flexible approach for microfabrication of complex MOF patterns on large surfaces is reported in this study. It relies on the gas-phase conversion of patterned ceramic nanoparticle sheets to create monolithic MOF objects with arbitrary shapes and thicknesses up to hundreds of micrometers.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Aditya Ashok, Arya Vasanth, Tomota Nagaura, Miharu Eguchi, Nunzio Motta, Hoang-Phuong Phan, Nam-Trung Nguyen, Joseph G. Shapter, Jongbeom Na, Yusuke Yamauchi
Summary: This study presents a hybrid technique combining bottom-up electrochemical growth and top-down plasma treatment, resulting in the synthesis of mesoporous semiconductors with large crystalline domain sizes and excellent surface passivation. The films showed enhanced stability and optoelectronic properties without incorporating additional chemical or physical layers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Ceramics
Sepideh Madani, Tuquabo Tesfamichael, Hongxia Wang, Nunzio Motta
Summary: The SCAPS solar cell simulation program was used to model an inverted structure of perovskite solar cells using Cu-doped Ni1-xO thin films as the hole transport layer. The properties of the Cu-doped Ni1-xO films have a significant impact on the performance of perovskite solar cells.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Sagar Jadhav, Hong Duc Pham, Chinmayee Padwal, Mahesh Chougale, Cameron Brown, Nunzio Motto, Kostya (Ken) Ostrikov, Jinho Bae, Deepak Dubal
Summary: The research on utilizing MXene in piezoelectric supercapacitors has improved their output voltage and current while enhancing the piezoelectric properties of PVDF.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Negar Zebardastan, Jonathan Bradford, Bharati Gupta, Josh Lipton-Duffin, Jennifer MacLeod, Hong Duc Pham, Deepak Dubal, Kostya Ostrikov, Annalena Wolff, Kailong Hu, Yoshikazu Ito, Carlo Mariani, Maria Grazia Betti, Nunzio Motta
Summary: Layered molybdenum disulphide (MoS2) crystals combined with graphene can create diverse 2D heterostructures for tailored applications. By adjusting growth parameters, different structures of MoS2 were successfully developed. MoS2/NPG shows promising electrochemical performance in potassium ion batteries.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Wei Li, Qingdong Ou, Xiaodong Wang, Kaijian Xing, Tuquabo Tesfamichael, Nunzio Motta, Dong-Chen Qi
Summary: This study reports a scalable NO2 gas sensor based on centimeter-sized single-crystalline alpha-MoO3. The sensor exhibits outstanding sensitivity, selectivity, and reversibility towards NO2, with a limit of detection as low as 5 ppb. The scalability and intrinsic sensing response are demonstrated by fabricating microscale sensor devices on individual exfoliated alpha-MoO3 nanoribbons. The study presents promising opportunities for developing a high-performance gas sensing platform based on crystalline alpha-MoO3.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Wei Li, Mahboobeh Shahbazi, Kaijian Xing, Tuquabo Tesfamichael, Nunzio Motta, Dong-Chen Qi
Summary: In this work, 2D MoS2@MoO3 heterostructures were synthesized and their morphological, structural, and compositional properties were studied. The heterostructures showed room-temperature ferromagnetism and exhibited p-type-like response towards NO2, with excellent selectivity and reversibility. This study demonstrates the promising application of 2D molybdenum hybrid compounds in gas sensing with unique electronic and magnetic properties.
Article
Environmental Sciences
M. R. R. S. van Beest, F. Arpino, O. Hlinka, E. Sauret, N. R. T. P. van Beest, R. S. Humphries, G. Buonanno, L. Morawska, G. Governatori, N. Motta
Summary: The spread of respiratory diseases indoors through aerosol particles is a significant concern. This study investigates the indoor particle spread using a combination of HVAC ventilation and an opening window. The results show that approximately 80% of particles move from one room to the corridor and over 60% move to a nearby room within a short time.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Sepideh Madani, Tuquabo Tesfamichael, Nunzio Motta, Hongxia Wang
Summary: This paper investigates the use of MoOx thin films as interlayer in organic-inorganic hybrid perovskite solar cells (PSCs) to enhance device efficiency and stability. The results show that a 10 nm thick MoOx film provides the best improvement in performance for both lead-based and lead-free PSCs.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Nanoscience & Nanotechnology
Negar Zebardastan, Jonathan Bradford, Josh Lipton-Duffin, Jennifer MacLeod, Kostya (Ken) Ostrikov, Massimo Tomellini, Nunzio Motta
Summary: Face-to-face annealing is an effective method for obtaining epitaxial graphene with precise control over size, quality, growth rate and thickness.
Article
Chemistry, Physical
Ifra Marriam, Mike Tebyetekerwa, Hao Chen, Hiran Chathuranga, Nunzio Motta, Jose A. Alarco, Zhen-Jiang He, Jun-Chao Zheng, Aijun Du, Cheng Yan
Summary: Researchers successfully synthesized few-layer two-dimensional molybdenum disulfide (MoS2) nanosheets, which, when combined with silicon (Si), formed a MoS2@Si heterostructure. This composite anode showed improved electrochemical performance, reducing the volume expansion of Si and achieving exceptional rate and cycling performance, with a capacity retention of 60%.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Green & Sustainable Science & Technology
M. Barclay, K. Firestein, X. Wang, N. Motta, D. Dubal, K. Ostrikov
Summary: Non-thermal atmospheric pressure plasma is used to assist the synthesis of high specific capacitance MnO2 supercapacitor materials, with the addition of plasma-activated water (PAW) providing an efficient approach and promoting hydration of electrode materials. The use of PAW improves both the specific capacitance and cycle stability of the electrodes.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Physical
Suaad A. Alomari, Deepak P. Dubal, Jennifer Macleod, Sagar Jadhav, Chinmayee Padwal, Nunzio Motta
Summary: This study demonstrates the great potential of 3D nitrogen and phosphorus co-doped holey rGO aerogel (NPHG) cathodes for high-performance lithium-ion capacitors by utilizing a simple and low-cost hydrothermal method to fabricate the material.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Imran, Ebtsam Alenezy, Ylias Sabri, Tony Wang, Nunzio Motta, Tuquabo Tesfamichael, Prashant Sonar, Mahnaz Shafiei
Summary: Electrospun tungsten oxide nanofibers show enhanced amperometric sensing response towards low concentrations of acetone. The nanofibers exhibit a monoclinic crystal structure with oxygen vacancies, providing excellent conductivity. The sensor demonstrates high repeatability and the ability to detect acetone down to 10 ppb, with fast response kinetics and excellent selectivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
