Article
Chemistry, Multidisciplinary
Samantha M. Harvey, Daniel W. Houck, Wen Liu, Yuzi Liu, David J. Gosztola, Brian A. Korgel, Michael R. Wasielewski, Richard D. Schaller
Summary: CuInSe2 nanocrystals with tunable near-infrared bandgaps show potential for photovoltaic applications and as substitutes for toxic semiconductor compositions. The presence of ligands during synthesis introduces nonradiative electronic states, impacting carrier dynamics and leading to low photoluminescence quantum yields. Carrier lifetimes are influenced by the type of ligand, with rapid trapping observed in certain cases.
Article
Optics
Gagandeep, Mukhtiyar Singh, Ramesh Kumar, Vinamrita Singh
Summary: The perovskite solar cell structures were optimized by studying the effects of layer thickness, electron affinity, and bandgap. It was found that CuInSe2 nanocrystals act as an efficient inorganic HTL, and defect density is a critical factor affecting cell performance. The optimized power conversion efficiency for solar cells based on CH3NH3PbI3 and CH3NH3SnI3 absorbers were 20.36% and 18.89% respectively.
Article
Chemistry, Physical
A. S. Rasal, Y-H Chen, K. Dehvari, G. Getachew, P-J Tseng, K. Waki, S. Bela, J-Y Chang
Summary: This study reported the preparation of a gel electrolyte using XG and TiO2 NPs to improve the performance of QDSSCs, achieving higher photoconversion efficiencies and stability. XG exhibited thixotropic sol-gel transitions, and the incorporation of TiO2 NPs improved the ionic conductivity of the gel electrolyte, passivating surface trap states or acting as steric hindrance.
MATERIALS TODAY ENERGY
(2021)
Article
Multidisciplinary Sciences
Shalini Menezes, Anura P. Samantilleke, Bryon W. Larson
Summary: Pairing semiconductors with electrochemical processing allows for the in-situ formation of highly-doped, interface-matched nanocrystalline homojunctions on flexible foil. These CISe NHJs exhibit non-linear emissions, quantized transitions, and high carrier mobility, showing potential for optoelectronic applications.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Algimantas Ivanauskas, Remigijus Ivanauskas, Ingrida Ancutiene
Summary: A study was conducted on the deposition of indium-incorporated copper selenide thin films on a glass substrate using the SILAR method. The films showed a mixture of compounds including Se, Cu0.87Se, In2Se3, and CuInSe2, with optical properties corresponding to copper selenide and indium selenide semiconductors.
Article
Engineering, Environmental
Huyen Tran, Syed Dildar Haider Naqvi, Kihwan Kim, Ahreum Lee, Seungju Oh, Yasir Siddique, Asmat Ullah, Shah Syed Fawad Ali, Minwoo Park, Sungjun Hong, Sejin Ahn, Jihye Gwak, Inyoung Jeong
Summary: A facile fabrication strategy of highly efficient and stable wide-bandgap perovskites (PVSKs) was demonstrated through an organic halide surface treatment. The surface post-treatment resulted in the complete conversion of PVSK crystallinity, eliminating segregated secondary phases and reducing unreacted PbI2. The reconstructed PVSK showed enhanced photovoltaic performance and high stability, achieving a power conversion efficiency of 24.5% in a tandem device.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Armel Ignace N. 'guessan, Amal Bouich, Donalfologo Soro, Bernabe Mari Soucase
Summary: In this study, copper indium diselenide (CuInSe2) thin films were deposited on ITO coated glass substrates by electrochemical deposition with different potential and pH solutions. The effects of potential and pH on the structural and optical properties of CuInSe thin films were investigated. The film deposited at -0.8 V potential in the pH 2.4 solution showed the highest power conversion efficiency.
Article
Chemistry, Physical
Ri Ouyang, Yun Huang, Haotian Ye, Zijun Zhang, Hao Xue
Summary: Developing sustainable energy is crucial for achieving carbon neutrality. The emergence of triboelectric nano-generators (TENGs) allows for efficient harvesting of wave energy due to their stability and excellent electrical performance at low frequencies. Researchers have fabricated a simplified copper particles-PTFE tube structured TENG (CP-TENG) that utilizes fluid-like copper particles to expand the contact area and ensure high charge density. Multiple CP-TENG units can be assembled in different arrays to increase output, as demonstrated by a sealed CP-TENG power box that can light up 210 LEDs. This CP-TENG-based energy network presents a new technical approach for blue energy harvesting.
Article
Nanoscience & Nanotechnology
Yijin Wang, Junli Nie, Zhang He, Yuanhong Zhi, Xiaohua Ma, Peng Zhong
Summary: This study reports a composite photothermal membrane based on MXene nanoflakes and copper indium selenide nanoparticles for highly efficient solar-driven interface evaporation in water treatment. The results show that the composite membrane has advantages in improving light-to-heat conversion efficiency and impurity removal ability, and it also exhibits excellent durability and adaptability to light intensity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Liting Tang, Xiaomin Wang, Xinxing Liu, Junjun Zhang, Shaoying Wang, Yuqi Zhao, Junbo Gong, Jianmin Li, Xudong Xiao
Summary: In this paper, a method for passivating interface and grain boundary defects in perovskite solar cells (PSCs) is proposed by dissolving the passivation materials in mixed solvents of IPA and toluene. The performance parameters of PSCs are improved, resulting in an increased power conversion efficiency (PCE). Moreover, a 4-terminal perovskite/CIGS tandem device is achieved with a high PCE, demonstrating the potential of the mixed solvent passivation strategy in enhancing the efficiency and stability of PSCs.
Article
Chemistry, Physical
Genene Tessema Mola, Makhosazane C. Mthethwa, Mohammed S. G. Hamed, Michael A. Adedeji, Xolani G. Mbuyise, Amit Kumar, Gaurav Sharma, Yong Zang
Summary: The study found that adding nickel sulfide nanoparticles to thin film organic solar cells can significantly improve the performance of the solar cells, especially when the NiS concentration is 1%, the power conversion efficiency of the solar cells increases by 93%. The incorporation of nickel sulfide nanoparticles promotes the dissociation of excitons and charge transportation processes, resulting in enhanced short circuit current and PCE.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
C. B. Isabela, Ricardo A. Marques Lameirinhas, Joao Paulo N. Torres, Carlos A. F. Fernandes
Summary: Thin-film modules are becoming popular in the photovoltaic market due to their competitive cost compared to traditional crystalline silicon modules. Among them, CuIn(1-x)GaxSe2 (CIGS) cells are leading the expansion in the market due to their low temperature coefficient and ability to absorb UV and IR radiation. Comparative studies among different photovoltaic technologies, including theoretical comparisons, simulations, and experimental tests, show that CIGS performance is approaching that of silicon cells.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Analytical
Dong-Seok Shin, Tae-Ho Kim, Jeong-Eun Rah, Dohyeon Kim, Hye Jeong Yang, Se Byeong Lee, Young Kyung Lim, Jonghwi Jeong, Haksoo Kim, Dongho Shin, Jaeman Son
Summary: This study proposes a dose measurement system based on a flexible CIGS solar cell, demonstrating good dosimetric characteristics such as dose linearity, rate and energy independence, and field size output.
Article
Energy & Fuels
Elizabeth Palmiotti, Sylvain Marsillac, Angus Rockett
Summary: This study compares and evaluates the metal halide treatments of CdTe films and CIGS, finding that CdTe films have lower manufacturing costs, while CIGS requires higher temperatures and lower rates to achieve high efficiency. Silver halides are beneficial for the transport of all species, while compounds containing gallium and indium may pose some issues. Copper compounds have low vapor pressure but exhibit high mobility in CIGS.
PROGRESS IN PHOTOVOLTAICS
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Dong-Seok Shin, Tae-Ho Kim, Jeong-Eun Rah, Se Byeong Lee, Young Kyung Lim, Jonghwi Jeong, Haksoo Kim, Dongho Shin, Jaeman Son
Summary: The purpose of this study is to propose a novel flexible skin dosimeter based on a thin-film copper indium gallium selenide (CIGS) solar cell and evaluate its dosimetric characteristics. The CIGS solar cell dosimeter showed good performance in terms of dose measurement linearity, sampling rate effect, dose rate dependence, energy dependence, and field size output factor. It is a low-cost dosimeter that can be easily customized, providing advantages over other dosimeters.
Article
Engineering, Multidisciplinary
M. E. Harikumar, Sudip K. Batabyal
Summary: In this study, a hydrogen-bonded complex network structure of Pectin/PEG composite was designed to create a free-standing film functioning as a temperature-sensing device. The addition of PEG improved the film's flexibility and conductivity, resulting in a high-throughput device that operated at a low voltage. The fabricated device exhibited good stability and had an average sensitivity of 1.3-2.7 mu A/degrees C over the temperature range of 30 degrees C to 42 degrees C, with a fast response time of 2 s +/- 5%.
JOURNAL OF BIONIC ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Swapnika Suresh, Mohan Raj Subramaniam, Sobhan Hazra, Bhola Nath Pal, Sudip K. Batabyal
Summary: This study focuses on the emissive properties of Cs4PbBr6 perovskite materials. The experimental results show that the Cs4PbBr6 microcrystals exhibit good stability and can be used for color conversion, backlighting, and light-emitting applications.
Article
Nanoscience & Nanotechnology
Huei Min Chua, Natalia Yantara, Yeow Boon Tay, Suriani Abdul Latiff, Subodh Mhaisalkar, Nripan Mathews
Summary: This study investigates the mitigation of energy level mismatch and exciton quenching caused by PEDOT:PSS in PeLEDs through the addition of work-function-tunable PSS Na to the PEDOT:PSS hole-transport layer (HTL). The addition of 6% PSS Na improves the external quantum efficiency and prolongs the operation stability of blue and sky-blue PeLEDs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Sujith Lal, Sudip K. Batabyal
Summary: A novel three-dimensional tubular hydrovoltaic device using activated carbon has been developed, capable of generating stable voltage and current. It can provide nearly 600 µW of power for 1.2 g of active materials and has shown excellent self-life and self-charging ability after one year of experiment. This low-cost device holds great potential for practical applications.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
M. Dhakshnamoorthy, A. Kathirvel, S. Mohan Raj, Venkata Ramayya Ancha, Mulualem Abebe, Sudip K. Batabyal
Summary: The surface modification of CsPbBr3 perovskite using camphor sulfonic acid (CSA) enhanced the photoluminescence emission, photoresponse, and photodetectivity. A self-powered photodetector was fabricated using a perovskite FTO/c-TiO2/CsPbBr3-CSA/Carbon composite, which exhibited high photoresponsivity and detectivity under white light with excellent stability.
Article
Polymer Science
M. E. Harikumar, Sudip K. Batabyal
Summary: Implantable energy storage devices that are soft, flexible, biocompatible, and biodegradable are the focus of current bio-instrumentation research. Polymer gel-based electrodes using pectin biopolymer with a biocompatible electrolyte were proposed as a flexible, transparent, and biodegradable electrode for supercapacitors. The incorporation of graphite greatly improved the stability and retention of capacitance in the pectin-based electrodes. The study showed that pectin biopolymer-based electrodes have the potential to be powerful in developing flexible and portable solid-state energy storage systems.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Energy & Fuels
Senyun Ye, Haixia Rao, Minjun Feng, Lifei Xi, Zhihao Yen, Debbie Hwee Leng Seng, Qiang Xu, Chris Boothroyd, Bingbing Chen, Yuanyuan Guo, Bo Wang, Teddy Salim, Qiannan Zhang, Huajun He, Yue Wang, Xingchi Xiao, Yeng Ming Lam, Tze Chien Sum
Summary: By processing metal and ammonium halides together, Ye et al. expand the metal cation library for low-dimensional interface materials of perovskite solar cells. Three-dimensional/low-dimensional perovskite solar cells show improved efficiency and stability. This research provides greater flexibility and synthetic control for the design of low-dimensional capping materials.
Article
Engineering, Electrical & Electronic
Durga Prasad Muvva, Sudip Kumar Batabyal, Ghanashyam Krishna Mamidipudi
Summary: A simple solution phase synthesis of large-scale BiI3 single crystalline hexagonal plates with dominant (001) facets is reported. These BiI3 nanoplatelets have attractive properties for visible light photodetectors due to their large size, high surface-to-volume ratio, and thickness. The photodetector performance includes a photoresponsivity of 0.87 A W-1 at 1 V bias and specific detectivity of 4.8 x 10(12) jones, with fast response rise and fall times of 1 s and 0.97 s, respectively. The study also reveals the surface potential difference between the sample and substrate, making these hexagonal platelets promising for visible light photodetection applications.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Longcan Chen, Wendian Yao, Tong Su, Ruihan Xu, Shuhui Wan, Jielin Yang, Xiaoniu Peng, Dehui Li, Hui Yuan, Yingshuang Fu, Xina Wang
Summary: In this work, heterobilayered and heteromultilayered SnS2/MoS2 vdWhs were prepared to study the correlation between electron-phonon coupling (EPC) and valley depolarization. The results showed that the E-2g(1) mode of MoS2 in the vdWhs exhibited a red shift, and the vibration intensity transitioned from isotropic to anisotropic. The valley depolarization of the MoS2 in the vdWhs was found to be layer-dependent, and a strong EPC effect also resulted in layer-dependent Raman shifts.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xingchi Xiao, Liang Cheng, Di Bao, Qi Ying Tan, Teddy Salim, Cesare Soci, Elbert E. M. Chia, Yeng Ming Lam
Summary: Singlet fission (SF) materials have been used to improve the power conversion efficiency (PCE) of solar cells. However, SF implementation in perovskite solar cells has not been successful due to the lack of understanding of the SF/perovskite heterojunctions. In this study, the charge dynamics between a well-known SF molecule, TIPS-pentacene, and a triple-cation perovskite Cs-0.05(FA(0.85)MA(0.15))(0.95)PbI2.55Br0.45 were investigated. The results show that there is an electron-transfer process from TIPS-pentacene to perovskite, leading to an increase in carrier density in the perovskite layer. This study confirms the potential of SF-enhanced perovskite solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Zhihao Yen, Teddy Salim, Chris Boothroyd, Peter Ferdinand Haywood, Cheng-Tai Kuo, Sang-Jun Lee, Jun-Sik Lee, Deok-Yong Cho, Yeng Ming Lam
Summary: This study demonstrates a new application of Cu-doped MILD-synthesized Ti3C2Tx MXene for urea removal. Cu doping increases the affinity of MXene for urea due to the formation of Cu-urea complexes. Cu-doped MXene follows monolayer adsorption on a homogeneous surface model.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Edita Joseph, Sudip K. Batabyal
Summary: Self-powered photodetectors were fabricated using a simple, cost-effective method, with CdS as a photoactive layer and carbon as a hole transport layer. The performance of the photodetectors was studied by depositing various thicknesses of CdS layers on an FTO coated glass substrate using the SILAR method. The resulting device exhibited a responsivity of 0.11 ⨯10- 3 A/W and fast rise and fall times of 0.16s and 0.12s, respectively.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Nanoscience & Nanotechnology
Xinglin Wen, Yunxi Zhou, Sijie Chen, Wendian Yao, Dehui Li
Summary: By utilizing a new mechanism of near-field interference, directional routing of valley exciton emission of monolayer WSe2 can be achieved with a symmetric nano-slits array. This provides a convenient and promising strategy towards on-chip integrated valleytronic devices at room temperature.
Article
Chemistry, Multidisciplinary
A. Malavika, Swapnika Suresh, Mohan Raj Subramaniam, Sudip K. Batabyal
Summary: This study investigates the stability of Mn2+-doped CsPb(Br1-xClx)(3) quantum dots and evaluates their performance by fabricating a photodetector device. The results show that CsPb(Br1-xClx)(3) quantum dots doped with 0.7 mmol Mn2+ exhibit better stability and faster photoresponse.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Swapnika Suresh, Hridya C. Prakash, M. Sathish Kumar, Sudip K. Batabyal
Summary: In this study, manganese-doped polyaniline was synthesized and used as a material for supercapacitor electrodes. The experiment demonstrated that the manganese-doped polyaniline exhibited high capacitance performance and cycling stability, making it suitable for supercapacitor applications.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
