Article
Chemistry, Multidisciplinary
Yao Gao, Guanchao Yin, Martina Schmid
Summary: In this study, three methods of sodium (Na) incorporation into solution-processed CISSe solar cells were investigated: pre-deposition treatment (Pre-DT), pre-selenization treatment (Pre-ST), and post-selenization treatment (PST). The Pre-ST method showed the best PV performance, achieving a maximum efficiency of 9.6%. Compared to the reference group, the Pre-ST CISSe devices showed improvements in open-circuit voltage, short-circuit current density, fill factor, and efficiency. Additionally, reductions in open-circuit voltage deficit, back contact barrier, and bulk recombination were observed for Pre-ST CISSe.
Article
Energy & Fuels
Shaotang Yu, Jingjing Jiang, Shuaiqi Han, Shasha Hao, Qiang Zhu, Yuancai Gong, Weibo Yan, Wei Huang, Hao Xin
Summary: The low temperature fabrication of CISSe absorber through carefully engineering the structure of precursor film has shown better morphology and higher photovoltaic performance compared to the absorber fabricated using a normal structure. This method demonstrates the feasibility of producing efficient chalcopyrite solar cells via precursor solution in low temperature selenization.
Article
Energy & Fuels
Sunil Suresh, Daniel Abou-Ras, Towhid H. Chowdhury, Alexander R. Uhl
Summary: A deposition route using dimethylformamide (DMF) and thiourea (TU) is utilized to fabricate CuIn(S,Se)(2) (CISSe) films with narrow bandgap and different Cu/In ratios for photovoltaic applications. The characterization of the films indicates the removal of copper-selenide phases from the film surface, but remnant copper-selenides still exist in the absorber layer bulk. Contrary to vacuum-processed cells, stoichiometric film compositions yield high-efficiency devices with large-grained absorber layers and smooth surfaces.
Review
Chemistry, Physical
Sunil Suresh, David J. Rokke, Amandine A. Drew, Essam Alruqobah, Rakesh Agrawal, Alexander R. Uhl
Summary: This article reviews the extrinsic doping concepts for CIGSSe-type absorbers fabricated by ink-based deposition routes, compares the performance of select high-efficiency ink-based devices, and offers an outlook for future process development. It suggests that the mechanisms of ink-based absorbers are fundamentally different from vacuum-based processes and require further investigation.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Ceramics
Nandang Mufti, Atika Sari Puspita Dewi, Rosita Kartika Putri, Saparullah, Ahmad Taufiq
Summary: The synthesis of a thin-film CIGS layer using a simple spray coating method and selenization process is crucial in CIGS solar cell technology. The study found that the temperature of selenization affects the morphology, thickness, and optical properties of the CIGS films. Additionally, an increase in selenization temperature leads to changes in Selenium deficiency and bandgap energy.
CERAMICS INTERNATIONAL
(2022)
Article
Crystallography
Wilman Septina, Yoshihito Kawasaki, Takashi Harada, Shigeru Ikeda
Summary: Selenium-rich CuIn(S,Se)2 (CISSe) thin films were fabricated on a Mo-coated glass substrate using a spray pyrolysis method. The addition of low-concentration NaNO3 to the precursor solution effectively improved the crystallinity of the Cu-poor CuInS2 precursor film, resulting in an improved grain growth and larger grain sizes in the final CISSe film. As a result, the solar cell based on this CISSe film achieved a significantly improved conversion efficiency of 2.66% compared to only 0.28% without the addition of Na. Increasing the CISSe film thickness to 2.2 µm further improved the conversion efficiency to 4.35%.
JOURNAL OF CRYSTAL GROWTH
(2023)
Article
Environmental Sciences
Sreekanth Mandati, Prashant Misra, Divya Boosagulla, Narasinga Rao Tata, Sarada V. Bulusu
Summary: CIGS absorbers prepared by direct current electrodeposition process are selenized in a tubular furnace at 550 degrees C in elemental selenium atmosphere using Ar as carrier gas, with the evacuation of tube prior to selenization affecting the formation of CIGS absorbers. Solar cells fabricated using vacuum-based selenization show improved performance compared to non-vacuum selenization, indicating potential for environmentally friendly low-cost solar cells.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Ceramics
Tianxiang Zhou, Jie Huang, Yushan Wang, Quanbin Liu, Shuyi Han, Bin Yao, Yuhong Jiang, Yongfeng Li, Yang Liu
Summary: By adding an AZTSe layer to traditional solar cells, the open circuit voltage and power conversion efficiency can be significantly increased, making it a potentially effective method.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Xinyu Li, Chengfeng Ma, Naiyun Liu, Chunxu Xiang, Shuxia Wei, Weibo Yan, Wei Huang, Hao Xin
Summary: Plasma treatment of the Mo substrate improves the efficiency of solution-processed CISSe solar cells by modifying the back interface and enhancing the absorber quality. The treatment increases the wettability of the substrate, resulting in more compact and uniform precursor film. It also reduces the thickness of the high resistive layer and decreases charge carrier recombination, leading to improved solar cell efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Energy & Fuels
Xiaowei Zhou, Chao Gao, Hao Luo, Zhiwei Liu, Haixu Liu, Haifeng Gao, Qing Zhou, Wenbo Li, Xiaoyun Teng, Wei Yu
Summary: In this study, a modified preparation process for Cu2ZnSn(S,Se)(4) (CZTSSe) films was reported, which involved depositing Al2O3 capping layers on precursor films before selenization. The capping layers prevented the formation of separate CuxSe phase on top of the film and promoted a homogeneous growth of the crystalline grains during selenization, leading to CZTSSe films with improved solar cell efficiencies, particularly an increase in the open-circuit voltage by approximately 18%.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Energy & Fuels
Hongling Guo, Rutao Meng, Long Hu, Chun-Ho Lin, Yali Sun, Yue Liu, Jianyu Wu, Zhan Shen, Dewei Chu, Gang Wang, Li Wu, Guangxing Liang, Shifu Xiong, Fangfang Liu, Yi Zhang, Tom Wu
Summary: The study demonstrates an effective strategy of accurately adjusting the Sn content in CZTSSe films by optimizing the selenization pressure, with negative pressure of 0.7 atm showing the best results. The research paves the way towards highly efficient kesterite solar cells by tailoring composition-dependent defects.
Article
Nanoscience & Nanotechnology
David Payno Zarcenno, Maxim Guc, Samrana Kazim, Alejandro Perez-Rodriguez, Shahzada Ahmad
Summary: The increasing demand for solar energy necessitates the use of earth-abundant materials for cost-effective production. Cu2CdSn-(S,Se)(4), a light harvester with this property, is shown to have potential for functional solar cells. Thin films of Cu2CdSn-(S,Se)(4) were deposited using environmentally friendly solvents, reducing costs and enabling use in semitransparent or tandem solar cells. The introduction of selenium in the composition improves the solar cell performance, and a device with Cu2CdSn-(S2.8Se1.2) composition achieved a 3.5% conversion efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yajin Mi, Yanchun Yang, Guonan Cui, Junting Ren, Yanqing Liu, Xin Zhao, Xiao Tian, Tana Bao, Yiming Wang, Shuyu Li, Chengjun Zhu
Summary: This study reports on the optimization of annealing conditions in a two-step selenization process for improving the structure of an ionic liquid solution-based Cu2ZnSn(S,Se)4 absorber and enhancing the performance of solar cells. The optimal two-step process, LT400-10&HT550-10, achieves the highest efficiency of 9.24% for CZTSSe solar cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Engineering, Electrical & Electronic
Yatir Sadia, Itamar Lifshitz, Daniel Sebaoun, Yaniv Gelbstein
Summary: This study investigates the thermoelectric properties of materials based on the chalcopyrite structure. The properties can be controlled by doping with different types and concentrations of dopants. CuInS2 exhibits n-type behavior, which can be changed to p-type by doping with Cd and Ni. CuInSe2 shows n-type behavior, but can also be changed to p-type by doping with Cd and Ni. CuInTe2 has improved thermoelectric performance with low concentrations of Cd doping.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Thermodynamics
M. F. B. Stodt, Jan Derk Groeneveld, Lutz Maedler, Johannes Kiefer, Udo Fritsching
Summary: This study investigates the occurrence of in-flight droplet microexplosions (mu-explosions) during flame spray pyrolysis and confirms the findings through single drop experiments. It is found that there are distinct mu-explosions happening at high frequencies during the synthesis of iron oxide nanoparticles. This finding is significant for understanding the role and relevance of mu-explosions in the production and formulation of functional nanoparticles.
COMBUSTION AND FLAME
(2022)
Article
Materials Science, Multidisciplinary
Ashna K. Pramod, Mohan Raj Subramaniam, Samuel A. Hevia, Sudip K. Batabyal
Summary: The study successfully synthesized lead-free Cs3Sb2Cl3Br6 microcrystals and fabricated a selfpower photodetector using Cs3Sb2Cl3Br6 and carbon materials with fast response time and high responsivity.
Review
Chemistry, Multidisciplinary
Shreyash Hadke, Menglin Huang, Chao Chen, Ying Fan Tay, Shiyou Chen, Jiang Tang, Lydia Wong
Summary: Chalcogenide semiconductors have excellent optoelectronic properties for use in solar cells, with a focus on emerging binary, ternary, and quaternary chalcogenides. The review analyzes their performance metrics, electronic band structure, and point defect characteristics, while also discussing potential pathways for practical applications in solar energy harvesting.
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)
Review
Nanoscience & Nanotechnology
Shaoni Kar, Ken Kaushal, Natalia Yantara, Subodh G. Mhaisalkar
Summary: This article summarizes some of the best approaches to optical modeling for perovskite-based devices, including ellipsometry measurements and various simulation techniques. It identifies challenges to achieving higher accuracy data and provides insights on future trends.
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
Chemistry, Multidisciplinary
E. Erdenebileg, N. Tiwari, F. U. Kosasih, H. A. Dewi, L. Jia, N. Mathews, S. Mhaisalkar, A. Bruno
Summary: Metal oxides, such as non-stoichiometric nickel oxide (NiOx), have been widely used in thin film solar cells for their suitable energy band levels, high charge carrier mobilities, and excellent stability. In this study, we demonstrate the fabrication of co-evaporated perovskite solar cells (PSCs) with sputtered NiOx as the hole transport layer. We investigate the impact of sputtering conditions on the physical properties of NiOx and achieve highly efficient PSCs using optimized conditions.
MATERIALS TODAY CHEMISTRY
(2023)
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
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
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)
Article
Nanoscience & Nanotechnology
Sathish M. Kumar, Yamini K. Yasoda, Puspendu Das, Sudip Malik, Nikhil K. Kothurkar, Sudip K. Batabyal
Summary: A polyaniline-carbon quantum dots nanocomposite material was synthesized using a unique synthesis technique. The material exhibited ridge-like morphology and uniformly distributed carbon quantum dots, and showed enhanced specific capacitance and cyclic stability in electrochemical experiments.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2022)