Article
Materials Science, Ceramics
U. Chalapathi, P. Uday Bhaskar, Rajesh Cheruku, S. Sambasivam, Si-Hyun Park
Summary: Ternary chalcostibite (CuSbS2) thin-film solar cell material was synthesized by sulfurizing Cu/Sb/Cu precursor stacks at 450 degrees C for 1-10 min. The films exhibited direct band gap of 1.42 eV and hole mobility of 0.44-0.56 cm(2) V-1 s(-1). Solar cells fabricated using the CuSbS2 films sulfurized for 5 min achieved a maximum power conversion efficiency of 2.5%.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Faraz Khavari, Nishant Saini, Jan Keller, Jes K. Larsen, Kostiantyn Sopiha, Natalia M. Martin, Tobias Torndahl, Charlotte Platzer Bjorkman, Marika Edoff
Summary: A new method of sulfur grading in CuInSe2 thin-film solar absorbers is proposed by introducing an ultrathin sacrificial CuInS2 layer. The sulfur grading phenomenon is observed in the Se- and SeS-treated samples, and the formation of mixed CuIn(S,Se)2 phase is confirmed. The treated bilayer samples show higher optical bandgap and V-OC, but exhibit lower efficiency due to the blocking effect of internal electron barrier.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Physics, Condensed Matter
L. Boulkaddat, A. Soussi, H. Najih, K. Abouabassi, A. Ait Hssi, N. Labchir, A. Elfanaoui, R. Markazi, K. Bouabid, A. Ihlal
Summary: Absorbent CuInS2 layers were successfully prepared using an electrodeposition technique, and the effects of sulfurization time on the properties of samples were investigated. The resulting films exhibited a polycrystalline chalcopyrite structure and showed good optical performance.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Electrochemistry
Haruka Shimizu, Junji Sasano, Pei Loon Khoo, Masanobu Izaki
Summary: A metallic Cu layer with a sheet resistance of 0.19 omega was chemically prepared on a glass substrate, and the reduction reactions of Cu(OH)(2) and Cu(O, S) were discussed based on thermodynamics.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Engineering, Electrical & Electronic
Yaobin Li, Shurong Wang, Hua Liao, Xinyu Li, Xin Xu, Shui Yang
Summary: By intentionally introducing oxygen into the Cu-Zn-Sn precursors, CZTS films with smooth surfaces and no pinholes were successfully fabricated. Additionally, the formation of MoS2 was suppressed by introducing ZnO as a barrier layer during the sulfurizing process. Optimizing the sulfurization temperature also led to an increase in short circuit current density and open circuit voltage of the CZTS solar cells, resulting in a conversion efficiency of 4.97% with improved performance.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Mehdi Dehghani, Ershad Parvazian, Nastaran Alamgir Tehrani, Nima Taghavinia, Mahmoud Samadpour
Summary: A novel two-step low-temperature CuInS2 film deposition method is demonstrated in this study, which involves depositing In2S3 first and then partially converting it to CuInS2 through the infiltration of Cu+ ions. The resulting films are uniform and show diffraction peaks indicating the formation of pure CuInS2 phase. The proper stoichiometry of CuInS2 layers is confirmed by various analyses, and the power conversion efficiency of the CuInS2 solar cell reaches 2.11%, the highest reported efficiency for this type of device structure.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Energy & Fuels
Junsu Han, Ming Zhao, Daming Zhuang, Hanpeng Wang, Hao Tong, Shengye Tao, Liangzheng Dong, Mengyao Jia, Yafei Wang
Summary: This work demonstrates the effects of aluminum and aluminum oxide on the formation process of Cu(InAl)Se2 (CIASe) thin films. Through a series of experiments, the optimal conditions for obtaining excellent adhesion and electrical properties of CIASe thin films were identified. A 2.4 μm-thick CIASe thin film with strong adhesion to the Mo-coated substrate was successfully obtained, and a CIASe solar cell with an efficiency of 7.7% was fabricated. The study highlights the great potential of the two-step fabrication approach for CIASe thin film production.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Nanoscience & Nanotechnology
Mohit Sood, Jakob Bombsch, Alberto Lomuscio, Sudhanshu Shukla, Claudia Hartmann, Johannes Frisch, Wolfgang Bremsteller, Shigenori Ueda, Regan G. Wilks, Marcus Baer, Susanne Siebentritt
Summary: In devices based on Zn(O,S)/CuInS2, interface recombination is mainly caused by defects near the interface rather than unfavorable energy-level alignment or Fermi-level pinning. Research has shown that the dominant recombination channel is present at the Zn(O,S)/CuInS2 interface.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Physics, Applied
Zixi Chen, Yuya Sakuraba, Yoshio Miura, Zehao Li, Taisuke Sasaki, Hirofumi Suto, Varun K. Kushwaha, Tomoya Nakatani, Seiji Mitani, Kazuhiro Hono
Summary: This study investigates the effects of off-stoichiometric compositional variations on the electronic structure of the Co2Fe(Ga0.5Ge0.5) full-Heusler alloy. First-principles calculations predict that Co-Fe defects introduce a finite density of states in the half-metallic gap, while Fe-Co defects preserve the gap but reduce spin polarization. Experimental results confirm that Ge-excess in Fe-excess CFGG enhances spin polarization. By adjusting the Fe and Ge compositions, the formation of secondary phases can be suppressed.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Energy & Fuels
Fang- Lai, Jui-Fu Yang, Wei-Chun Chen, Yu-Chao Hsu, Shou-Yi Kuo
Summary: By depositing metal precursors on fluorine-doped tin oxide substrates and modifying the number of stacked metallic precursor layers, the study analyzed the effect of cation changes on the absorber layer and the solar cell properties of CZTSe. It also prepared a cadmium-free bifacial CZTSe solar cell using an all-vacuum method and conducted damp heat tests. The findings show that increasing the number of stacked metallic precursor layers enhances the film performance and bifacial solar cell characteristics.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Physics, Condensed Matter
Xin Liu, Xinyu Li, Xiang Li, Qiulian Li, Daoyong Zhang, Na Yu, Shurong Wang
Summary: Cu2SnS3 (CTS) thin films prepared by sulfurization exhibit good performance in solar cells, with the highest power conversion efficiency of 3.68%, as well as high short-circuit current density and peak external quantum efficiency.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Chemistry, Physical
Yong Joo Kim, Jong Woong Park, Woo Chul Kim, Jeong Soo Kim, Won Tae Kim, Do Hyang Kim
Summary: The addition of boron improves the glass forming ability and thermal stability of Ti35Zr15Ni40Cu10 metallic glass, leading to outstanding superelasticity after crystallization. Boron plays a significant role in maintaining a stable supercooled liquid and refining grain size in the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
U. Chalapathi, P. Reddy Prasad, Sangaraju Sambasivam, K. Mallikarjuna, P. Rosaiah, Salh Alhammadi, Ammar M. Tighezza, Krithikaa Mohanarangam, Si-Hyun Park
Summary: In this study, Cu3BiS3 thin films with different properties were synthesized by controlling the Cu/Bi ratio, and it was found that films with near-stoichiometric composition exhibited better performance and were suitable for use as absorber layers in solar cells.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Neslihan Akcay, Valery F. Gremenok, Yunus Ozen, Konstantin P. Buskis, Ellen P. Zaretskaya, Suleyman Ozcelik
Summary: A two-step process was used to prepare Cu2SnS3 films in this study, and the sulfurization time was found to significantly affect the films' structural, morphological, optical, and electrical characteristics. The films were found to exhibit two structural polymorphs of Cu2SnS3. The fabrication of devices using In2S3/Cu2SnS3 stacks showed slightly enhanced efficiency with annealing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yogesh Prabhu, Abhilasha Jain, S. Vincent, W. H. Ryu, E. S. Park, Ranjeet Kumar, Ashutosh D. Bagde, Jatin Bhatt
Summary: This study aims to design metallic glasses for surgical equipment by replacing toxic aluminum with titanium. By using thermodynamic modeling and statistically controlled atomic arrangement, the researchers successfully synthesized titanium-based metallic glasses with improved corrosion resistance and in vitro biocompatibility. Various characterization techniques were employed to analyze the structure, glass stability, and mechanical properties of the metallic glasses.
Article
Materials Science, Multidisciplinary
S. A. Vanalakar, G. L. Agawane, S. W. Shin, H. S. Yang, P. S. Patil, J. Y. Kim, J. H. Kim
Article
Energy & Fuels
Na Kyoung Youn, Ganesh L. Agawane, Dahyun Nam, Jihye Gwak, Seung Wook Shin, Jin Hyeok Kim, Jae Ho Yun, SeJin Ahn, Ara Cho, Young Ju Eo, Seung Kyu Ahn, Hyeonsik Cheong, Dong Hwan Kim, Kee-Shik Shin, Kyung Hoon Yoon
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2016)
Article
Chemistry, Multidisciplinary
M. P. Suryawanshi, S. W. Shin, G. L. Agawane, K. V. Gurav, U. V. Ghorpade, C. W. Hong, M. A. Gaikwad, P. S. Patil, Jin Hyeok Kim, A. V. Moholkar
ISRAEL JOURNAL OF CHEMISTRY
(2015)
Article
Chemistry, Physical
Ganesh L. Agawane, Seung W. Shin, Sharadrao A. Vanalakar, Mahesh P. Suryawanshi, Annasaheb V. Moholkar, Jin H. Kim
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2015)
Article
Materials Science, Ceramics
Tanaji V. Kolekar, Nanasaheb D. Thorat, Hemraj M. Yadav, Veeresh T. Magalad, Mahesh A. Shinde, Sneha S. Bandgar, Jin H. Kim, Ganesh L. Agawane
CERAMICS INTERNATIONAL
(2016)
Article
Engineering, Environmental
V. V. Ganbavle, S. I. Inamdar, G. L. Agawane, J. H. Kim, K. Y. Rajpure
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Chemistry, Multidisciplinary
Archana Kamble, Bhavesh Sinha, Sharad Vanalakar, Ganesh Agawane, Myeng Gil Gang, Jin Young Kim, Pramod Patil, Jin Hyeok Kim
Article
Chemistry, Physical
Archana Kamble, Bhavesh Sinha, Ganesh Agawane, Sharad Vanalakar, In Young Kim, Jin Young Kim, Sampat S. Kale, Pramod Patil, Jin Hyeok Kim
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2016)
Article
Energy & Fuels
Sharadrao A. Vanalakar, Sawanta S. Mali, Ganesh L. Agwane, Arachana Kamble, In Y. Kim, Pramod S. Patil, Jin Y. Kim, Jin H. Kim
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2016)
Article
Materials Science, Ceramics
K. Linganna, G. L. Agawane, Ju H. Choi
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2017)
Article
Chemistry, Multidisciplinary
K. Linganna, G. L. Agawane, Jung-Hwan In, June Park, Ju H. Choi
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2018)
Article
Engineering, Electrical & Electronic
G. L. Agawane, S. A. Vanalakar, A. S. Kamble, A. V. Moholkar, J. H. Kim
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2018)
Proceedings Paper
Crystallography
K. Linganna, G. L. Agawane, Jung-Hwan In, June Park, Ju H. Choi
PHOTONIC FIBER AND CRYSTAL DEVICES: ADVANCES IN MATERIALS AND INNOVATIONS IN DEVICE APPLICATIONS XII
(2018)
Article
Materials Science, Multidisciplinary
S. A. Vanalakar, G. L. Agawane, A. S. Kamble, P. S. Patil, J. H. Kim
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2017)
Article
Materials Science, Ceramics
G. L. Agawane, K. Linganna, Jung-Hwan In, June Park, Ju H. Choi
CERAMICS INTERNATIONAL
(2017)