Article
Chemistry, Physical
Pamela Machado, Roger Guzman, Ramon J. . Morera, Jordi Alcala, Anna Palau, Wu Zhou, Mariona Coll
Summary: The need for highly performant and stable p-type transparent electrodes based on abundant metals is driving research on perovskite oxide thin films. Cost-efficient and scalable solution-based techniques are being explored to prepare these materials and extract their full potential.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Christina M. Chang, Luke M. Davis, Eliza K. Spear, Roy G. Gordon
Summary: Copper halides are high-mobility p-type transparent conductors, suitable for thin film optoelectronic devices. Researchers have developed a new CVD method to prepare CuBr thin films, opening up the possibility of a general route for CVD of other metal halides.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Alexander Weiss, Jacqueline Goldmann, Sakari Kettunen, Georgi Popov, Tomi Iivonen, Miika Mattinen, Pasi Jalkanen, Timo Hatanpaa, Markku Leskela, Mikko Ritala, Marianna Kemell
Summary: This study demonstrates a scalable and conformal deposition of copper iodide (CuI) thin films using atomic layer deposition (ALD). The two-step ALD process, involving deposition of CuO and subsequent conversion to CuI using HI vapor, results in phase-pure, uniform, and high-purity CuI films. The successful deposition of CuI on various substrates and its application in diode structures and perovskite solar cells suggests that the ALD-based approach offers a viable alternative for depositing transparent conductive p-type CuI thin films in complex high aspect ratio structures and large substrate areas.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Physical
Tong Li, Masaya Ichimura
Summary: Magnesium hydroxide (Mg(OH)2) thin films were successfully deposited using the drop-dry deposition (DDD) method with a thickness of 1-2 μm. The films showed high transmittance in the visible range, a bandgap of approximately 5.8 eV, and semiconductor properties.
Article
Materials Science, Multidisciplinary
Pablo Darnige, Yohann Thimont, Lionel Presmanes, Antoine Barnabe
Summary: In this study, the thermal stability of gamma-CuI thin films was investigated. Post deposition annealing at different temperatures under argon and air atmospheres was conducted to stabilize and optimize the optoelectronic and thermoelectric performances of the material. The experiments revealed that annealing under argon at 300 ? followed by air at 150 ? achieved the best electrical conductivity and p-type degenerative semiconductor behavior of the gamma-CuI thin films. A new coefficient of performance for transparent thermoelectric materials (COPTTE) was proposed and calculated to be 8.3 x 10(-12) A(2) m(-1) K-2 at room temperature for the stabilized gamma-CuI thin film.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Zheng Lu, Hu Zhou, Chao Ye, Shi Chen, Jinyan Ning, Mohammad Abdul Halim, Sardor Burkhanovich Donaev, Shenghao Wang
Summary: Iron pyrite is a promising material for photovoltaics due to its low cost, stability, non-toxicity, and abundance. Electrochemical deposition is a cost-effective method suitable for large-scale production of iron pyrite solar cells. Sulfurization is essential in synthesizing high-quality iron pyrite films for low-cost and large-scale fabrication of iron pyrite solar cells.
Article
Materials Science, Multidisciplinary
Chenhui Li, Penglai Gong, Jinxing Zheng, Minglin Zhao, Renhuai Wei, Wangping Cheng, Ling Hu, Wenhai Song, Xuebin Zhu, Yuping Sun
Summary: Researchers have successfully designed and fabricated a high-performance p-type 4d transition metal Rh-based CuRhO2 film using a facile solution method, achieving high room-temperature conductivity of 735 S cm(-1) through the substitution of 10%Mg in Rh sites. Additionally, the acceptor-doped CuRhO2 films exhibit high near-infrared transmittance and low room-temperature sheet resistance. The electronic structure, electrical transport mechanism, and intra-band excitation feature of the CuRhO2 film have also been unveiled, making a significant advancement in p-type TC films.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jihye Kang, Mansoureh Keikhaei, Tong Li, Masaya Ichimura
Summary: This study successfully fabricated novel conductive p-type and n-type Cu-doped Mg(OH)(2) thin films using different electrochemical deposition methods, and constructed a p-n homojunction with high transmittance and rectification properties.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Multidisciplinary
Aishanee Sur, Joe D. Simmons, Andrew A. Ezazi, Kyle J. Korman, Subham Sarkar, Ethan T. Iverson, Eric D. Bloch, David C. Powers
Summary: The study demonstrates the versatile platform of optically transparent, porous salt thin films for solid-state photochemistry and in operando spectroscopy. Photolysis efficiently reduces Mn-(III) sites to Mn-(II) sites.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Biotechnology & Applied Microbiology
Bih-Show Lou, Wei-Ting Chen, Wahyu Diyatmika, Jong-Hong Lu, Chen-Te Chang, Po-Wen Chen, Jyh-Wei Lee
Summary: This study discusses the critical processing parameters for achieving high antimicrobial ability, transparent, and anatase rich TiO2 films using HiPIMS and the superimposed HiPIMS and medium frequency (MF) magnetron sputtering techniques.
CURRENT OPINION IN CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Sujun Guan, Tianzhuo Zhan, Liang Hao, Shunji Kurosu, Tomofumi Ukai, Xinwei Zhao, Takaomi Itoi, Yun Lu
Summary: This study reports the fabrication of potassium-incorporated transparent zinc oxide (K-ZnO) thin films by subjecting ZnO thin films to high-pressure molten-salt treatment (hp-MST) in potassium nitrate (KNO3), which successfully led to p-type semiconductor films. The change in oxygen vacancies and carrier type with increasing hp-MST temperature suggests successful potassium incorporation into the surface of the ZnO thin films. This study introduces a simple and efficient alternative strategy for homojunction semiconductors that can be used to prepare next-generation highly efficient semiconductor devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Physics, Multidisciplinary
Chen Zhou, Wang-Ping Cheng, Yuan-Di He, Cheng Shao, Ling Hu, Ren-Huai Wei, Jing-Gang Qin, Wen-Hai Song, Xue-Bin Zhu, Chuan-Bing Cai, Yu-Ping Sun
Summary: This study investigates the potential of Bi2Sr2CuO y and Bi2Sr1.8Nd0.2CuO y thin films as p-type transparent conductors. The results demonstrate that the Bi2Sr1.8Nd0.2CuO y thin film exhibits high transmittance and conductivity.
Article
Engineering, Electrical & Electronic
L. T. Quispe, L. B. Avila, A. A. Linhares, E. O. Lopez, Alexandre Mello, I. S. Brandt, A. A. Pasa
Summary: In this study, p-type NiO films with different resistivity values were successfully obtained by electrodeposition of Ni(OH)(2) layers and subsequent heat treatment at different temperatures. Characterizations revealed a phase change from hexagonal beta-Ni(OH)(2) to cubic NiO with improved crystallinity at higher heating temperatures. Additionally, the electrical resistivity of the films increased with higher heat treatment temperatures.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Nikita Gagrani, Kaushal Vora, Chennupati Jagadish, Hark Hoe Tan
Summary: This study investigates the characteristics and applications of p-type transparent conducting oxides (TCOs) through the deposition of SnxNiyOz films. The study explores the optical and electrical properties, band alignment, and stability of the films, as well as the behavior of LEDs using these materials. The results demonstrate the potential of SnxNiyOz as a high-performance p-type TCO for transparent electronics and optoelectronics applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Christopher L. Hassam, Flavien Sciortino, Ngan T. K. Nguyen, Bhuvanesh Srinivasan, Katsuhiko Ariga, Franck Gascoin, Fabien Grasset, Takao Mori, Tetsuo Uchikoshi, Yohann Thimont, David Berthebaud
Summary: Polyethylenimine-stabilized Sb2S3 thin films prepared via electrophoretic deposition show strong adhesion, controllable thickness, and improved optical properties after annealing. The materials exhibit reduced band gap and increased refractive index and carrier concentration, demonstrating the potential of EPD for rapidly creating stable thin films.
ACS APPLIED ENERGY MATERIALS
(2021)
