Article
Materials Science, Multidisciplinary
Laya Dejam, Slawomir Kulesza, Jamshid Sabbaghzadeh, Atefeh Ghaderi, Shahram Solaymani, Stefan Talu, Miroslaw Bramowicz, Mitra Amouamouha, Amir Hossein Salehi Shayegan, Amir Hossein Sari
Summary: In this study, thin films of undoped ZnO, ZnO doped with Al, ZnO doped with Cu, and co-doped ZnO with Al and Cu were deposited on quartz substrates using RF sputtering. The samples were investigated for their advanced fractal features, crystalline structure, and optical properties. The results showed that the films had different morphologies and transmission spectra, with the co-doped sample exhibiting the highest transparency in the visible region and a desirable band gap.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Victor V. Petrov, Irina O. Ignatieva, Maria G. Volkova, Irina A. Gulyaeva, Ilya V. Pankov, Ekaterina M. Bayan
Summary: Transparent Al-doped ZnO films were synthesized by solid-phase pyrolysis and characterized by XRD, SEM, and TEM. The films exhibit wurtzite structure and have a uniform distribution of nanoparticles. The introduction of 1% Al results in a narrowed band gap and improved response time to radiation.
Article
Materials Science, Multidisciplinary
Wen Lei, Yingjie Yu, Haijun Zhang, Quanli Jia, Shaowei Zhang
Summary: This paper summarizes recent developments in using various techniques to introduce, characterize, and regulate defects in defect engineering. The important role of defects in high-performance defect engineered photoelectrodes for PEC water splitting application is highlighted. Current challenges and future perspectives in the field of defect engineering of nanostructures for photoelectrodes are also discussed.
Article
Engineering, Electrical & Electronic
Feng-Xian Jiang, Gui-Zhi Zhang, Li-Fei Ji, Ling-Mei Zhao, Xiao-Hong Xu
Summary: ZnO films co-doped with Cr and N were successfully fabricated and characterized in terms of their structure and optical properties. It was found that the electrical and optical characteristics of the films can be tuned by doping with Cr and N, but excessive Cr doping degrades the crystal quality of the films.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Shrinath Dattatray Ghadge, Moni K. Datta, Oleg Velikokhatnyi, Prashant N. Kumta
Summary: This study presents a simple and effective Mo doping approach for generating high-performance photoanodes for PEC water splitting. Mo doping can enhance light absorption ability, reduce band gap, increase carrier density and photocurrent density, while also decreasing charge transfer resistance and improving PEC stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Dipanjan Maity, Keshab Karmakar, Debashish Pal, Soham Saha, Gobinda Gopal Khan, Kalyan Mandal
Summary: This work presents a one-dimensional n-ZnO/p-ZnCo2O4 nanoheterojunction photoanode with enhanced PEC water splitting activity and solar light-harvesting performance. The p-ZnCo2O4 acts as both a catalyst for improving charge separation efficiency and an OER catalyst.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Burcu Oral, Elif Can, Ramazan Yildirim
Summary: In this study, machine learning techniques were used to analyze an extensive dataset on photoelectrochemical water splitting over n-type semiconductors. The results showed that association rule mining, decision tree, and random forest could identify patterns and establish relations between photocurrent density and various descriptors.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Young-Hee Joo, Mi-Jin Jin, Sung Kyun Kim, Doo-Seung Um, Chang-Il Kim
Summary: In this study, the etching mechanism of Al-doped ZnO thin films in a BCl3/Ar-based plasma system was investigated. It was found that the etch rate was highest at a BCl3/Ar ratio of 25:75, and the surface properties of the thin films improved after etching. These findings may have potential applications in the development of high-performance optical and electronic devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yuling Wei, Leshuang Wang, Changlong Chen
Summary: Yttrium doped ZnO nanorod array films grown hydrothermally on fluorine doped tin oxide substrates exhibit enhanced photoelectrochemical water splitting performance, attributed to improved light absorption, increased conductivity, and prolonged carrier lifetime caused by yttrium doping. The yttrium doped samples show higher photocurrent density under illumination compared to undoped samples, making them promising platforms for various photocatalytic applications beyond photoelectrochemical water splitting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
S. Aydin
Summary: In this study, the effects of Ho-doping rate on the electronic and optical properties of ZnO films were analyzed using First Principles calculations. The band structure, optical properties, and density of states of different Ho-doped ZnO samples were calculated and compared. The results showed that the band gap first decreased and then increased with increasing Ho content, and the optical properties of Ho-doped ZnO exhibited blue shift and red shifts in various characterizations. The calculations confirmed that Ho-doping could heal ZnO and were consistent with experimental results.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Angel Regalado-Contreras, M. H. Farias, W. De La Cruz
Summary: Low temperature processing and long-term electrical stability were achieved in p-type ZnO thin films by reactive pulsed laser deposition. The films exhibited stable electrical properties and emissions, even after nine months of deposition. This research provides suitable p-type ZnO:N films for flexible electronics fabrication.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zijun Ma, Yanping Wei, Jijun Ding, Peirong Chang, Jinxiu Guo, Zhen Peng
Summary: Either metal/metal or metal/non-metal co-doping is an effective method to modulate the visible emission of ZnO. In this study, ZnO films doped with aluminum, silver, and nitrogen were deposited, and their photoluminescence characteristics were investigated. The enhancement mechanism of visible light emission was discussed based on experimental and theoretical results.
Article
Physics, Applied
A. Moskova, M. Mosko, M. Precner, M. Mikolasek, A. Rosova, M. Micusik, V Strbik, J. Soltys, F. Gucmann, E. Dobrocka, K. Frohlich
Summary: Transparent conducting Al-doped ZnO films were grown using atomic layer deposition (ALD). The density of Al donors and electron traps at the grain surface were investigated to explain the low doping efficiency. It was proposed that Al2O3 molecules provide single-electron Al donors accompanied by Zn vacancies, leading to imperfect compensation and weakly efficient doping.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Mohamed Zayed, Nourhan Nasser, Mohamed Shaban, Hind Alshaikh, Hany Hamdy, Ashour M. Ahmed
Summary: Various ZnO nanostructures (NRs, NDs, NRs/NDs, and ZnO NRs decorated with gold nanoparticles) were synthesized to improve photoelectrochemical (PEC) water splitting. By optimizing the deposition time and gold sputtering time, the PEC performance of the ZnO nanostructures was enhanced, with the highest photocurrent density achieved for the 2 h ZnO NRs.
Article
Physics, Multidisciplinary
E. M. Bayan, V. V. Petrov, I. O. Ignatieva, M. G. Volkova, A. P. Ivanishcheva, A. Chernyshev
Summary: Nanocrystalline Al-ZnO films were synthesized using the thermal decomposition method, with a two-stage process involving synthesis from organic salts and film production. The impact of calcination temperature on crystallite size, phase composition, and optical properties of the films was investigated. XRD showed the formation of a hexagonal wurtzite crystal structure with a distorted lattice due to the introduction of Al3+ ions. Crystallite size increased from 18 to 28 nm with increasing calcination temperature. Optical transmission spectra revealed that higher calcination temperature resulted in a decreased ZnO band gap. The proposed method allows for the production of optically transparent Al-ZnO films consisting of nanocrystallites, with adjustable optical properties through varying the calcination temperature.
Article
Chemistry, Physical
Yingying Chen, Ashlee Vise, W. Ellis Klein, Firat C. Cetinbas, Deborah J. Myers, Wilson A. Smith, Todd G. Deutsch, K. C. Neyerlin
ACS ENERGY LETTERS
(2020)
Article
Chemistry, Physical
Micha Ben-Naim, Reuben J. Britto, Chase W. Aldridge, Rachel Mow, Myles A. Steiner, Adam C. Nielander, Laurie A. King, Daniel J. Friedman, Todd G. Deutsch, James L. Young, Thomas F. Jaramillo
ACS ENERGY LETTERS
(2020)
Article
Nanoscience & Nanotechnology
Micha Ben-Naim, Chase W. Aldridge, Myles A. Steiner, Reuben J. Britto, Adam C. Nielander, Laurie A. King, Todd G. Deutsch, James L. Young, Thomas F. Jaramillo
Summary: This study provides a systematic investigation into the durability of GaInP2 systems and finds that the photocathode with both a capping layer and window layer demonstrates the highest PEC performance and longest lifetime.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Weilai Yu, James L. Young, Todd G. Deutsch, Nathan S. Lewis
Summary: The study evaluated the long-term stability of p-Ga0.52In0.48P photocathodes in acidic or alkaline electrolytes, finding that electrodeposition of Pt facilitated the hydrogen-evolution reaction kinetics and stabilized the photoelectrodes. This work provides insights into the stability and corrosion mechanisms of p-GaInP photocathodes, showing their potential as top light absorbers for solar-fuel generators.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Physics, Applied
Gideon Segev, Jakob Kibsgaard, Christopher Hahn, Zhichuan J. Xu, Wen-Hui (Sophia) Cheng, Todd G. Deutsch, Chengxiang Xiang, Jenny Z. Zhang, Leif Hammarstrom, Daniel G. Nocera, Adam Z. Weber, Peter Agbo, Takashi Hisatomi, Frank E. Osterloh, Kazunari Domen, Fatwa F. Abdi, Sophia Haussener, Daniel J. Miller, Shane Ardo, Paul C. McIntyre, Thomas Hannappel, Shu Hu, Harry Atwater, John M. Gregoire, Mehmed Z. Ertem, Ian D. Sharp, Kyoung-Shin Choi, Jae Sung Lee, Osamu Ishitani, Joel W. Ager, Rajiv Ramanujam Prabhakar, Alexis T. Bell, Shannon W. Boettcher, Kylie Vincent, Kazuhiro Takanabe, Vincent Artero, Ryan Napier, Beatriz Roldan Cuenya, Marc T. M. Koper, Roel Van de Krol, Frances Houle
Summary: The performance of solar fuel generation devices has made progress, but still faces many scientific and engineering challenges. There is a need to significantly improve conversion efficiency, stability, and product selectivity at the electrode and device level. Additionally, maintaining these performance metrics while scaling up devices and systems and controlling costs and carbon footprint is crucial. This roadmap surveys various aspects of solar fuel generation, highlighting the current state of the art, key challenges, and advancements required to meet them. It can serve as a guide for researchers and funding agencies in addressing the most pressing needs of the field.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Weilai Yu, Pakpoom Buabthong, James L. Young, Zachary P. Ifkovits, Sean T. Byrne, Myles A. Steiner, Todd G. Deutsch, Nathan S. Lewis
Summary: The long-term stability of homojunction pn(+)-Ga0.52In0.48P photocathodes with an electrodeposited Pt catalyst was systematically evaluated in both acidic and alkaline electrolytes. The degradation mechanisms were attributed to thinning of the n(+)-emitter layer, corrosion of the GaAs substrate, and direct GaAs/electrolyte contact. The study emphasizes the importance of substrate stability and structural integrity for stable solar fuel generation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Mahak Dhiman, Yingying Chen, Yifei Li, Anders B. Laursen, Karin U. D. Calvinho, Todd G. G. Deutsch, G. Charles Dismukes
Summary: In this study, we have achieved highly efficient conversion of CO2 using a gas diffusion electrode (GDE) and a high surface area nickel phosphide electrocatalyst. The configuration demonstrated a selectivity of 40-50% for total carbon products over H-2 formation (HER). The use of soft-templating method and hydrophobic polymers as co-catalyst binders improved the CO2 conversion efficiency.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Zhaoning Song, Chongwen Li, Lei Chen, Kshitiz Dolia, Sheng Fu, Nannan Sun, You Li, Keenan Wyatt, James L. Young, Todd G. Deutsch, Yanfa Yan
Summary: Unassisted solar water splitting by multijunction tandem photoelectrodes is achieved with the fabrication of monolithically integrated all-perovskite tandem photocathodes, delivering a high photovoltage of over 2 V and a photocurrentdensity of 12.5 mA cm(-2) at zero applied bias under simulated 1 sun illumination. The tandem photoelectrode demonstrates continuous operation in water for more than 120 h with less than 5% efficiency loss. Techno-economic analysis predicts a low levelized cost of hydrogen of less than $1/kg for all-perovskite tandem photoelectrodes, if device longevity is realized.
ACS ENERGY LETTERS
(2023)
Editorial Material
Energy & Fuels
Todd G. Deutsch
Correction
Chemistry, Multidisciplinary
Yihuang Xiong, Quinn T. Campbell, Julian Fanghanel, Catherine K. Badding, Huaiyu Wang, Nicole E. Kirchner-Hall, Monica J. Theibault, Iurii Timrov, Jared S. Mondschein, Kriti Seth, Rebecca Katz, Andres Molina Villarino, Betul Pamuk, Megan E. Penrod, Mohammed M. Khan, Tiffany Rivera, Nathan C. Smith, Xavier Quintana, Paul Orbe, Craig J. Fennie, Senorpe Asem-Hiablie, James L. Young, Todd G. Deutsch, Matteo Cococcioni, Venkatraman Gopalan, Hector D. Abruna, Raymond E. Schaak, Ismaila Dabo
Summary: This article provides a correction to a paper on optimizing accuracy and efficacy in data-driven materials discovery for the solar production of hydrogen, and includes the correct citation information.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yihuang Xiong, Quinn T. Campbell, Julian Fanghanel, Catherine K. Badding, Huaiyu Wang, Nicole E. Kirchner-Hall, Monica J. Theibault, Iurii Timrov, Jared S. Mondschein, Kriti Seth, Rebecca Katz, Andres Molina Villarino, Betul Pamuk, Megan E. Penrod, Mohammed M. Khan, Tiffany Rivera, Nathan C. Smith, Xavier Quintana, Paul Orbe, Craig J. Fennie, Senorpe Asem-Hiablie, James L. Young, Todd G. Deutsch, Matteo Cococcioni, Venkatraman Gopalan, Hector D. Abruna, Raymond E. Schaak, Ismaila Dabo
Summary: The production of hydrogen fuels through water splitting is important for meeting global energy needs and reducing the environmental impact of fossil-fuel transportation. Discovering, synthesizing, and validating stable and inexpensive photocatalysts is crucial for the success of this approach.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Yingying Chen, Jacob A. Wrubel, W. Ellis Klein, Sadia Kabir, Wilson A. Smith, K. C. Neyerlin, Todd G. Deutsch
ACS APPLIED POLYMER MATERIALS
(2020)
Article
Chemistry, Physical
Tobias A. Kistler, Guosong Zeng, James L. Young, Lien-Chun Weng, Chase Aldridge, Keenan Wyatt, Myles A. Steiner, Oscar Solorzano, Frances A. Houle, Francesca M. Toma, Adam Z. Weber, Todd G. Deutsch, Nemanja Danilovic
ADVANCED ENERGY MATERIALS
(2020)
Article
Electrochemistry
Jacob A. Wrubel, Yingying Chen, Zhiwen Ma, Todd G. Deutsch
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Shinjae Hwang, James L. Young, Rachel Mow, Anders B. Laursen, Mengjun Li, Hongbin Yang, Philip E. Batson, Martha Greenblatt, Myles A. Steiner, Daniel Friedman, Todd G. Deutsch, Eric Garfunkel, G. Charles Dismukes
SUSTAINABLE ENERGY & FUELS
(2020)
