-
Discovery of the Zintl-phosphide BaCd2P2 as a long carrier lifetime and stable solar absorber Joule (IF 39.8) Pub Date : 2024-03-11 Zhenkun Yuan, Diana Dahliah, Muhammad Rubaiat Hasan, Gideon Kassa, Andrew Pike, Shaham Quadir, Romain Claes, Cierra Chandler, Yihuang Xiong, Victoria Kyveryga, Philip Yox, Gian-Marco Rignanese, Ismaila Dabo, Andriy Zakutayev, David P. Fenning, Obadiah G. Reid, Sage Bauers, Jifeng Liu, Kirill Kovnir, Geoffroy Hautier
Thin-film photovoltaics (PV) offers a path to decarbonize global energy production. Unfortunately, existing thin-film solar absorbers have major issues associated with either elemental abundance, stability, or performance. Entirely new and disruptive materials platforms are rarely discovered, and their search is traditionally slow and serendipitous. Here, we report a first-principles high-throughput
-
The resource demands of multi-terawatt-scale perovskite tandem photovoltaics Joule (IF 39.8) Pub Date : 2024-02-27 Lukas Wagner, Jiajia Suo, Bowen Yang, Dmitry Bogachuk, Estelle Gervais, Robert Pietzcker, Andrea Gassmann, Jan Christoph Goldschmidt
Photovoltaics (PV) and wind are the most important energy-conversion technologies for cost-efficient climate change mitigation. To reach international climate goals, the annual PV module production must be expanded to multi-terawatt (TW) scale. Economic and resource restraints demand the implementation of cost-efficient multi-junction technologies, for which perovskite-based tandem technologies are
-
Silicon heterojunction solar cells achieving 26.6% efficiency on commercial-size p-type silicon wafer Joule (IF 39.8) Pub Date : 2024-02-26 Xiaoning Ru, Miao Yang, Shi Yin, Yichun Wang, Chengjian Hong, Fuguo Peng, Yunlai Yuan, Chang Sun, Chaowei Xue, Minghao Qu, Jianbo Wang, Junxiong Lu, Liang Fang, Hao Deng, Tian Xie, Shengzhong (Frank) Liu, Zhenguo Li, Xixiang Xu
Heterojunction formed at the amorphous/crystalline silicon (a-Si:H/c-Si) interface exhibits distinctive electronic characteristics for application in silicon heterojunction (SHJ) solar cells. The incorporation of an ultrathin intrinsic a-Si:H passivation layer enables very high open-circuit voltage () of 750 mV. Furthermore, the n- or p-type doped a-Si:H contact layers can undergo crystallization into
-
A roadmap for tandem photovoltaics Joule (IF 39.8) Pub Date : 2024-02-21 Kirstin Alberi, Joseph J. Berry, Jacob J. Cordell, Daniel J. Friedman, John F. Geisz, Ahmad R. Kirmani, Bryon W. Larson, William E. McMahon, Lorelle M. Mansfield, Paul F. Ndione, Michael Owen-Bellini, Axel F. Palmstrom, Matthew O. Reese, Samantha B. Reese, Myles A. Steiner, Adele C. Tamboli, San Theingi, Emily L. Warren
-
Unlocking solar-driven synergistic clean water harvesting and sustainable fuel production Joule (IF 39.8) Pub Date : 2024-02-21 Shuai Guo, Swee Ching Tan
-
Anion-exchange membrane fuel cells with ionomerless cathodes Joule (IF 39.8) Pub Date : 2024-02-21 Tao Yang, Zhixiang Chen, Yongchao Yang, Shenlong Zhao
-
Nanoscale science for terawatt/gigaton scale performance of clean energy technologies Joule (IF 39.8) Pub Date : 2024-02-21 Dirk C. Jordan, Steven C. Hayden, Nancy M. Haegel, Paul Veers, Shaun Alia, Teresa Barnes, Ashley Gaulding, Katherine L. Jungjohann
-
Photovoltaic-sorbent system for water and electricity generation Joule (IF 39.8) Pub Date : 2024-02-21 Zhao Shao, Primož Poredoš, Ruzhu Wang
-
Technoeconomic analysis of small modular reactors decarbonizing industrial process heat Joule (IF 39.8) Pub Date : 2024-02-21 Max Vanatta, Deep Patel, Todd Allen, Daniel Cooper, Michael T. Craig
-
Three-dimensional multi-layer carbon tube electrodes for AC line-filtering capacitors Joule (IF 39.8) Pub Date : 2024-02-15 Gan Chen, Fangming Han, Dou Lin, Shiping Zhang, Qijun Pan, Cheng Shao, Zhaoming Wang, Xiaoguang Zhu, Guowen Meng, Bingqing Wei
-
Cradle-to-cradle recycling in terawatt photovoltaics: A vision of perpetual utility Joule (IF 39.8) Pub Date : 2024-02-14 Ian Marius Peters, Jens Hauch, Christoph Brabec
-
Nonaqueous electrolytes for reversible zinc electrodeposition for dynamic windows with excellent optical contrast and durability Joule (IF 39.8) Pub Date : 2024-02-13 Nikhil C. Bhoumik, Desmond C. Madu, Cheon Woo Moon, Lorenzo S. Arvisu, Michael D. McGehee, Christopher J. Barile
-
Enhanced passivation durability in perovskite solar cells via concentration-independent passivators Joule (IF 39.8) Pub Date : 2024-02-12 Sisi Wang, Canglang Yao, Lun Li, Tianyi Huang, Shaun Tan, Pengju Shi, Shiyin Jin, Chenhui Zhu, Yang Yang, Bowen Zhu, Jingjing Xue, Rui Wang
-
Heat pumps for all? Distributions of the costs and benefits of residential air-source heat pumps in the United States Joule (IF 39.8) Pub Date : 2024-02-12 Eric J.H. Wilson, Prateek Munankarmi, Brennan D. Less, Janet L. Reyna, Stacey Rothgeb
Electrification of fossil-fuel combustion in buildings is a key component of achieving global greenhouse gas emissions targets. We use physics simulations of 550,000 statistically representative households to analyze distributions of the costs and benefits of three air-to-air heat pump performance levels, with and without insulation upgrades, across the diversity of the US housing stock. We find positive
-
Revealing the potential of luminescent solar concentrators in real-world environments Joule (IF 39.8) Pub Date : 2024-02-09 Tomi K. Baikie, Benjamin Daiber, Emil Kensington, James Xiao, Neil C. Greenham, Bruno Ehrler, Akshay Rao
Luminescent solar concentrators (LSCs) are devices that concentrate light using a transparent matrix doped with chromophores. LSCs have the potential to outperform other concentration technologies due to their ability to concentrate diffuse light and reshape the solar spectrum to match the optimum spectral characteristics for photovoltaics. This study compares different LSC technologies, including
-
Utilizing electrostatic dynamic bonds in zwitterion elastomer for self-curing of flexible perovskite solar cells Joule (IF 39.8) Pub Date : 2024-02-08 Yaohua Wang, Yuanyuan Meng, Chang Liu, Ruikun Cao, Bin Han, Lisha Xie, Ruijia Tian, Xiaoyi Lu, Zhenhua Song, Jun Li, Shuncheng Yang, Congda Lu, Ziyi Ge
-
Design of efficient, reliable, and wide-band filter electrochemical capacitors via matching positive with negative electrodes Joule (IF 39.8) Pub Date : 2024-02-06 Chenxiang Wang, Samantha Vi-Tang, Sheng Qu, Zirong He, Bosi Peng, Xueying Chang, Zhiyin Yang, Cheng-Wei Lin, Yuto Katsuyama, Sophia Uemura, Maher F. El-Kady, Richard B. Kaner
-
Managed spatial strain uniformity for efficient perovskite photovoltaics enables minimized energy deficit Joule (IF 39.8) Pub Date : 2024-02-06 Qiu Xiong, Xiaofeng Huang, Can Wang, Qin Zhou, Yong Gang, Tinghao Li, Chongzhu Hu, Ni Zhang, Xiaobing Wang, Jihuai Wu, Zhenhuang Su, Xingyu Gao, Xin Li, Nanfeng Zheng, Peng Gao
-
Electrochemical chlor-iron process for iron production from iron oxide and salt water Joule (IF 39.8) Pub Date : 2024-02-05 Berkley B. Noble, Anastasiia Konovalova, Louka J. Moutarlier, Valerie Brogden, Paul A. Kempler
The iron and steel industry accounts for ∼8% of global greenhouse gas emissions. Electrochemical reduction of iron ore to metal for electric arc furnaces can enable sustainable steel production, but existing electrochemical processes require expensive capital or electrolytes. We report a low-temperature, electrochemical cell that consumes low-cost and abundant iron oxide and aqueous sodium chloride
-
Organic and hybrid thermoelectrics are maturing, but not yet a market Joule (IF 39.8) Pub Date : 2024-02-05 Jeffrey J. Urban
Download : Download high-res image (179KB) Download : Download full-size image Jeffrey J. Urban is a Facility Director of Inorganic Nanostructures at the Molecular Foundry and Senior Scientist in the Molecular Foundry Division at Lawrence Berkeley National Laboratory. He earned his PhD at Harvard studying scaling laws in phase transitions in correlated electron materials and completed postdoctoral
-
A rechargeable, non-aqueous manganese metal battery enabled by electrolyte regulation Joule (IF 39.8) Pub Date : 2024-01-31 Dongyang Shen, Xinhua Zheng, Ruihao Luo, Taoli Jiang, Mingming Wang, Mingying Zhang, Qia Peng, Li Song, Shiming Zhou, Zhiguo Hou, Yitai Qian, Wei Chen
-
Smart batteries for powering the future Joule (IF 39.8) Pub Date : 2024-02-01 Qianqian Meng, Yongxin Huang, Li Li, Feng Wu, Renjie Chen
-
Do all good things really come in threes? The true potential of 3-terminal perovskite-silicon tandem solar cell strings Joule (IF 39.8) Pub Date : 2024-01-31 Miha Kikelj, Laurie-Lou Senaud, Jonas Geissbühler, Florent Sahli, Damien Lachenal, Derk Baetzner, Benjamin Lipovšek, Marko Topič, Christophe Ballif, Quentin Jeangros, Bertrand Paviet-Salomon
-
Assessing the potential of decarbonization options for industrial sectors Joule (IF 39.8) Pub Date : 2024-01-31 Ahmed Gailani, Sam Cooper, Stephen Allen, Andrew Pimm, Peter Taylor, Robert Gross
Industry emits around a quarter of global greenhouse gas (GHG) emissions. This paper presents the first comprehensive review to identify the main decarbonization options for this sector and their abatement potentials. First, we identify the important GHG emitting processes and establish a global average baseline for their current emissions intensity and energy use. We then quantify the energy and emissions
-
Accelerating the net-zero economy with CO2-hydrogenated formic acid production: Process development and pilot plant demonstration Joule (IF 39.8) Pub Date : 2024-01-30 Changsoo Kim, Kwangho Park, Hyeonggeon Lee, Jaehyung Im, Denis Usosky, Kyungjae Tak, Damdae Park, Wonsuk Chung, Donggu Han, Jieun Yoon, Heewon Lee, Hyunyoung Kim, , Juyeong Jung, Da Hye Won, Chun-Jae Yoo, Ki Bong Lee, Kwang-Deog Jung, Ung Lee
-
19.7% efficiency binary organic solar cells achieved by selective core fluorination of nonfullerene electron acceptors Joule (IF 39.8) Pub Date : 2024-01-30 Kerui Liu, Yuanyuan Jiang, Guangliu Ran, Feng Liu, Wenkai Zhang, Xiaozhang Zhu
-
A 110 Wh kg−1 Ah-level anode-free sodium battery at −40°C Joule (IF 39.8) Pub Date : 2024-01-29 Qiaonan Zhu, Dandan Yu, Jiangchun Chen, Liwei Cheng, Mengyao Tang, Yingyu Wang, Yuting Li, Jie Yang, Hua Wang
-
Open circuit potential decay transients quantify interfacial pH swings during high current density hydrogen electrocatalysis Joule (IF 39.8) Pub Date : 2024-01-29 Ethan R. Sauvé, Bryan Y. Tang, Neil K. Razdan, Wei Lun Toh, Sophia Weng, Yogesh Surendranath
-
Mass-efficient catalyst layer of hierarchical sub-nanosheets on nanowire for practical proton exchange membrane electrolyzer Joule (IF 39.8) Pub Date : 2024-01-25 Lu Tao, Fan Lv, Dawei Wang, Heng Luo, Fangxu Lin, Hongyu Gong, Hongtian Mi, Shuguang Wang, Qinghua Zhang, Lin Gu, Mingchuan Luo, Shaojun Guo
-
Plastic inorganic thermoelectric materials Joule (IF 39.8) Pub Date : 2024-01-23 Pengfei Qiu, Tingting Deng, Lidong Chen, Xun Shi
-
Practical high-energy aqueous zinc-bromine static batteries enabled by synergistic exclusion-complexation chemistry Joule (IF 39.8) Pub Date : 2024-01-23 Chen Xu, Chengjun Lei, Pengjie Jiang, Wei Yang, Wenjiao Ma, Xin He, Xiao Liang
-
Photocatalytic biomass conversion for hydrogen and renewable carbon-based chemicals Joule (IF 39.8) Pub Date : 2024-01-22 Min Wang, Hongru Zhou, Feng Wang
Biomass is a renewable hydrogen and carbon source, and it is of interest to use as a sustainable resource. Solar-driven photocatalysis has been recognized as a potentially feasible technology for the extraction of hydrogen from biomass to produce molecular hydrogen. Traditionally the carbon content in biomass has been degraded to carbon dioxide, but increasing efforts aim to produce value-added carbon
-
Salinity gradient energy is not a competitive source of renewable energy Joule (IF 39.8) Pub Date : 2024-01-22 Shihong Lin, Zhangxin Wang, Li Wang, Menachem Elimelech
In this perspective, we critically assess the competitiveness of salinity gradient energy (SGE) as a renewable energy source. While scientifically intriguing and gaining research attention, SGE encounters formidable challenges in competing with established renewable technologies, such as solar and wind energy. Even the most advanced SGE technology, pressure retarded osmosis, remains far from cost competitive
-
Soil organic carbon change can reduce the climate benefits of biofuel produced from forest residues Joule (IF 39.8) Pub Date : 2024-01-19 Kai Lan, Bingquan Zhang, Tessa Lee, Yuan Yao
-
Chemical bond engineering toward extraordinary power factor and service stability in thermoelectric copper selenide Joule (IF 39.8) Pub Date : 2024-01-19 Haihua Hu, Bin Su, Xiaodong Liu, Hao-Cheng Thong, Yilin Jiang, Hezhang Li, Jing-Wei Li, Hua-Lu Zhuang, Zhanran Han, Jincheng Yu, B. Layla Mehdi, Jing-Feng Li
-
Heterogeneous catalysis via light-heat dual activation: A path to the breakthrough in C1 chemistry Joule (IF 39.8) Pub Date : 2024-01-18 Bingqiao Xie, Di Hu, Priyank Kumar, Vitaly V. Ordomsky, Andrei Y. Khodakov, Rose Amal
-
High with low: Harnessing the power of demand-side solutions for high wellbeing with low energy and material demand Joule (IF 39.8) Pub Date : 2024-01-17 Masahiro Sugiyama, Charlie Wilson, Dominik Wiedenhofer, Benigna Boza-Kiss, Tao Cao, Joyee S. Chatterjee, Souran Chatterjee, Takuya Hara, Ayami Hayashi, Yiyi Ju, Volker Krey, María Fernanda Godoy León, Luis Martinez, Eric Masanet, Alessio Mastrucci, Jihoon Min, Leila Niamir, Setu Pelz, Joyashree Roy, Yamina Saheb, Caroline Zimm
The authors are all devoted energy system and sustainability transformation scholars, who collaborate regularly and actively at global and local levels to advance the knowledge space of demand-side solutions and policies. They are members of a growing bottom-up initiative, the Energy Demand Changes Induced by Technological and Social Innovations (EDITS) network (https://iiasa.ac.at/projects/edits)
-
A new insight into the mechanism of hydrogen spillover Joule (IF 39.8) Pub Date : 2024-01-17 Jie Yan, Junzhong Xie, Ding Ma
In a recent issue of Nature Catalysis, Chandler and colleagues demonstrate that hydrogen spillover on Au/TiO2 is entropy driven and pose that the only real requirement of spillover for the catalyst is to stabilize both protons and electrons. This study gives a new insight into the mechanism for hydrogen spillover.
-
Micelle-like bulk structure of localized high-concentration electrolytes Joule (IF 39.8) Pub Date : 2024-01-17 Ankit Verma, Maxwell C. Schulze, Andrew Colclasure
In the recent article by Efaw et al.1 published in Nature Materials, a unique micelle-like bulk structure of localized high-concentration electrolytes (LHCEs) is revealed to provide beneficial characteristics with respect to solid electrolyte interphase (SEI) stability on lithium metal anodes. This work adds to the pertinent discussions on design rules of LHCE, providing tangible guidelines for its
-
A temperature-dependent solvating electrolyte for wide-temperature and fast-charging lithium metal batteries Joule (IF 39.8) Pub Date : 2024-01-17 Mingming Fang, Xinyang Yue, Yongteng Dong, Yuanmao Chen, Zheng Liang
-
Fast-charge, long-duration storage in lithium batteries Joule (IF 39.8) Pub Date : 2024-01-16 Shuo Jin, Xiaosi Gao, Shifeng Hong, Yue Deng, Pengyu Chen, Rong Yang, Yong Lak Joo, Lynden A. Archer
-
A digital twin to overcome long-time challenges in photovoltaics Joule (IF 39.8) Pub Date : 2024-01-12 Larry Lüer, Ian Marius Peters, Ana Sunčana Smith, Eva Dorschky, Bjoern M. Eskofier, Frauke Liers, Jörg Franke, Martin Sjarov, Matthias Brossog, Dirk M. Guldi, Andreas Maier, Christoph J. Brabec
The recent successes of emerging photovoltaics (PVs) are largely driven by innovations in material science. However, closing the gap to commercialization still requires significant progress to match contradicting requirements, such as performance, longevity, and recyclability. In this perspective, we envision the layout of a digital twin for PV materials able to provide the necessary acceleration of
-
Achieving 19.4% organic solar cell via an in situ formation of p-i-n structure with built-in interpenetrating network Joule (IF 39.8) Pub Date : 2024-01-11 Ying Zhang, Wanyuan Deng, Christopher E. Petoukhoff, Xinxin Xia, Yongwen Lang, Hao Xia, Hua Tang, Hrisheekesh Thachoth Chandran, Sudhi Mahadevan, Kuan Liu, Patrick W.K. Fong, Yongmin Luo, Jiaying Wu, Sai-Wing Tsang, Frédéric Laquai, Hongbin Wu, Xinhui Lu, Yang Yang, Gang Li
-
System-level impacts of voluntary carbon-free electricity procurement strategies Joule (IF 39.8) Pub Date : 2024-01-11 Qingyu Xu, Wilson Ricks, Aneesha Manocha, Neha Patankar, Jesse D. Jenkins
-
Optical and electrical losses in semitransparent organic photovoltaics Joule (IF 39.8) Pub Date : 2024-01-09 Yuanhao Li, Jiayu Wang, Cenqi Yan, Shiming Zhang, Ningbo Cui, Yuqiang Liu, Gang Li, Pei Cheng
-
Shellac protects perovskite solar cell modules under real-world conditions Joule (IF 39.8) Pub Date : 2024-01-09 Guodong Zhang, Yifan Zheng, Haonan Wang, Guoyu Ding, Fan Yang, Yongchun Xu, Junsheng Yu, Yuchuan Shao
-
Pyroelectricity induced by Schottky interface above the Curie temperature of bulk materials Joule (IF 39.8) Pub Date : 2024-01-08 Hongyu Li, Chris R. Bowen, Huiyu Dan, Ya Yang
-
Efficient overall water splitting of a suspended photocatalyst boosted by metal-support interaction Joule (IF 39.8) Pub Date : 2024-01-02 Yu Qi, Boyang Zhang, Guanhua Zhang, Zhaoke Zheng, Tengfeng Xie, Shanshan Chen, Guijun Ma, Can Li, Kazunari Domen, Fuxiang Zhang
-
On the cost competitiveness of blue and green hydrogen Joule (IF 39.8) Pub Date : 2024-01-02 Falko Ueckerdt, Philipp C. Verpoort, Rahul Anantharaman, Christian Bauer, Fiona Beck, Thomas Longden, Simon Roussanaly
-
The importance of dynamic operation and renewable energy source on the economic feasibility of green ammonia Joule (IF 39.8) Pub Date : 2023-12-29 Collin Smith, Laura Torrente-Murciano
-
Fuel cell stack redesign and component integration radically increase power density Joule (IF 39.8) Pub Date : 2023-12-28 Chasen Tongsh, Siyuan Wu, Kui Jiao, Wenming Huo, Qing Du, Jae Wan Park, Jin Xuan, Huizhi Wang, Nigel P. Brandon, Michael D. Guiver
-
Monolithic perovskite/perovskite/silicon triple-junction solar cells with cation double displacement enabled 2.0 eV perovskites Joule (IF 39.8) Pub Date : 2023-12-28 Fuzong Xu, Erkan Aydin, Jiang Liu, Esma Ugur, George T. Harrison, Lujia Xu, Badri Vishal, Bumin K. Yildirim, Mingcong Wang, Roshan Ali, Anand S. Subbiah, Aren Yazmaciyan, Shynggys Zhumagali, Wenbo Yan, Yajun Gao, Zhaoning Song, Chongwen Li, Sheng Fu, Bin Chen, Atteq ur Rehman, Stefaan De Wolf
-
Enabling extreme fast charging Joule (IF 39.8) Pub Date : 2023-12-20 Tao Zhu, Andrew Cruden, Qiao Peng, Kailong Liu
The need to prevent lithium plating makes battery recharging a slow process. Three pathways are established to facilitate extreme fast charging (XFC): new electrodes and electrolytes, charging protocol optimization, and thermal management intervention. In a recent issue of Nature Communications, Zeng et al. pioneered a thermal management approach for XFC.
-
Enhancing the durability of CO electrolysis systems Joule (IF 39.8) Pub Date : 2023-12-20 Wanyu Deng, Feng Jiao
In Nature Catalysis, Seger and colleagues explored degradation in CO electrolysis using operando wide-angle X-ray scattering, pinpointing cathodic flooding and iridium contamination as key issues. Increasing polytetrafluoroethylene in the cathode and using an alkaline-stable nickel-based anode resulted in a stable performance of over 70% Faradaic efficiency for multi-carbon products.
-
Flatband λ-Ti3O5 boosts solar evaporation Joule (IF 39.8) Pub Date : 2023-12-20 Ning Xu, Yan Song, Tianqi Wei, Jia Zhu
Interfacial solar evaporation is regarded as a promising strategy for water purification, and materials with high evaporation performance have been continually explored. Recently in Nature, Yang et al. reported that flatband λ-Ti3O5-integrated hydrogel-based evaporators achieve an ultrahigh water evaporation rate of 6.09 kg m−2 h−1 under 1 sun irradiation.
-
Electrocapillary boosting electrode wetting for high-energy lithium-ion batteries Joule (IF 39.8) Pub Date : 2023-12-20 Hao Cui, Youzhi Song, Dongsheng Ren, Li Wang, Xiangming He
-
Living laboratories can and should play a greater role to unlock flexibility in United States commercial buildings Joule (IF 39.8) Pub Date : 2023-12-18 Jacques A. de Chalendar, Aditya Keskar, Jeremiah X. Johnson, Johanna L. Mathieu
Energy demand flexibility from commercial buildings can play a critical role in the ongoing energy transition. There is an urgent need to redirect more research and deployment efforts toward real-world experimentation. Buildings-sector roadmaps overwhelmingly rely on simulations that imperfectly capture reality. We draw lessons from a review of two decades of literature on real-world flexibility and
-
Advancing next-generation proton-exchange membrane fuel cell development in multi-physics transfer Joule (IF 39.8) Pub Date : 2023-12-15 Guobin Zhang, Zhiguo Qu, Wen-Quan Tao, Yutong Mu, Kui Jiao, Hui Xu, Yun Wang
-
Highly stabilized thermoelectric performance in natural minerals Joule (IF 39.8) Pub Date : 2023-12-14 Zhen-Hua Ge, Yi-Xin Zhang, Tian-Yu Yang, Dongsheng He, Yu Xiao, Hao Lai, Ying Wang, Jiushuai Deng, Jing-Feng Li, Jing Feng, Jiaqing He, Li-Dong Zhao
-
Reconstructing subsurface lattice for stable perovskite photovoltaics Joule (IF 39.8) Pub Date : 2023-12-14 Zhi-Wen Gao, Yong Wang, Xiwen Chen, Zhengyan Jiang, Minchao Qin, Weihua Ning, Bihua Hu, Xinhui Lu, Wan-Jian Yin, Deren Yang, Baomin Xu, Wallace C.H. Choy