Results 141 to 150 of about 381,928 (350)

Overcoming Hole‐Extraction Barriers: A Facile PEDOT:PSS Interlayer Unlocks Record‐Low Voltage Deficit in PbS Quantum Dot Solar Cells

Advanced Science, EarlyView.
A synergistic methanol and oxalic acid interface engineering strategy is developed for PbS quantum dot solar cells. This approach transforms the PEDOT:PSS layer into a dense, electronically uniform, and conductive network. Consequently, the device achieves a record‐low voltage deficit of 340 mV, yielding a remarkable Voc of 742 mV and a power ...
Shengkai Kang, Zixuan Meng, Yabing Wang, Kanwen Zheng, Sibo Huang, Di Zhang, Shitong Li, Cong Chen, Shenqing Ren, Yang Li, Chao Ding, Dewei Zhao   +11 more
wiley   +1 more source

The maximum theoretical performance of unconcentrated solar photovoltaic and thermoelectric generator systems

, 2017
The maximum efficiency for photovoltaic (PV) and thermoelectric generator (TEG) systems without concentration is investigated. Both a combined system where the TEG is mounted directly on the back of the PV and a tandem system where the incoming sunlight ...
Bjørk, Rasmus, Nielsen, Kaspar K.
core   +1 more source

Polymer tandem solar cells

, 2007
The global demand for energy is expanding continually. Therefore, realization of green power sources are needed since combustion of fossil fuels will have serious consequences for the climate on the Earth. With a photovoltaic device, the solar light can be converted into electricity which is the most useful forms of energy. For this reason, solar cells
openaire   +1 more source

Aqueous Zinc‐Based Batteries: Active Materials, Device Design, and Future Perspectives

Advanced Energy Materials, EarlyView.
This review conducts a comprehensive analysis of aqueous zinc‐based batteries (AZBs) based on their intrinsic mechanisms, including redox reactions, ion intercalation reactions, alloying reactions, electrochemical double‐layer reactions, and mixed mechanisms, systematically discussing recent advancements in each type of AZBs.
Yan Ran, Fang Dong, Shuhui Sun, Yong Lei
wiley   +1 more source

Multi-site passivation agent for efficient tandem solar cells: Simultaneously suppressing defect recombination in NiOx surface, perovskite buried interface, and silicon edge

eScience
Wide-band gap perovskites combined with silicon (Si) in tandem solar cells offer a cost-effective path to industrialization. However, surface recombination at the buried interface of perovskite solar cells (PSCs) and the edge surface of Si solar cells ...
Xinru Wang, Mengqi Li, Lijie Yu, Bingbing Chen, Mengnan Cui, Haishun Gao, Xueliang Yang, Xuning Zhang, Jianhui Chen   +8 more
doaj   +1 more source

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives

Advanced Energy Materials, EarlyView.
Electrocatalytic CO2 reduction and CO2 batteries face challenges in achieving complete CO2 conversion with high conversion rates and Faradaic efficiency simultaneously. Existing systems compromise one for the other with incomplete CO2 conversion and inefficiencies, hindering practical applications. This perspective highlights state‐of‐the‐art progress,
Changfan Xu, Ping Hong, Yulian Dong, Marc Robert, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source

Raising the Efficiency Limit of the GaAs-based Intermediate Band Solar Cell Through the Implementation of a Mololithic Tandem with an AlGaAs top Cell. [PDF]

, 2010
The high efficiency limit of the intermediate band solar cell (IBSC) corresponds to the case of using as intermediate band (IB) host material a semiconductor with gap in the range of 2 eV.
Antolín Fernández, Elisa, García-Linares Fontes, Pablo, Hernández Martín, Estela, Luque López, Antonio, Martí Vega, Antonio, Ramiro Gonzalez, Iñigo   +5 more
core   +1 more source

Impact of Processing Environment on Anti‐Solvent Free FAPbI3 Films and Solar Cells

Advanced Energy Materials, EarlyView.
This work explores the dependence of 2‐step FAPbI3 films and solar cells on the atmosphere and humidity during each processing step. In‐situ and ex‐situ characterizations are used to correlate film composition, structure, morphology, and intermediate phase evolution with solar cell performance and lifetime.
Elizabeth M. Wall, Yu‐Kuan Lin, Moungi Bawendi, Quinn C. Burlingame, Yueh‐Lin Loo   +4 more
wiley   +1 more source

How Halide Segregation Governs the Ion Density Evolution and Ionic Performance Losses: From Degradation to Recovery

Advanced Energy Materials, EarlyView.
Halide segregation (HS) in mixed‐halide wide‐bandgap (WBG) perovskites is key to the stability of perovskite‐based tandem cells and a central focus of large‐scale research efforts. Here, we find that the underlying reason for the poor stability of cells prone to HS is enhanced ionic losses during operation. Furthermore, we identified irreversible ionic
Nikhil Kalasariya, Paria Forozi Sowmeeh, Francisco Pena‐Camargo, Francesco Vanin, Tino Lukas, Yuxin Dong, Qifan Feng, Ziwei Liu, Waqar Ali Memon, Danpeng Gao, Jianqiu Gong, Xin Wu, Andres Felipe Castro Mendez, Jan Hagenberg, Zahra Abadi, Thomas Hultzsch, Xinyi Zhao, Sahil Shah, Hui Yu, Varun Srivastava, Jianbin Xu, Ni Zhao, Felix Lang, Zonglong Zhu, Martin Stolterfoht   +24 more
wiley   +1 more source

Computational insights into wide bandgap lead free perovskite solar cells for silicon based tandem configurations

Scientific Reports
The quest for high-efficiency solar cells has led to significant research into lead-free perovskite materials, particularly tin-based perovskites. This study investigates the photovoltaic properties of various compositions of FASn(I1 − xBrx)3 perovskites
Sofia Tahir, Shammas Mushtaq, James McQueen, Javed Iqbal, Rasmiah S. Almufarij, Rania Saleh Alqurashi, Ruy Sebastian Bonilla, Arslan Ashfaq   +7 more
doaj   +1 more source