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A roadmap for tandem photovoltaics

Hybrid tandem solar cells promise high efficiencies while drawing on the benefits of the established and emerging PV technologies they comprise. Before they can be widely deployed, many challenges associated with designing and manufacturing hybrid tandems must be addressed. This article presents an overview of those aspects as well as an assessment...

Wed Feb 21, 2024 18:23
Three-dimensional multi-layer carbon tube electrodes for AC line-filtering capacitors

High areal specific capacitance and fast frequency response electric double-layer capacitors are achieved based on a three-dimensional multi-layer carbon tube (3D-MLCT) framework, showing excellent AC line-filtering performance. The unique hollow tube-in-tube structure of the 3D-MLCT provides abundant ion adsorption surface and fast ion migration channels,...

Thu Feb 15, 2024 18:24
Cradle-to-cradle recycling in terawatt photovoltaics: A vision of perpetual utility

This study addresses the benefits of circular recycling for a rapidly expanding photovoltaic (PV) industry. Focusing on major materials like glass, aluminum, silver, and silicon, it explores their demand, supply chain challenges, and the necessity for cradle-to-cradle recycling. It offers an in-depth analysis of how circular recycling can mitigate material...

Wed Feb 14, 2024 18:16
Nonaqueous electrolytes for reversible zinc electrodeposition for dynamic windows with excellent optical contrast and durability

Dynamic windows with electronically switchable transmission can significantly increase the energy efficiency of buildings. We designed dynamic windows based on the reversible electrodeposition of zinc in nonaqueous electrolytes. The use of a metal allows the windows to switch rapidly from a clear state with a ∼75% visible light transmission to a black...

Tue Feb 13, 2024 18:13
Heat pumps for all? Distributions of the costs and benefits of residential air-source heat pumps in the United States

We evaluate distributions of costs and benefits of three air-to-air heat pumps across the diversity of the US housing stock. We find that although the economics of heat pumps are extremely varied, they reduce lifetime GHG emissions in every US state and are cost effective without subsidies in an estimated 65 million US homes. High-efficiency cold-climate...

Mon Feb 12, 2024 17:40
Enhanced passivation durability in perovskite solar cells via concentration-independent passivators

The main bottleneck in the commercialization of perovskite solar cells is the long-term stability of device operation. Sustainable passivation of defects from device operation is an important way to maintain performance over time. We heavily passivate the perovskite surface with a π-conjugated passivator, the passivation effectiveness of which is not...

Mon Feb 12, 2024 17:40

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