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Earlier sources: Solar
This energy thread follows solar through original research, public projects, and source reports. Read the evidence below to see which developments are represented in SYMTRI’s archive.
SYMTRI organizes observations from public sources into a living map. Connections reflect shared subject matter; they do not establish causation or endorse a source.
Open in the map ↗89 classified signals in the fourteen-day window. These counts include signals awaiting readable evidence.
Earlier sources
Up to ten sources with readable evidence, ordered by their feed timestamp. These archive sources can be older than the live fourteen-day window. This list is a sample, not a measure of total activity. Dates distinguish paper publication, repository creation, model/dataset activity, Hacker News posts, and KEV catalog additions. “First archived” records when SYMTRI first stored the signal.
- OpenAlex · Published · First archived
Stretchable Efficient Organic Solar Cells via Semiconductor Plasticizing Strategy ↗
ABSTRACT Organic solar cells play a crucial role in wearable optoelectronic devices, but achieving both high efficiency and mechanical stretchability simultaneously remains challenging. Recently Shao's group reported a small molecule acceptor (BTP‐Si4) with both mechanical toughness and electrical properties, and the synergistic enhancement of power conversion efficiency (PCE >16%) and mechanical properties ( ε > 95%) was achieved for the first time through the optimized blending with the polymer donor PNTB6‐Cl. The universal law of molecular structure–compatibility–mechanical properties is sy…
- OpenAlex · Published · First archived
A physics-informed method for joint forecasting of heat load and battery surface temperature in heating stations integrating photovoltaic generation, battery energy storage, and heat pumps ↗
Accurate joint forecasting of heat load and battery surface temperature is critical for reliable operation of heating stations that integrate photovoltaic generation, battery energy storage, and heat pumps in mountainous townships. These two targets are dynamically coupled because heat demand affects heat pump operation, while heat pump power consumption influences battery charging/discharging behavior and heat generation. However, existing methods either predict them independently or rely on data-driven multi-task learning, which ignores cross-system coupling and thermodynamic consistency. To…
- OpenAlex · Published · First archived
Experimentally informed drift-diffusion assessment of a lead-free four-terminal BaZr0.85Ti0.15S3/CZTSSe tandem solar cell ↗
A lead-free four-terminal tandem architecture is assessed by optically coupling a semi-transparent BaZr 0.85 Ti 0.15 S 3 chalcogenide-perovskite top sub-cell to a Cu 2 ZnSn(S 0.25 Se 0.75 ) 4 (CZTSSe) bottom sub-cell. The assessment includes a 33.93% idealized design target only as an upper bound because the assumed p-type, low-defect top absorber has not been demonstrated in a photovoltaic device. The device physics are evaluated with a one-dimensional drift-diffusion framework based on the coupled Poisson and electron/hole continuity equations. A finite-volume Python implementation using Sch…
- OpenAlex · Published · First archived
A scenario-based evaluation framework for renewable capacity scale and photovoltaic capacity ratio in a hydro–wind–photovoltaic–pumped-storage hybrid energy system ↗
Renewable-capacity planning in hydro–wind–photovoltaic–pumped-storage hybrid energy systems is jointly affected by wind–photovoltaic output, inflow, renewable capacity, and photovoltaic capacity ratio, yet their coupled effects on operation and capacity preference remain unclear. This study develops a scenario-based resource–operation–capacity evaluation framework for a cascade hydropower–wind–photovoltaic–pumped-storage system. Five cumulative-probability levels of wind–photovoltaic joint output and five hydrological exceedance-frequency levels form 25 combined scenarios. Normalized historica…
- OpenAlex · Published · First archived
First-Principles Modeling of Charge Transfer Excitons in Organic Solar Cells ↗
Abstract Charge-transfer (CT) excitons formed at donor–acceptor interfaces play a central role in charge separation in organic solar cells. Their binding energy and spatial structure are highly sensitive to local molecular geometry, particularly in disordered morphologies. In this work, we present a multiscale computational framework to model CT excitons at the interface between poly(3-hexylthiophene) (P3HT) and the nonfullerene acceptor O-IDTBR, a representative polymer-nonfullerene blend. We extend a previously developed tight-binding model to include kinetic energy, Coulomb interaction and…
- OpenAlex · Published · First archived
Optimization and feasibility of hybrid photovoltaic-thermal and wind turbine along with forced convection phase change material-embedded Trombe wall using control algorithm for targeting Net Zero Energy Buildings ↗
The objective of this study is to economically optimize a grid-connected hybrid renewable energy system, comprising a wind turbine (WT) and photovoltaic–thermal (PV/T), that allows the forced convection phase change material (PCM)-embedded Trombe wall building (PCMTWB) which is conditioned by ground source heat pump (GSHP) to target net zero energy building (ZEB) status. Since the Trombe wall is modeled as forced convection, a control algorithm is used to prevent its negative effects. Classical Trombe wall building (CTWB) and PCMTWB against the standard building (SB) across the four distinct c…
- OpenAlex · Published · First archived
Comparative assessment of single-diode model parameter extraction and physical validity for high-efficiency photovoltaic modules ↗
The single-diode model (SDM) is widely used for representing the I – V characteristics of photovoltaic modules. Previous studies have shown that different parameter sets, even non-physical ones, can reproduce the measured curve with low error values. However, physically reasonable parameter sets remain preferable, and few studies have combined grid-based parameter exploration, physical-validity screening, and direct comparison of extraction-formulation-dependent irradiance trends for recent high-efficiency commercial modules. This work investigates commercial high-efficiency PERC and TOPCon mo…
- OpenAlex · Published · First archived
Physics-Informed Photovoltaic Fault Diagnosis Using Hard-Clamped Feature Engineering and Progressive Fine-Tuning ↗
Limited labeled fault data and discrepancies between simulated and measured signals complicate photovoltaic (PV) fault diagnosis. This study develops a transfer learning framework that combines hard-clamped electrical features with progressive fine-tuning. Four measured channels are expanded into a ten-dimensional (10D) representation containing power, an equivalent-resistance indicator, and consecutive-sample differences. A multi-scale convolutional neural network (MSCNN), bidirectional long short-term memory (BiLSTM), and self-attention form the sequence classifier. The model is pretrained o…
- OpenAlex · Published · First archived
Dual functional ligand for efficient and thermally stable perovskite absorber in hot carrier solar cells ↗
The practical implementation of hot-carrier solar cells requires absorber materials capable of simultaneously suppressing carrier thermalization and maintaining thermal stability under realistic operating conditions. However, the temperature dependence of thermalization losses in perovskite quantum dots remains largely unexplored. Here, isonicotinamide (IA) was employed as a dual-functional ligand to simultaneously passivate surface defects and enhance the thermal robustness of wide-bandgap CsPbI x Br 3-x quantum dots. By combining temperature- and power-dependent photoluminescence spectroscop…
- OpenAlex · Published · First archived
Numerical and machine learning analysis of Rb2AgInBr6 lead-free double perovskite solar cells ↗
Abstract To address the environmental concerns and stability limitations associated with conventional lead-based perovskite photovoltaics, this study proposes a lead-free double perovskite solar cell based on an optimized $$\hbox {ITO}$$ / $$\hbox {C}_{60}$$ / $$\hbox {Rb}_{2} \hbox {AgInBr}_{6}$$ / $$\hbox {Cu}_{2}\hbox {NiSnS}_{4}$$ / $$\hbox {Pt}$$ heterostructure. A hybrid computational framework combining SCAPS-1D numerical simulation under AM1.5G illumination with machine-learning (ML) analysis was developed to systematically investigate the influence of key device parameters, including…
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How to assess evidence about Solar
Check each original source for its methods, release status, limitations, and supporting data. A repository announcement, a preprint, and a published study provide different kinds of evidence. SYMTRI’s subject classification helps discovery; it does not independently validate the source’s claims.
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