> ## Documentation Index
> Fetch the complete documentation index at: https://docs.valyu.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Physics & Engineering

> Compare experimental papers while keeping device, method and test-condition differences explicit.

Engineering figures depend on device details and test conditions, and prior work is spread across papers, preprints and patents. This workflow compares selected papers without flattening those differences.

<div className="vx-wf-grid not-prose">
  <a className="vx-wf" href="/use-cases/sciences/literature-review"><span className="vx-label">Prior work</span><strong>Selected-paper comparison</strong><span className="vx-wf-desc">Compare selected experimental papers while keeping device, method and measurement distinctions.</span><span className="vx-wf-ex">Two perovskite-silicon tandem solar-cell papers</span></a>
</div>

## See a finished report

<Card title="Perovskite-silicon tandem efficiency records" icon="file-lines">
  A Heavy-mode technical brief tracing tandem solar-cell efficiency records from 2020, with a CSV of 37 records by device class. [Open the report](https://platform.valyu.ai/share/c121ae71-42f5-43be-b997-73b87553654e), [download the CSV](/examples/perovskite-silicon-tandem-records.csv) or [see the request](/examples/perovskite-silicon-tandem-records-request.json.txt).
</Card>

## Run a workflow

Each workflow page has a runnable request and notes on checking the output. Use [Search](/search/quickstart) when your application owns retrieval and analysis, or [DeepResearch](/guides/deepresearch-quickstart) for a cited report and files. Check [data sources](/data-sources) for the evidence your task needs.

See how engineering teams use Valyu on [valyu.ai](https://www.valyu.ai/physics).


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