Build a High-Precision Quantum Dot Solar Cell Characterisation System with Arduino Mega

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Quantum dot solar cells hold the key to exceeding Shockley-Queisser limits, but characterising their nuanced performance demands instrumentation that goes beyond a multimeter. This kit puts a fully integrated sweep-and-spectrum analyser on your bench — built around the Arduino Mega — so you can capture device physics from your lab-fabricated QD cells with repeatable, research-grade data.

What You'll Build

You’ll assemble a benchtop tester that automatically performs current-voltage sweeps by driving an MCP4725 DAC-controlled electronic load, while dual INA219 modules capture current and voltage with 1% precision. The AS7265x 18-channel spectral sensor simultaneously records the cell’s response from 410 to 940 nm, logging every data point with DS3231 timestamps to a microSD card. A live TFT display shows the I-V curve and spectral profile as the sweep runs, giving immediate visual feedback on fill factor and quantum dot absorption peaks.

What You'll Learn

• Implementing high-side current sensing and bus voltage monitoring with INA219 modules on I2C
• Generating programmable load sweeps via MCP4725 DAC and a precision resistor network
• Capturing 18-channel spectral signatures with the AS7265x sensor for QD excitonic peak identification
• Building a timestamped data pipeline with DS3231 RTC and microSD logging for long-duration stability tests

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

PhD scholars and postdocs at IITs, IISc, and NITs developing quantum dot or perovskite solar cells who need a reliable testbed for initial device screening. M.Tech energy systems students working on Smart India Hackathon challenges or final‑year projects that demand real I‑V and spectral data. R&D engineers in Indian solar startups prototyping next‑gen materials, and faculty demonstrating advanced characterisation techniques in renewable energy labs.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.