Gyan Sah
Home Work-gallery Resources Books Say hello →

Lab & beyond

Work in Pictures

Sometimes words are not enough. Here is what the work actually looks like.

Custom 3D-rendered measurement setup for CdSe:GQD photodetector

Measurement Setup

CdSe:GQD Photodetector Rig

I designed both the LED holder and sample stage in Fusion 360 and 3D-printed them in-house. The fixed geometry eliminates variable contact resistance that made earlier free-hand setups unreliable. This rendering was made in Blender for the research paper figure.

  • Blender
5x5mm silicon wafer on chip carrier with silver paint contacts

Device Under Test

CdSe:GQD Thin Film on Silicon

A 5 × 5 mm² silicon wafer coated with a CdSe:GQD composite thin film. The silver paint contacts are applied by hand under a microscope — each contact placed to ensure flat, repeatable electrical connection across every measurement run.

  • Thin Film
  • Silver Paint Contacts

Hardware Build

Automatic Temperature Controlled Fan

A custom-built automatic temperature-controlled fan system. The control unit features toggle switches for resistor and thermistor inputs, housed in a clean enclosure. The fan itself is mounted on an articulated 3D-printed arm, showcasing a practical integration of electronics and mechanical design.

  • Electronics
  • System Design
  • 3D Printing

Software Build

Email-to-Calendar AI Agent & App

A zero-code mobile frontend built with Google AppSheet to triage events extracted from my inbox. A background Google Apps Script uses Mistral AI to parse emails and log actionable events into a Google Sheet database. This app lets me quickly review and approve events with a swipe, pushing them directly to my Google Calendar.

  • AppSheet
  • Google Apps Script
  • Mistral AI

Content Creation & Social Media

IR Council Management Team

As part of the Management Team for the International Relations Council at SRM University, AP, I actively collaborated with the social media team. We conceptualized, shot, and edited promotional Instagram Reels for various international workshops (like the Taiwanese Tea & Mandarin Calligraphy Workshops) and cultural celebrations (Diwali, Dussehra) to drive student engagement and highlight cultural exchange on campus.

View Reel on Instagram ↗
  • Content Strategy
  • Video Production
  • Event Coordination
Hydrogen Balloon Flying
Filling Balloon with Hydrogen
NIT Warangal Setup
NIT Warangal Setup Detail

Shakti Photon Solutions

Complete PV Hydrogen Electrolyzer

A successful outdoor deployment of a complete PV Hydrogen Electrolyzer. This project culminated in using solar power to produce hydrogen and fly a balloon in the open air. This was an intensive, multi-disciplinary group work at Shakti Photon Solutions alongside Noah Jacob (CTO) and Gagan (Intern). We also successfully deployed the laboratory setup at NIT Warangal.

  • Renewable Energy
  • System Integration
  • Team Collaboration
Graphite Plate with Serpentine Channel
CNC Machining
Electrolyzer Assembly
Hydrogen Storage Tank
3D Printed Hydrogen Sensor

Shakti Photon Solutions

Hardware Prototyping & CNC Machining

Focusing on the deep hardware engineering aspects at Shakti Photon Solutions. We machined custom graphite plates with serpentine channels using a CNC machine, built acrylic storage tanks, and developed a 3D-printed Hydrogen Safety Sensor. This complex mechanical and electronic integration was a collaborative effort with Noah Jacob (CTO) and Gagan (Intern).

  • CNC Machining
  • Hardware Prototyping
  • Fluid Dynamics
  • Electronics & IoT

More images will be added as the work progresses. Every photograph here is from a real experimental session — not stock.

"The quieter you become, the more you can hear."

Home Work-gallery Resources Books

© 2026 Gyan Kumar Sah