# Shining Light on Halide Perovskites: Teaching Analytical Chemistry Using Flexible, Inquiry-Based Experiments

## TL;DR

This paper describes an undergraduate chemistry lab using halide perovskites to teach analytical chemistry concepts through hands-on experiments.

## Contribution

The novel contribution is an inquiry-based lab module using 2D halide perovskites to teach analytical chemistry concepts.

## Key findings

- Students gained hands-on experience with perovskite synthesis, structure, and properties.
- The lab improved student engagement and learning gains in analytical chemistry concepts.
- The modular experiments can be adapted to different course and budget requirements.

## Abstract

Two-dimensional (2D) metal halide perovskites are promising
next
generation semiconducting materials at the forefront of research in
solar cells, LEDs, and other devices. Here, we report on an undergraduate
intermediate analytical chemistry laboratory experience where students
were taught fundamental chemistry concepts, including solubility,
complexation, spectroscopy, and microscopy, through the introduction
and study of 2D halide perovskite materials. Students explore multiple
facets of perovskite synthesis, structure, and properties through
a modular set of experiments that students used to form a holistic
picture of this material. Importantly, this inquiry-based lab supports
students through a guided research process, and students report high
interest and learning gains from an end of the semester survey. We
further discuss ways to adapt this lab to course, student, equipment,
and budget needs. Overall, this laboratory experience teaches and
applies the fundamental concepts and tools of analytical chemistry
to the contemporary materials research field.