It is a great idea to build a solar cell phone charger as it could prove to be handy. Especially if you are in a remote location or don't have electricity available to you. You can just plug your phone in the charger and put the solar plates in the open area with enough sunlight. Interesting? It is rather easy to build this simple circuit by yourself. Check out the circuit diagram below.
As you can see, the only components we require are few solar panels and a boost converter module. The solar phone charger circuit, given on the circuit digest website and a detailed explanation can make it very easy to build a charger by yourself.