Not exactly. You need to define an analyzer first. Then use the analyzer in your mapping.
Then you can try just with a term or match query instead of a prefix query.
If you need further help, please provide a full recreation script as described in About the Elasticsearch category. It will help to better understand what you are doing. Please, try to keep the example as simple as possible.
A full reproduction script will help readers to understand, reproduce and if needed fix your problem. It will also most likely help to get a faster answer.