NgCordova File does not generate file

I'm using the $ cordovaFile (ngCordova) + ionic for my application and need to store a json in a local file plus I'm not able to generate the file to populate with json.

controller.js

app.controller ('Electric Controller', function ($ scope, $ stateParams, jsonBanco, $ cordovaFile) {

        jsonBanco.getjson().then(function (data) {
        $scope.dados = data.dados;
            console.log($scope.dados);
    });
      document.addEventListener('deviceready', function () {

$cordovaFile.createFile(cordova.file.dataDirectory, "new_file.txt", true)
      .then(function (success) {
       console.log('FOI');
      }, function (error) {
        console.log('NAO FOI');
      });
});

});