Adding RTE Plugins in custom widget

Hi,

I have created a custom widget in which i have a rte defined as below:

                        this.textField1 = new  CQ.form.RichText({ 
                            width : 'auto', 
                            "stateful" : false 
                        }); 
                        this.add(this.textField1);

The rich text field appears but with out the plugins(subscript, superscript etc).

Could someone suggest me a way to add the plugins too.