Use e.force:createRecord.
Sample Code:
Component:
<aura:component implements=”flexipage:availableForAllPageTypes,force:appHostable” >
<lightning:button label=”Create Account” onclick=”{!c.createRecord}”/>
</aura:component>
Controller:
({
createRecord : function (component) {
var createRecordEvent = $A.get(“e.force:createRecord”);
createRecordEvent.setParams({
“entityApiName”: “Account”
});
createRecordEvent.fire();
}
})
Once the create record event is fired, it will take to you the newly created account record.