In order to only display results which are open access, go to the bottom of the filters on the left-hand side, expand the 'Open Access' filter and select 'All OA' by clicking on 'Limit to'. When this filter is applied, only publications that are open access will appear in the results list. As with all filters, this can be done with a blank search, or along with a keyword search or abstract search, to display results in a particular area, and can also be combined with other filters. 

Definition of Open Access filters

If you are using the Free Dimensions version or Dimensions Plus, you will have access to five OA filters, described below.

Closed

No freely available copy has been identified
All OA
Freely available copy is available
Gold
Free copy available on the publisher page, with or without an open licence
Green, Accepted & Submitted
Free copy of accepted or submitted version (or where version is unknown) in an OA repository
Green, PublishedFree copy of published version in an OA repository


If you are using Dimensions Analytics, you will have access to eight OA filters, described below.

All OA
Freely available copy is available
Pure Gold
Version Of Record (VOR) is free under an open licence from a fully OA journal
Hybrid
Version Of Record (VOR) is free under an open licence in a paid-access journal
Bronze
Article freely available on publisher page, but without an open licence
Green, Published
Free copy of published version available in an OA repository
Green, Accepted
Free copy of accepted version available in an OA repository
Green, Submitted
Free copy of submitted version (or where version is unknown) available in an OA repository
Closed
No freely available copy has been identified