Google Scholar also includes the full-text of many open access dissertations; however, there isn't a straightforward way to limit a search to only find dissertations.
The Open Access Dissertations and Theses Collection consists of electronic versions of dissertations and theses produced by students of the Southern Baptist Theological Seminary.
Open Access and Dissertation Embargoes | Dissertation Reviews
PQDT Open provides the full text of open access dissertations and theses free of charge. The authors of these dissertations and theses have opted to publish as open access instead of publishing in subscription databases. The "ProQuest Dissertations & Theses Global" database provides full text access to dissertations for current Biola students, staff, and faculty.
Hegde, Ganesh Krishna, "Modeling The Atomic And Electronic Structure Of Metal-Metal, Metal-Semiconductor And Semiconductor-Oxide Interfaces" (2013). Open Access Dissertations. Paper 124.Open Access Dissertations and Theses (OATD), is an index of almost 2 million electronic records of dissertations and graduate-level theses published around the world. Metadata (information about the theses) comes from over 600 colleges, universities, and research institutions. In addition, links to the record within the originating institution’s repository are included and some of the original records include access to full-text dissertations and theses.The library does not own most of the dissertations in D&T. Once you've identified the dissertation you need, we may be able to get it for you by (but see Open Access Dissertations below).Authors who wish to make their dissertations available through both ProQuest and the University of Chicago Repository (currently under development) will have that option. Dissertations in our repository will be open access dissertations, freely available to all at no cost to the author.