Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Solar Thin Films, Inc. (the “Company”) on Form 10-Q for the period ended June 30, 2010 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert M. Rubin, Chief Executive Officer, certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement required by Section 906 has been provided to Solar Thin Films, Inc. and will be retained by Solar Thin Films, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

	/s/ Robert M. Rubin
August 23, 2010	Robert M. Rubin
	Chief Executive Officer
	(Principal Executive Officer)

Solar Thin Films, Inc. 10-Q