Organic photosensitive cells grown on rough electrode with nano-scale morphology control

Yang, Fan; Forrest, Stephen R

Organic photosensitive cells grown on rough electrode with nano-scale morphology control

Patent · Tue Jun 07 04:00:00 EDT 2011

OSTI ID:1021893

Yang, Fan ^[1]; Forrest, Stephen R ^[2]

Piscataway, NJ
Ann Arbor, MI

An optoelectronic device and a method for fabricating the optoelectronic device includes a first electrode disposed on a substrate, an exposed surface of the first electrode having a root mean square roughness of at least 30 nm and a height variation of at least 200 nm, the first electrode being transparent. A conformal layer of a first organic semiconductor material is deposited onto the first electrode by organic vapor phase deposition, the first organic semiconductor material being a small molecule material. A layer of a second organic semiconductor material is deposited over the conformal layer. At least some of the layer of the second organic semiconductor material directly contacts the conformal layer. A second electrode is deposited over the layer of the second organic semiconductor material. The first organic semiconductor material is of a donor-type or an acceptor-type relative to the second organic semiconductor material, which is of the other material type.

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Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States)

Sponsoring Organization:: USDOE

Assignee:: The Trustees of Princeton University (Princeton, NJ)

Patent Number(s):: 7,955,889

Application Number:: 11/483,642

OSTI ID:: 1021893

Country of Publication:: United States

Language:: English

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