Carrier Injection Mechanisms in Diketopyrrolopyrrole Organic Semiconductors

POSTER

Abstract

Organic semiconductors based on diketopyrrolopyrrole (DPP) are a new class of small molecule semiconductors which are air-stable, possess relatively high mobilities, and have been recently shown to undergo excitonic singlet fission. Realizing high quality (Ohmic) contacts to DPP is essential for the fabrication of high quality devices. In this work we use a combination of scanning Kelvin probe microscopy and electrical transport measurements to spatially map the work function in several DPP-based semiconductors and study the carrier injection mechanism in thermally evaporated DPP films.

Presenters

  • Shawn Kilpatrick

    • NanoScience, CUNY Advanced Science Research Center

Authors

  • Shawn Kilpatrick

    • NanoScience, CUNY Advanced Science Research Center

  • Vishal Narang

    • NanoScience, CUNY Advanced Science Research Center
    • The Graduate Center, City University of New York

  • Andrew Levine

    • NanoScience, CUNY Advanced Science Research Center

  • MAJHARUL HOQUE

    • NanoScience, CUNY Advanced Science Research Center
    • The Graduate Center, City University of New York

  • Adam Braunschweig

    • NanoScience, CUNY Advanced Science Research Center
    • The Graduate Center, City University of New York

  • Milan Begliarbekov

    • NanoScience, CUNY Advanced Science Research Center
    • The Graduate Center, City University of New York
    • CUNY Graduate Center