Electronic parameters of high barrier Au/Rhodamine-101/n-Inp Schottky diode with organic interlayer

Gullu O., AYDOĞAN Ş., TURUT A.

THIN SOLID FILMS, cilt.520, sa.6, ss.1944-1948, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 520 Sayı: 6
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.tsf.2011.09.043
  • Dergi Adı: THIN SOLID FILMS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1944-1948
  • Anahtar Kelimeler: Devices, Schottky barriers, Organics, Surfaces and interfaces, HEIGHT ENHANCEMENT, ELECTRICAL-PROPERTIES, SI/AL STRUCTURE, INP, CONTACTS, STABILITY, TRANSPORT, JUNCTION
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this work, we present that Rhodamine-101 (Rh-101) organic molecules can control the electrical characteristics of conventional Au/n-InP metal-semiconductor contacts. An Au/n-InP Schottky junction with Rh-101 interlayer has been formed by using a simple cast process. A potential barrier height as high as 0.88 eV has been achieved for Au/Rh-101/n-InP Schottky diodes, which have good current-voltage (I-V) characteristics. This good performance is attributed to the effect of formation of interfacial organic thin layer between Au and n-InP. By using capacitance-voltage measurement of the Au/Rh-101/n-InP Schottky diode the diffusion potential and the barrier height have been calculated as 0.78 V and 0.88 eV, respectively. From the I-V measurement of the diode under illumination, short circuit current and open circuit voltage have been extracted as 1.70 mu A and 240 mV, respectively. (C) 2011 Elsevier B.V. All rights reserved.