Ahmed Mohamed El-Sayed

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Presentation transcript:

Ahmed Mohamed El-Sayed Faculty of Science Physics Department Thin Film Lab Influence of TiO2 Nano-particles on performance of Fabricated Organic Zener diode Presented By Ahmed Mohamed El-Sayed El-Mahalawy Thin Film laboratory, Physics Department, Faculty of Science, Suez Canal University, Ismailia, Egypt

Organic Semiconductors Inorganic Semiconductors Organic Rigid and should be prepared on glass, Si, GaAs, ….or any rigid substrate. Lighter, more flexible, compatible with plastic substrates and have high electron mobility. Advantages Needs high vacuum techniques and high cost Biodegradable, and not explained in details yet Disadvantages Ultra Clean room No vacuum and no high temperature processes(60-120oC) Processing Very high cost $100 / ft2 Low cost in high large production $5 / ft2 Cost

Organic Electronics Revolution Organic FET Organic LED Organic RFID Organic PVC First Organic Microprocessor (2015)

Experimental Work (C14 H4 O6) 1- Thin films of NTCDA were prepared using physical vapor deposition technique Edwards E306A 2- Thin films of TiO2 were prepared using spin coating unit as interlayer between NTCDA and NiTTP

Preparation of Organic Zener Diode

Characterization the Prepared Devices The current–voltage (I–V) characteristics of the fabricated devices were investigated at room temperature by using a computerized electrometer 6517B under dark condition

Our prepared organic zener diode Commercial zener diodes 15volt( with and without TiO2) 15Volt (RD16S ) Breakdown voltage 1.4 μA (without interlayer)and 21 μA (with TiO2 interlayer) 21 μA (RD2.0S to RD120S and 1N5221B - 1N5263B) Reverse current 1.1×106Ω (without interlayer) 2.9 ×104Ω (with TiO2 interlayer) 3.2 ×104Ω (RD2.0S to RD120S Dynamic resistance

Conclusion Future work Organic zener diode was successfully fabricated using NTCDA as (N-type semiconductor) and NiTTP as (P-type semiconductor) TiO2 nano-particels interlayer improved the performance of NTCDA/NiTTP zener diode which was comparable to commercial zener diodes. Future work We are going to complete this experiment by investigating the effect of interlayer thickness. We are planning to exploit sensitivity of NTCDA in fabrication gas sensors in the form of diode We are planning to use this potential organic material NTCDA in photovoltaic applications in elastic forms.

The Only Published Organic Zener Diode