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Influence of TiO 2 Nano- particles on performance of Fabricated Organic Zener diode Presented By Ahmed Mohamed El-Sayed El-Mahalawy Thin Film laboratory,

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Presentation on theme: "Influence of TiO 2 Nano- particles on performance of Fabricated Organic Zener diode Presented By Ahmed Mohamed El-Sayed El-Mahalawy Thin Film laboratory,"— Presentation transcript:

1 Influence of TiO 2 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 Faculty of Science Physics Department Thin Film Lab

2 Organic Semiconductors Inorganic Semiconductors Organic Semiconductors 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 roomNo vacuum and no high temperature processes( o C) Processing Very high cost $100 / ft 2 Low cost in high large production $5 / ft 2 Cost

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

4 Experimental Work 1- Thin films of NTCDA were prepared using physical vapor deposition technique Edwards E306A 2- Thin films of TiO 2 were prepared using spin coating unit as interlayer between NTCDA and NiTTP (C 14 H 4 O 6 )

5 Preparation of Organic Zener Diode

6 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

7 Our prepared organic zener diodeCommercial zener diodes 15volt( with and without TiO 2 )15Volt (RD16S )Breakdown voltage 1.4 μA (without interlayer)and 21 μA (with TiO 2 interlayer) 21 μA (RD2.0S to RD120S and 1N5221B - 1N5263B)Reverse current 1.1×10 6 Ω (without interlayer) 2.9 ×10 4 Ω (with TiO 2 interlayer) 3.2 ×10 4 Ω (RD2.0S to RD120S Dynamic resistance

8 Future work Organic zener diode was successfully fabricated using NTCDA as (N-type semiconductor) and NiTTP as (P-type semiconductor) TiO 2 nano-particels interlayer improved the performance of NTCDA/NiTTP zener diode which was comparable to commercial zener diodes. Conclusion 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.

9 The Only Published Organic Zener Diode


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