Page 103 - AWSAR 2.0

ultraviolet photoemission spectroscopy technique. Work function is defined as the minimum amount of energy required to remove free electrons from the surface of a material. The work function at Co/TiO2/Alq3 and Co/Alq3 interfaces was calculated to be 4.46 eV and 6.08 eV, respectively. The lower work function of the Co/TiO2/ Alq3 interface suggests that the electrons will be injected from Co to Alq3 with more ease in the presence of the TiO2 barrier. The electroluminescence study will be done on the prepared OLED with and without the TiO2 barrier layer to study the display performance. It is expected that due to the lower work function of the Co/TiO2/Alq3 interface, the device will operate on low power. As a result, the battery life/power consumption of electronic devices such as smart TVs, mobiles, laptops and iPads
Fig. 5. Bendable, rollable and transparent
made up of OLEDs will be enhanced.
In the future, smart TVs, laptops and mobile displays will get even thinner and lighter. Flexibility is another key feature of OLED technology. OLEDs can be made in a bendable, rollable and transparent form using
Dr Vaishali Phatak Londhe || 79
flexibleglassorfoils,asasubstrate,asshown in Fig. 5. My future work will be based on OLED fabrication with such flexible substrate for semi- transparent TVs, laptops and mobile displays. The device structure will be modified in such a way that it will consume bare minimum power. The days are not far when the Starwars movie like gadgets will be available in the market for the use by a common man.
Author Profile: Dr. Vaishali Phatak Londhe was awarded a Doctor of Philosophy (PhD) in Physics in 2012. The title of her thesis is ‘Nano-scale diffusion in thin films and multilayers’. During the research, she had hands-on experience of working on beamline ID-18 and ID-32 of the European Synchroton Radiation Facility, France, for nuclear resonance reflectivity measurements. She has also handled the secondary ion mass spectroscopy technique at the University of Clausthal, Germany. She joined the Department of Nanoscience and Technology, Bharathiar University, Coimbatore, as a Department of Science and Technology (DST) Woman Scientist in 2016 under the DST woman Scientist Scheme-A project. Her present project is ‘Study of spinterfaces in organic spin valve thin films’. The project was transferred to CSIR-NEIST, Jorhat, in July 2019. She published a research paper regarding her current project in an international journal (J. Phys. D: Appl. Phys.) in 2018. This research is financed by Women Scientist Scheme-A (WOS-A), DST, Government of India.