The current research aims to investigate the effect of nickel doping on the structural and opto-electrical characteristics of zinc oxide thin films. Sol-gel spin coating technique has been utilized to deposit Zn1-xNixO (x=0, 0.005, 0.010, and 0.015) films on glass substrates. X-ray diffraction (XRD) analysis confirms the formation of crystalline zinc oxide thin films with hexagonal wurtzite structure. Williamson-Hall analysis has been performed to study the individual contribution of lattice strain and crystallite size to the peak broadening in the XRD pattern. Scanning electron microscopy (SEM) and UV-Visible spectroscopic techniques have been used to examine the surface morphology and optical properties of the deposited films. Transient photocurrent measurements have been performed on all the films under the exposure of ultraviolet (UV) light of wavelengths 365 and 254 nm with on/off cycle of 100 seconds, and various device key parameters such as sensitivity, responsivity and quantum efficiency, etc. have been determined. Sensitivities of the fabricated photodetectors (PDs) are found to be 5463%, 3809%, 3100%, and 831% for pristine ZnO, Zn0.995Ni0.005O, Zn0.99Ni0.01O, and Zn0.985Ni0.015O, respectively. The UV photodetection mechanism, which is based on the interaction between chemisorbed oxygen on the surface of ZnO and photo-generated holes, has been thoroughly discussed.

The inconsistent characteristics of renewable energy sources have led to a continual imbalance between the need and supply of energy. Therefore, developing adequate energy storage devices might be one solution...

No abstract

Learning outcomes The learning outcomes are as follows: to familiarize students with the concept of segmentation, targeting and positioning; to make students understand the need and process of building a brand; to help students to identify the market gap and meet customer’s requirement by delivering the right value proposition; and to examine the feasibility of business opportunity, develop a business plan and run a successful firm. Case overview/synopsis This case is about the quest of three MBA students who accidentally get into argument about footwear brands. This argument leads them to Punjabi ethnic footwear popularly known as “Punjabi Jutti.” They decide to understand the background of “Punjabi Jutti” and the possibility of developing a brand for the same. An extensive research was carried out through the various online and offline platforms. The research included searching through the existing literature, collecting data from the various online platforms such as e-commerce websites and interviews from the field. The research revealed that this traditional artwork is an unorganized sector. The manufacturers and marketers are two main parts of this business. However, the mainstay of the business is the skilled labors who know the art of making “Punjabi Jutti.” This art has been inherited by them from their previous generations. Also, it was found that there was good demand of the “Punjabi Jutti” in India and it was exported to various countries as well. Customers had a mix response toward these products. This extensive research has now put these students in a dilemma as to what should be the next step. Should they step into this business by creating their own brand? Will this entrepreneurship venture be sustainable? If they created a brand for the “Punjabi Jutti” then what kind of brand it would be? Complexity academic level Post graduate, entrepreneurs. Supplementary materials Teaching Notes are available for educators only. Subject code CSS 3: Entrepreneurship.

No abstract