Publications

Anu Kulandaivel, Uday Kumar Khanapuram, Rakesh Kumar Rajaboina, Prakash Kodali | Woodhead Publishing Series in Electronic and Optical Materials, Elsevier | Pages 45-83 | 21 Nov 2025

The surge in wearable electronics, Internet of Things, and AI-based systems necessitates sustainable, self-powered energy solutions, propelling the development of triboelectric nanogenerators (TENGs), particularly textile-based TENGs (T-TENGs). This chapter delves into the materials and fabrication strategies essential for optimizing the performance, flexibility, and usability of T-TENGs. It outlines the critical …

Lakshakoti Bochu, Prakash Kodali, Anu Kulandaivel, Rakesh Kumar Rajaboina, Uday Kumar Khanapuram | Woodhead Publishing Series in Electronic and Optical Materials, Elsevier | Pages 151-174 | 21 Nov 2025

Power management circuits (PMC) are the heart of energy harvesting devices that optimize power utilization in electronic gadgets. Triboelectric nanogenerators (TENGs) have changed the way we generate sustainable power. The power management system has evolved from maximizing output peak power to emphasizing energy conservation in capacitors and increasing the direct …

Supraja Potu, M. Navaneeth, Anjaly Babu, Rakesh Kumar R, K Uday Kumar, Prakash Kodali | Woodhead Publishing Series in Electronic and Optical Materials | Pages 115-149 | 21 Nov 2025

Triboelectric nanogenerators (TENGs) are a new energy harvesting technology that converts mechanical energy from the surroundings to generate electricity. Their potential applications range from selfpowered sensors to large-scale clean energy systems. TENG output performance influenced by many factors includes material selection, surface modifications (physical and chemical), device design, power management, …

P. Ravi Sankar, P. Supraja, K. Prakash, R. Rakesh Kumar, K. Uday Kumar | Wireless Power Technologies for Biomedical Devices; Springer | Pages 73–89 | 29 Nov 2024

The most significant way to tackle the energy issue is to convert energy from daily activities into usable electrical energy. The use of batteries, which have a difficult time being recycled and disposed of, does not endorse this idea. There aren’t many energy harvesters for electrical vibration energy harvesting; their …

Swati Panda, Sugato Hajra, R. Rakesh Kumar, K Uday Kumar, Ana Borrás, Yogendra Kumar Mishra, Hoe Joon Kim | Advances in Nanostructures Processing and Methodology to Grow Nanostructures Micro and Nano Technologies | Pages 251-323 | 20 Sep 2024

Triboelectric nanogenerators (TENGs) were originally invented in 2012 and since then developed a lot in the global scientific community as energy harvesters. TENGs offer superior features such as low weight, low cost, high output, and a wide choice of materials and device designs. TENGs have been investigated for a variety …

Advances in Zinc Oxide (ZnO) Nanostructures Based Nanogenerators: Challenges, Opportunities
P. Supraja, Siju Mishra, R. Rakesh Kumar, D. Haranth, K. Uday Kumar, Hitesh Borkar | Nova Science Publishers; | Vol. Advances in Energy Research. Volume 36 | Pages ISBN: 978-1-68507-869-0 | 06 May 2022

Zinc oxide (ZnO) has been one of the foremost studied materials over the last three decades. ZnO is an attractive material due to the easy availability of raw materials, low production costs, non-toxic, and easy to synthesize as nanostructures. ZnO nanostructures have created much interest due to their multifunctional applications …

R. Rakesh Kumar, K. Uday Kumar, D. Haranath | Optoelectronics Applications Woodhead Publishing Series in Electronic and Optical Materials | Pages 271-314 | 28 Jan 2022

Nowadays, nanocomposites of oxide materials have attracted a lot of attention due to their potential applications in solar cells, batteries, sensors, photodetectors, photocatalysis, lasers, and light-emitting diodes. Furthermore, nanocomposites offer new technology and business opportunities for various industries. Among various oxide nanocomposites, ZnO–TiO2 nanocomposites have shown great potential due to …

Savita Sharma, K. Uday Kumar, D. Haranath, R. Rakesh Kumar, and Hitesh Borkar | Advances in Energy Research; Nova Science Publishers, Inc. | Vol. 35 | Pages 189-214 | 11 Nov 2021
R Rakesh Kumar, K Uday Kumar, D Haranath | Multifunctional Nanostructured Metal Oxides for Energy Harvesting and Storage Devices; CRC Press | Vol. ISBN: 9780429296871 | Pages 338 | 21 May 2020

Metal oxide nanoparticles exhibit potential applications in energy and environmental fields, such as solar cells, fuel cells, hydrogen energy, and energy storage devices. This book covers all points from synthesis, properties, and applications of transition metal oxide nanoparticle materials in energy storage and conversion devices. Aimed at graduate-level students and …

R. Rakesh Kumar, K. Uday Kumar, and D. Haranath | Multifunctional Nanostructured Metal Oxides for Energy Harvesting and Storage Devices; CRC Press | Vol. 1 | Pages 79 | 21 May 2020

Nanostructures of transition metal oxides (NTMOs) have attracted a lot of attention since last decade because of their multifunctional properties. NTMOs are considered to be one of the most fascinating functional materials due to tunable physical and chemical properties with a wide range of applications that include energy storage, energy …