Efficiency Improvement of Solar PV Panels by Coating Using Natural Substances

Title: Efficiency Improvement of Solar PV Panels by Coating Using Natural Substances

Authors: Anuraag Deka; Bikramjit Goswami

Publisher: Cogniverse Press, Nakari Gaon, Borigaon Siding, Jorhat-1, Assam, India

First Edition: August 2026

DOI: https://doi.org/10.5281/zenodo.22043673

ISBN: 978-81-68073-09-8 (Print Edition)

e-ISBN: 978-81-68073-10-4 (Digital Edition)

• Anuraag Deka – Research Scholar, Department of Electrical and Electronics Engineering, Assam Don Bosco University, Azara Campus, Assam, India
• Bikramjit Goswami – Associate Professor, Department of Electrical and Electronics Engineering, Assam Don Bosco University, Azara Campus, Assam, India

The development of electrical energy began with early observations of static electricity and gradually evolved into the generation of current electricity through sources such as hydropower. With increasing global energy demand, attention has expanded toward renewable sources such as wind and solar energy.

Solar photovoltaic technology has become one of the most important renewable energy resources for electricity generation. Improving and protecting solar PV panels through suitable coatings is therefore essential for maintaining optimum efficiency.

This book introduces different approaches to coating solar PV panels with natural substances such as aloe vera gel and chlorophyll extracted from spinach, edible ferns, mustard greens, and grass. These materials offer accessible and potentially sustainable alternatives for improving panel performance.

The book is intended to serve as a useful source of knowledge for learners and researchers interested in solar PV technology and natural coating applications.

Dr. Banalata Kalita
Former Assistant Professor
Department of Philosophy
Diphu Government College, Diphu, Assam

The increasing global demand for clean, sustainable, and affordable energy has made solar photovoltaic technology an important solution for future energy needs. Improving the efficiency and durability of solar PV panels has therefore become an important area of scientific research. While conventional synthetic coatings have enhanced panel performance, their cost, environmental impact, and sustainability concerns have encouraged the exploration of greener alternatives.

This book presents a study of natural substances as coating materials for solar photovoltaic panels. It combines fundamental concepts of solar energy with experimental investigations involving eco-friendly materials such as aloe vera gel and chlorophyll extracted from locally available plants, including spinach, mustard greens, edible ferns, and grass.

The work examines how natural coatings may contribute to improved light absorption, reduced reflection, self-cleaning characteristics, and enhanced power output while supporting environmental sustainability.

The book begins with the fundamentals of energy generation, solar PV panel structure, construction, design, efficiency, and performance. It then discusses artificial and natural coatings, coating techniques, and relevant research. The experimental chapters present the preparation of natural coating materials, application methods, experimental setup, performance evaluation, and comparative analysis under varying environmental conditions.

The authors hope that this work will provide useful insights for students, researchers, and practitioners interested in sustainable approaches to solar PV performance enhancement.

• Solar photovoltaic panel structure and design
• Efficiency and performance of solar PV panels
• Artificial and natural PV panel coatings
• Aloe vera gel as a natural coating
• Chlorophyll-based solar PV coatings
• Spray, dip, and spin coating methods
• Experimental evaluation of natural coatings
• Self-cleaning and anti-dust properties
• Thermal management and light transmission
• Sustainable approaches to solar energy technology