A good book for spectroscopy is

H.H. Perkampus, Encyclopedia of Spectroscopy

All the best for your research, Thomas

These books are great for a foundational understanding of the major techniques.

• "Principles of Materials Characterization and Metrology" by Kannan M. Krishnan: This book provides a comprehensive discussion of the physical principles and practical applications of a wide range of characterization techniques. It covers everything from crystallography and diffraction to various forms of microscopy and spectroscopy, making it a strong choice for students and researchers.
• "Materials Characterization: Introduction to Microscopic and Spectroscopic Methods" by Yang Leng: This is a popular textbook for introductory courses. It balances theoretical concepts with practical application, covering common methods for microstructural analysis and chemical analysis with minimal mathematical and physical derivations. It's known for being easy to read and having a good set of practice questions.
• "Fundamentals of Microstructural Characterization of Materials" by Hamid Garmestani and Jincheng Wang: This book provides a solid resource for understanding various techniques used in materials characterization. It delves into spectroscopic methods, electron microscopy, and X-ray diffraction, with explanations of fundamental principles and practical sample preparation techniques.
• "ASM Handbook, Volume 10: Materials Characterization": Published by ASM International, this is a highly detailed and practical handbook. It's a go-to reference for researchers and engineers in the field. Each article on a characterization technique begins with a simplified overview, lists common applications and limitations, and provides information on sample requirements.

Best of luck in your research.

Materials Science and Engineering: An Introduction" by William D. Callister Jr.

"Thermodynamics in Materials Science" by Robert DeHoff is a good option.