Dr. Muhammad Ikram obtained his Master's degree (M. Phil Physics) from Bahauddin Zakariya University, Multan, Pakistan in 2010. He obtained his Ph.D. degree in Physics from the Department of Physics, Government College University (GCU) Lahore through the Pak-US joint project between the Department of Physics, GCU Lahore, Pakistan, and the University of Delaware, USA in 2015. He served as deputy director of Manuscript Science at Punjab textbook board (Pakistan). Later on (2017-to date), Ikram joined the Department of Physics, GC University Lahore as an Assistant Professor of Physics and Principal of Solar Cell Applications Lab. Ikram received the Seal of Excellence Marie Skłodowska Curie Actions Individual Fellowship in 2017 and 2020. In 2021, Ikram was included in the 2 % top scientists from Pakistan announced by Stanford University. His research interest involves the synthesis and characterization of inorganic semiconductor nanomaterials, 2D materials for water treatment optoelectronic, and electrocatalytic applications.Mr. Ali Raza obtained his B.S (Physics) degree from the University of Gujrat (Punjab, Pakistan) in 2016 and his Master's degree (M. Phil) in Material Physics from Riphah International University, Islamabad Pakistan in 2019. Raza completed his M. Phil research work in the Solar Cell Applications Lab at GCU Lahore (Punjab, Pakistan) and later worked as a Research Associate in the same lab on the field of catalytic and energy harvesting applications of pure and engineered 2D materials (TMDCs, Graphene, h-BN, and MXenes). Currently, he is serving as Lecturer (Research) at the Department of Physics, University of Sialkot, Punjab, and has enrolled as a Ph.D. scholar at CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, CAS.  His current research directions are the fabrication of functional 2D-Materials for catalytic and other energy-harvesting applications.Prof.  Dr. Salamat Ali is working as a Professor of Physics at Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University Lahore Campus, and Retired as a Full Professor of Physics from GC University Lahore. He has completed his Ph.D. in 1996 from the Durham University, U.K. in Superconductivity and Magnetism and his Post-Doc. in 2006 from the K.F. University of Graz, Austria, with specialization in Nanotechnology. He also completed training in Solar Cell Technology from the University of Delaware, USA in 2012. His current research interests include Water purifications, Sensor technology, Development of medicines for cancer treatment. He has 35 years of experience in Material Science.

• Introduction.- Advances in Ultrathin 2D-materials.- Composition and Materials Chemistry.- Synthetic Protocols.- 2D-Heterostructures.- Energy-related Applications.- Concluding Remarks and Outlook.

Dr. Muhammad Ikram obtained his Master's degree (M. Phil Physics) from Bahauddin Zakariya University, Multan, Pakistan in 2010. He obtained his Ph.D. degree in Physics from the Department of Physics, Government College University (GCU) Lahore through the Pak-US joint project between the Department of Physics, GCU Lahore, Pakistan, and the University of Delaware, USA in 2015. He served as deputy director of Manuscript Science at Punjab textbook board (Pakistan). Later on (2017-to date), Ikram joined the Department of Physics, GC University Lahore as an Assistant Professor of Physics and Principal of Solar Cell Applications Lab. Ikram received the Seal of Excellence Marie Skłodowska Curie Actions Individual Fellowship in 2017 and 2020. In 2021, Ikram was included in the 2 % top scientists from Pakistan announced by Stanford University. His research interest involves the synthesis and characterization of inorganic semiconductor nanomaterials, 2D materials for water treatment optoelectronic, and electrocatalytic applications.Mr. Ali Raza obtained his B.S (Physics) degree from the University of Gujrat (Punjab, Pakistan) in 2016 and his Master's degree (M. Phil) in Material Physics from Riphah International University, Islamabad Pakistan in 2019. Raza completed his M. Phil research work in the Solar Cell Applications Lab at GCU Lahore (Punjab, Pakistan) and later worked as a Research Associate in the same lab on the field of catalytic and energy harvesting applications of pure and engineered 2D materials (TMDCs, Graphene, h-BN, and MXenes). Currently, he is serving as Lecturer (Research) at the Department of Physics, University of Sialkot, Punjab, and has enrolled as a Ph.D. scholar at CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, CAS.  His current research directions are the fabrication of functional 2D-Materials for catalytic and other energy-harvesting applications.Prof.  Dr. Salamat Ali is working as a Professor of Physics at Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University Lahore Campus, and Retired as a Full Professor of Physics from GC University Lahore. He has completed his Ph.D. in 1996 from the Durham University, U.K. in Superconductivity and Magnetism and his Post-Doc. in 2006 from the K.F. University of Graz, Austria, with specialization in Nanotechnology. He also completed training in Solar Cell Technology from the University of Delaware, USA in 2012. His current research interests include Water purifications, Sensor technology, Development of medicines for cancer treatment. He has 35 years of experience in Material Science.

• Introduction.- Advances in Ultrathin 2D-materials.- Composition and Materials Chemistry.- Synthetic Protocols.- 2D-Heterostructures.- Energy-related Applications.- Concluding Remarks and Outlook.

Dr. Muhammad Ikram obtained his Master's degree (M. Phil Physics) from Bahauddin Zakariya University, Multan, Pakistan in 2010. He obtained his Ph.D. degree in Physics from the Department of Physics, Government College University (GCU) Lahore through the Pak-US joint project between the Department of Physics, GCU Lahore, Pakistan, and the University of Delaware, USA in 2015. He served as deputy director of Manuscript Science at Punjab textbook board (Pakistan). Later on (2017-to date), Ikram joined the Department of Physics, GC University Lahore as an Assistant Professor of Physics and Principal of Solar Cell Applications Lab. Ikram received the Seal of Excellence Marie Skłodowska Curie Actions Individual Fellowship in 2017 and 2020. In 2021, Ikram was included in the 2 % top scientists from Pakistan announced by Stanford University. His research interest involves the synthesis and characterization of inorganic semiconductor nanomaterials, 2D materials for water treatment optoelectronic, and electrocatalytic applications.Mr. Ali Raza obtained his B.S (Physics) degree from the University of Gujrat (Punjab, Pakistan) in 2016 and his Master's degree (M. Phil) in Material Physics from Riphah International University, Islamabad Pakistan in 2019. Raza completed his M. Phil research work in the Solar Cell Applications Lab at GCU Lahore (Punjab, Pakistan) and later worked as a Research Associate in the same lab on the field of catalytic and energy harvesting applications of pure and engineered 2D materials (TMDCs, Graphene, h-BN, and MXenes). Currently, he is serving as Lecturer (Research) at the Department of Physics, University of Sialkot, Punjab, and has enrolled as a Ph.D. scholar at CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, CAS.  His current research directions are the fabrication of functional 2D-Materials for catalytic and other energy-harvesting applications.Prof.  Dr. Salamat Ali is working as a Professor of Physics at Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University Lahore Campus, and Retired as a Full Professor of Physics from GC University Lahore. He has completed his Ph.D. in 1996 from the Durham University, U.K. in Superconductivity and Magnetism and his Post-Doc. in 2006 from the K.F. University of Graz, Austria, with specialization in Nanotechnology. He also completed training in Solar Cell Technology from the University of Delaware, USA in 2012. His current research interests include Water purifications, Sensor technology, Development of medicines for cancer treatment. He has 35 years of experience in Material Science.

• Introduction.- Advances in Ultrathin 2D-materials.- Composition and Materials Chemistry.- Synthetic Protocols.- 2D-Heterostructures.- Energy-related Applications.- Concluding Remarks and Outlook.