Yang Bai

All electrically functional materials will be eventually unified.

Dr. Yang Bai

Yang Bai


Assistant Professor
Energy Harvesting, Functional Materials

33 peer reviewed publications in international journals. The publications have been cited 437 times, of which the most cited publication accounts for 71 citations. The author has a h-index of 10.00. (Web of Science)


I am an Assistant Professor (Tenure Track) in Small Power Self-Sufficient Sensor Systems. My  research interests include piezoelectric and ferroelectric materials, perovskite materials, photo-ferroelectric materials and their applications in sensing and energy harvesting.

Research interests

  • Energy Harvesting
  • Multi-functional Materials
  • Photo-ferroelectrics
  • Piezoelectric Materials and Devices
  • Ferroelectricity

Professional and community activities

  • Committee Member of IOP Energy Group
  • Programme Committee Chair of EMSD American Ceramic Society

Selected publications

  • Bai, Yang (2021) Counterfeit band gaps caused by microstructural voids in photo-ferroelectric ceramics. - Open Ceramics 5, 100079 . [Original] [Self-archived]
  • Bai, Yang (2021) Photoresponsive Piezoelectrics. - Frontiers in materials 8, 636712 . [Original] [Self-archived]
  • Bai, Yang; Palosaari, Jaakko; Tofel, Pavel; Juuti, Jari (2020) A Single-Material Multi-Source Energy Harvester, Multifunctional Sensor, and Integrated Harvester-Sensor System-Demonstration of Concept. - Energy technology 8 (9), 2000461 . [Original]
  • Shafir, Or; Bai, Yang; Juuti, Jari; Grinberg, Ilya (2020) Visible-Light-Absorbing Potassium Niobate-Titanate-Molybdate Ferroelectrics. - Physical review applied 14 (4), 044052 . [Original] [Self-archived]
  • Balanov, Vasilii A.; Zhao, Zhijun; Pan, Mingjing; Feldhoff, Armin; Bai, Yang (2020) Sol–gel synthesis and structural characterization of band gap engineered ferroelectric perovskite oxide potassium sodium barium nickel niobate. - Journal of sol-gel science and technology 96 (3), 649–658 . [Original] [Self-archived]
  • Vats, Gaurav; Peräntie, Jani; Juuti, Jari; Seidel, Jan; Bai, Yang (2020) Coalition of Thermo-Opto-Electric Effects in Ferroelectrics for Enhanced Cyclic Multienergy Conversion. - Energy technology 8 (9), 2000500 . [Original]
  • Ducharne, Benjamin; Juuti, Jari; Bai, Yang (2020) A simulation model for narrow band gap ferroelectric materials. - Advanced theory and simulations 3 (9), 2000052 . [Original] [Self-archived]
  • Vats, Gaurav; Peräntie, Jani; Palosaari, Jaakko; Juuti, Jari; Seidel, Jan; Bai, Yang (2020) Current Modulation by Optoelectric Control of Ferroelectric Domains. - ACS applied electronic materials 2 (9), 2829–2836 . [Original] [Self-archived]
  • Trigona, C.; Palosaari, J.; Bai, Y. (2020) A vibrational energy harvester based on soft-nonlinearity for truly random excitation. (Artikkeli tieteellisessä konferenssijulkaisussa). - 2020 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2020. IEEE International Instrumentation and Measurement Technology Conference, 9128595. [Original] [Self-archived]
  • Bai, Yang; Xiang, Huaicheng; Jantunen, Heli; Juuti, Jari (2019) Multi-functional perovskites - an investigation of compositional and processing influence on microstructure, dielectric and ferroelectric properties. - European physical journal: special topics 228 (7), 1555-1573 . [Original] [Self-archived]
  • Vats, Gaurav; Bai, Yang; Zhang, Dawei; Juuti, Jari; Seidel, Jan (2019) Optical Control of Ferroelectric Domains: Nanoscale Insight into Macroscopic Observations. - Advanced optical materials 7 (11), 1800858 . [Original] [Self-archived]
  • Bai, Yang; Jantunen, Heli; Juuti, Jari (2019) Ferroelectric Oxides for Solar Energy Conversion, Multi-Source Energy Harvesting/Sensing, and Opto-Ferroelectric Applications. - ChemSusChem 12 (12), 2540-2549 . [Original] [Self-archived]
  • Xiang, Huaicheng; Bai, Yang; Varghese, Jobin; Li, Chunchun; Fang, Liang; Jantunen, Heli (2019) Ultralow temperature cofired BiZn2 VO6 dielectric ceramics doped with B2 O3 and Li2 CO3 for ULTCC applications. - Journal of the American Ceramic Society 102 (3), 1218-1226 . [Original] [Self-archived]
  • Bai, Yang; Jantunen, Heli; Juuti, Jari (2018) Hybrid, Multi-Source, and Integrated Energy Harvesters. - Frontiers in materials 5, 1-10, 65 . [Original] [Self-archived]
  • Bai, Yang; Vats, Gaurav; Seidel, Jan; Jantunen, Heli; Juuti, Jari (2018) Boosting photovoltaic output of ferroelectric ceramics by optoelectric control of domains. - Advanced materials 30 (43), 1803821 . [Original] [Self-archived]
  • Bai, Yang; Ducharne, Benjamin; Jantunen, Heli; Juuti, Jari (2018) Simulation and validation of temperature-dependent ferroelectric properties of multifunctional BCZT and KNBNNO ceramics. - Materials Research Express 5 (11), 116305 . [Original] [Self-archived]
  • Bai, Yang; Jantunen, Heli; Juuti, Jari (2018) Energy harvesting research : the road from single source to multisource. - Advanced materials 30 (34), 1707271 . [Original] [Self-archived]
  • Xiang, Huaicheng; Bai, Yang; Li, Chunchun; Fang, Liang; Jantunen, Heli (2018) Structural, thermal and microwave dielectric properties of the novel microwave material Ba 2 TiGe 2 O 8. - Ceramics international 44 (9), 10824-10828 . [Original] [Self-archived]
  • Bai, Yang; Tofel, Pavel; Hadas, Zdenek; Smilek, Jan; Losak, Petr; Skarvada, Pavel; Macku, Robert (2018) Investigation of a cantilever structured piezoelectric energy harvester used for wearable devices with random vibration input. - Mechanical systems and signal processing 106, 303-318 . [Original] [Self-archived]
  • Bai, Yang; Tofel, Pavel; Palosaari, Jaakko; Jantunen, Heli; Juuti, Jari (2017) A game changer : A multifunctional perovskite exhibiting giant ferroelectricity and narrow bandgap with potential application in a truly monolithic multienergy harvester or sensor. - Advanced materials 29 (29), 1-7, 1700767 . http://dx.doi.org/10.1002/adma.201700767. [Original] [Self-archived]
  • Bai, Yang; Siponkoski, Tuomo; Peräntie, Jani; Jantunen, Heli; Juuti, Jari (2017) Ferroelectric, pyroelectric, and piezoelectric properties of a photovoltaic perovskite oxide. - Applied physics letters 110 (6), 1-5, 063903 . [Original] [Self-archived]


Next Generation Power Sources for Self-sustainable Devices – Integrated Multi-source Energy Harvesters

In recent years, various energy harvesting techniques have been realised to overcome shortcoming of batteries in terms of lifespan, overall cost-ef