Blar i NTNU Open på forfatter "Iversen, Bo B"

Viser treff 1-9 av 9

    • Enhanced thermoelectric performance and high-temperature thermal stability of p-type Ag-doped β-Zn4Sb3 

      Song, Lirong; Blichfeld, Anders Bank; Zhang, Jaiwai; Kasai, Hidetaka; Iversen, Bo B (Journal article, 2018)
      Here we report that the thermoelectric properties of bulk β-Zn4Sb3 can be improved in the range 300–575 K by Ag doping at the Zn sites. Proper Ag doping leads to decreased electrical resistivity and increased Seebeck ...

    • Enhanced Thermoelectric Performance through Tuning Bonding Energy in Cu2Se1–xSx Liquid-like Materials 

      Zhao, Kunpeng; Blichfeld, Anders Bank; Chen, Hongyi; Zhang, Tiansong; Zhu, Chenxi; Ren, Dudi; Hanus, Riley; Qiu, Pengfei; Iversen, Bo B; Xu, Fangfang; Snyder, G. Jeffrey; Xun, Shi; Chen, Lidong (Journal article; Peer reviewed, 2017)
      Thermoelectric materials require an optimal carrier concentration to maximize electrical transport and thus thermoelectric performance. Element doping and composition off-stoichiometry are the two general and effective ...

    • Experimental Investigation of Zinc Antimonide Thin Film Thermoelectric Element over Wide Range of Operating Conditions 

      Mirhosseini, Mojtaba; Rezania, Alireza; Blichfeld, Anders Bank; Iversen, Bo B; Rosendahl, Lasse A. (Journal article, 2017)
      Zinc antimonide compounds are among the most efficient thermoelectric (TE) materials with exceptional low thermal conductivity at moderate temperatures up to 350 °C. This study aims to evaluate the performance of a zinc ...

    • Extremely low thermal conductivity and high thermoelectric performance in liquid-like Cu2Se1-xSx polymorphic materials 

      Zhao, Kunpeng; Blichfeld, Anders Bank; Eikeland, Espen; Qiu, Pengfei; Ren, Dudi; Iversen, Bo B; Shi, Xun; Chen, Lidong (Journal article, 2017)
      Recently, copper chalcogenides Cu2−xδ (δ = S, Se, Te) have attracted great attention due to their exceptional thermal and electrical transport properties. Besides these binary Cu2−xδ compounds, the ternary Cu2−xδ solid ...

    • Formation mechanism and growth of MNbO3,M=K, Na by in situ X-ray diffraction 

      Skjærvø, Susanne Linn; Sommer, Sanna; Nørby, Peter; Bøjesen, Espen Drath; Grande, Tor; Iversen, Bo B; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2017)
      Hydrothermal synthesis is a well-established method to produce complex oxides, and is a potential interesting approach to synthesize stoichiometric lead-free piezoelectric K0.5Na0.5NbO3. Due to challenges in obtaining the ...

    • High thermoelectric performance and low thermal conductivity in Cu2−yS1/3Se1/3Te1/3 liquid-like materials with nanoscale mosaic structures 

      Zhao, Kunpeng; Zhu, Chenxi; Qiu, Pengfei; Blichfeld, Anders Bank; Eikeland, Espen; Ren, Dudi; Iversen, Bo B; Xu, Fangfang; Shi, Xun; Chen, Lidong (Journal article, 2017)
      Mosaic-crystal microstructure is one of the optimal strategies for decoupling and balancing thermal and electrical transport properties in thermoelectric materials. Herein, we successfully achieve the desired nanoscale ...

    • Revealing the Slow Decomposition Kinetics of Type-I clathrate Ba8Ga16Ge30 

      Reardon, Hazel; Blichfeld, Anders Bank; Kasai, Hidetaka; Yin, Hao; Bøjesen, Espen Drath; Iversen, Bo B (Journal article; Peer reviewed, 2017)
      Inconsistencies in high temperature thermoelectric property measurements of Ba8Ga16Ge30 have prompted our study on the thermal stability of this heavily studied inorganic clathrate. Using X-ray diffraction, thermal analysis, ...

    • Thermoelectric properties of Cu2Se1−xTex solid solutions 

      Zhao, Kunpeng; Guan, Mengjia; Qiu, Pengfei; Blichfeld, Anders Bank; Eikeland, Espen; Zhu, Chenxi; Ren, Dudi; Xu, Fangfang; Iversen, Bo B; Xun, Shi; Chen, Lidong (Journal article, 2018)
      Binary Cu2Se and Cu2Te have gained great attention recently because of their interesting and abnormal physical properties, such as ultralow thermal conductivity, high carrier mobility, large effective mass of carriers and ...

    • Ultrahigh thermoelectric performance in Cu2−ySe0.5S0.5 liquid-like materials 

      Zhao, Kunpeng; Qiu, Pengfei; Song, Qingfeng; Blichfeld, Anders Bank; Eikeland, Espen; Ren, Dudi; Ge, Binghui; Iversen, Bo B; Shi, Xun; Chen, Lidong (Journal article, 2017)
      Liquid-like thermoelectric materials have recently received heightened attentions due to their exceptional thermal and electrical transport properties. As a typical example, Cu2−ySe has good electrical transport properties ...