Kyunghan Ahn, Ph.D. - Publications

Affiliations: 
2007 Iowa State University, Ames, IA, United States 
Area:
Materials Science Engineering

42 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2019 Lim SJ, Nam G, Shin S, Ahn K, Lee Y, You TS. Anionic Doping and Cationic Site Preference in CaYbAlSbGe ( x = 0.2, 0.5, 0.7): Origin of the Enhanced Seebeck Coefficient and the Structural Transformation. Inorganic Chemistry. PMID 30985118 DOI: 10.1021/Acs.Inorgchem.9B00181  0.429
2019 Lee J, Ahn K, Kim K, Jo H, Yoon JS, Moon D, Shin WH, Ok KM, You T. Effect of Rare-Earth Metals Substitution for Ca on the Crystal Structure and Thermoelectric Properties of the Ca11–xRExSb10–y System Crystal Growth & Design. 19: 3498-3508. DOI: 10.1021/Acs.Cgd.9B00368  0.358
2018 Ginting D, Lin CC, Rathnam L, Kim G, Yun JH, So HS, Lee H, Yu BK, Kim SJ, Ahn K, Rhyee JS. Enhancement of Thermoelectric Performance in Na-doped Pb0.6Sn0.4Te0.95-xSexS0.05 via Breaking the Inversion Symmetry, Band Convergence, and Nanostructuring by Multiple Elements Doping. Acs Applied Materials & Interfaces. PMID 29565556 DOI: 10.1021/Acsami.7B18362  0.437
2018 Lin CC, Kim G, Ginting D, Ahn K, Rhyee JS. Enhancement of Thermoelectric Performances in Topological Crys-tal Insulator Pb0.7Sn0.3Se via Weak Perturbation of the Topological State and Chemical Potential Tuning by Chlorine Doping. Acs Applied Materials & Interfaces. PMID 29533597 DOI: 10.1021/Acsami.8B00571  0.446
2018 Ginting D, Lin C, Kim G, Yun JH, Yu B, Kim S, Ahn K, Rhyee J. Enhancement of thermoelectric performance via weak disordering of topological crystalline insulators and band convergence by Se alloying in Pb0.5Sn0.5Te1 − xSex Journal of Materials Chemistry A. 6: 5870-5879. DOI: 10.1039/C8Ta00381E  0.308
2018 Cho H, Kim JH, Back SY, Ahn K, Rhyee J, Park S. Enhancement of thermoelectric properties in CuI-doped Bi2Te2.7Se0.3 by hot-deformation Journal of Alloys and Compounds. 731: 531-536. DOI: 10.1016/J.Jallcom.2017.10.016  0.38
2018 Lin C, Ginting D, Kim G, Ahn K, Rhyee J. High thermoelectric performance and low thermal conductivity in K-doped SnSe polycrystalline compounds Current Applied Physics. 18: 1534-1539. DOI: 10.1016/J.Cap.2018.09.011  0.407
2018 Back SY, Cho H, Kim JH, Ahn K, Rhyee J. Enhancement of Thermoelectric Properties in n-Type Cu 0.01 Bi 2 Te 2.3+ x Se 0.7 (0 ≤ x ≤ 0.7) Compounds with Te-Excess Electronic Materials Letters. 14: 139-145. DOI: 10.1007/S13391-018-0021-6  0.406
2017 Choi W, Lee J, Lee Y, Ahn K, You TS. Single and double-doping effects on the thermoelectric properties of two Zintl compounds: Eu11Bi8.07(2)Sn1.93 and Eu10.74(2)K0.26Bi9.14(2)Sn0.86. Dalton Transactions (Cambridge, England : 2003). PMID 28848966 DOI: 10.1039/C7Dt02410J  0.331
2017 Lee YK, Ahn K, Cha J, Zhou C, Kim HS, Choi G, Chae SI, Park JH, Lee Y, Park CH, Cho SP, Park SH, Sung YE, Lee WB, Hyeon T, et al. Enhancing p-type thermoelectric performances of polycrystalline SnSe via tuning phase transition temperature. Journal of the American Chemical Society. PMID 28708407 DOI: 10.1021/Jacs.7B05881  0.426
2017 Nam G, Choi W, Lee J, Lim SJ, Jo H, Ok KM, Ahn K, You TS. Effect of MultiSubstitution on the Thermoelectric Performance of the Ca11-xYbxSb10-yGez (0 ≤ x ≤ 9; 0 ≤ y ≤ 3; 0 ≤ z ≤ 3) System: Experimental and Theoretical Studies. Inorganic Chemistry. PMID 28558202 DOI: 10.1021/Acs.Inorgchem.7B00617  0.331
2017 Ahn K, Shin H, Im J, Park SH, Chung I. ZnTe Alloying Effect on Enhanced Thermoelectric Properties of p-type PbTe. Acs Applied Materials & Interfaces. PMID 28051844 DOI: 10.1021/Acsami.6B15295  0.327
2017 Nam G, Choi W, Jo H, Ok KM, Ahn K, You T. Influence of Thermally Activated Solid-State Crystal-to-Crystal Structural Transformation on the Thermoelectric Properties of the Ca5–xYbxAl2Sb6(1.0 ≤x≤ 5.0) System Chemistry of Materials. 29: 1384-1395. DOI: 10.1021/Acs.Chemmater.6B05281  0.391
2017 Lee MH, Yun JH, Ahn K, Rhyee J. Thermoelectric properties and chemical potential tuning by Cu-doping in n-type ionic conductors Cu x Ag 2−x Se 0.5 Te 0.5 Journal of Physics and Chemistry of Solids. 111: 214-218. DOI: 10.1016/J.Jpcs.2017.07.034  0.368
2017 Kim YM, Lydia R, Kim J, Lin C, Ahn K, Rhyee J. Enhancement of thermoelectric properties in liquid-phase sintered Te-excess bismuth antimony tellurides prepared by hot-press sintering Acta Materialia. 135: 297-303. DOI: 10.1016/J.Actamat.2017.06.036  0.468
2016 Park K, Ahn K, Cha J, Lee S, Chae SI, Cho SP, Ryee S, Im J, Lee J, Park SD, Han MJ, Chung I, Hyeon T. Extraordinary Off-Stoichiometric Bismuth Telluride for Enhanced n-Type Thermoelectric Power Factor. Journal of the American Chemical Society. PMID 27763764 DOI: 10.1021/Jacs.6B09222  0.362
2015 Ahn K, Kong H, Uher C, Kanatzidis MG. Thermoelectric properties of p-type Ag1-x(Pb1-ySny)mSb1-zTem+2 Journal of Solid State Chemistry. DOI: 10.1016/J.Jssc.2016.03.018  0.403
2014 Woo H, Nam G, Jang E, Kim J, Lee Y, Ahn K, You TS. Single-crystal growth and size control of three novel polar intermetallics: Eu2.94(2)Ca6.06In8Ge8, Eu3.13(2)Ca5.87In8Ge8, and Sr3.23(3)Ca5.77In8Ge8 with crystal structure, chemical bonding, and magnetism studies. Inorganic Chemistry. 53: 4669-77. PMID 24754445 DOI: 10.1021/Ic500340X  0.311
2013 Ahn K, Ryu B, Korolev D, Kang YJ. Substantial enhancement in intrinsic coercivity on M-type strontium hexaferrite through the increase in magneto-crystalline anisotropy by co-doping of group-V and alkali elements Applied Physics Letters. 103: 242417. DOI: 10.1063/1.4850517  0.347
2013 Ahn K, Biswas K, He J, Chung I, Dravid V, Kanatzidis MG. Enhanced thermoelectric properties of p-type nanostructured PbTe-MTe (M = Cd, Hg) materials Energy and Environmental Science. 6: 1529-1537. DOI: 10.1039/C3Ee40482J  0.356
2013 Nam G, Jeon J, Kim Y, Kang SK, Ahn K, You TS. Combined effect of chemical pressure and valence electron concentration through the electron-deficient Li substitution on the RE4LiGe 4 (RE = La, Ce, Pr, and Sm) system Journal of Solid State Chemistry. 205: 10-20. DOI: 10.1016/J.Jssc.2013.06.027  0.412
2012 Kim SI, Hwang S, Roh JW, Ahn K, Yeon D, Lee KH, Kim SW. Experimental evidence of enhancement of thermoelectric properties in tellurium nanoparticle-embedded bismuth antimony telluride Journal of Materials Research. 27: 2449-2456. DOI: 10.1557/Jmr.2012.273  0.358
2012 Ahn K, Cho E, Rhyee J, Kim SI, Hwang S, Kim H, Lee SM, Lee KH. Improvement in the thermoelectric performance of the crystals of halogen-substituted In4Se3−xH0.03 (H = F, Cl, Br, I): Effect of halogen-substitution on the thermoelectric properties in In4Se3−x Journal of Materials Chemistry. 22: 5730. DOI: 10.1039/C2Jm16369A  0.337
2012 Lee K, Hwang S, Ryu B, Ahn K, Roh J, Yang D, Lee S, Kim H, Kim S. Enhancement of the Thermoelectric Performance of Bi0.4Sb1.6Te3 Alloys by In and Ga Doping Journal of Electronic Materials. 42: 1617-1621. DOI: 10.1007/S11664-012-2356-3  0.371
2012 Hwang S, Kim S, Ahn K, Roh JW, Yang D, Lee S, Lee K. Enhancing the Thermoelectric Properties of p-Type Bulk Bi-Sb-Te Nanocomposites via Solution-Based Metal Nanoparticle Decoration Journal of Electronic Materials. 42: 1411-1416. DOI: 10.1007/S11664-012-2280-6  0.302
2012 Ryan DH, Lee-Hone NR, Cadogan JM, Ahn K, Pecharsky VK, Gschneidner KA. Doping-induced valence change in Yb 5 Ge 4 - x (Sb, Ga) x : ( x ≤ 1) Hyperfine Interactions. 208: 59-63. DOI: 10.1007/S10751-011-0415-4  0.526
2011 Rhyee JS, Ahn K, Lee KH, Ji HS, Shim JH. Enhancement of the thermoelectric figure-of-merit in a wide temperature range in In(4) Se(3-x) Cl(0.03) bulk crystals. Advanced Materials (Deerfield Beach, Fla.). 23: 2191-4. PMID 21469219 DOI: 10.1002/Adma.201004739  0.391
2011 Kim SI, Ahn K, Yeon D, Hwang S, Kim H, Lee SM, Lee KH. Enhancement of Seebeck Coefficient in Bi$_{0.5}$Sb$_{1.5}$Te$_{3}$ with High-Density Tellurium Nanoinclusions Applied Physics Express. 4: 091801. DOI: 10.1143/Apex.4.091801  0.343
2011 Ahn K, Cho E, Rhyee J, Kim SI, Lee SM, Lee KH. Effect of cationic substitution on the thermoelectric properties of In4−xMxSe2.95 compounds (M = Na, Ca, Zn, Ga, Sn, Pb; x = 0.1) Applied Physics Letters. 99: 102110. DOI: 10.1063/1.3637053  0.379
2011 Han M, Ahn K, Kim H, Rhyee J, Kim S. Formation of Cu nanoparticles in layered Bi2Te3 and their effect on ZT enhancement Journal of Materials Chemistry. 21: 11365. DOI: 10.1039/C1Jm10163C  0.329
2010 Ahn K, Han MK, He J, Androulakis J, Ballikaya S, Uher C, Dravid VP, Kanatzidis MG. Exploring resonance levels and nanostructuring in the PbTe-CdTe system and enhancement of the thermoelectric figure of merit. Journal of the American Chemical Society. 132: 5227-35. PMID 20235578 DOI: 10.1021/Ja910762Q  0.427
2010 Rhyee J, Cho E, Ahn K, Lee KH, Lee SM. Thermoelectric properties of bipolar diffusion effect on In4Se3-XTex compounds Applied Physics Letters. 97: 152104. DOI: 10.1063/1.3493269  0.367
2010 Ahn K, Li CP, Uher C, Kanatzidis MG. Thermoelectric properties of the compounds AgPbmLaTe m+2 Chemistry of Materials. 22: 876-882. DOI: 10.1021/Cm901668H  0.35
2009 Ahn K, Han MK, Vermeulen D, Moses S, Uher C, Kanatzidis MG. The effect on thermoelectric properties of Cd substitution in PbTe Mrs Proceedings. 1166: 177-182. DOI: 10.1557/Proc-1166-N06-09  0.403
2009 Ahn K, Pecharsky VK, Gschneidner KA. The magnetothermal behavior of mixed-valence Eu3O4 Journal of Applied Physics. 106: 43918. DOI: 10.1063/1.3204662  0.526
2009 Ahn K, Li C, Uher C, Kanatzidis MG. Improvement in the thermoelectric figure of merit by La/Ag cosubstitution in PbTe Chemistry of Materials. 21: 1361-1367. DOI: 10.1021/Cm803437X  0.371
2009 Qian Z, Chumbley LS, Misra S, Miller G, Pecharsky VK, Gschneidner KA, Ahn K, Chernyshov AS, Singh NK. Electron microscopy examination of R5T4 alloys, where R = Ho, Yb and Gd, and T = Si, Ge, Ga and Sb Acta Materialia. 57: 3374-3381. DOI: 10.1016/J.Actamat.2009.03.044  0.643
2007 Ahn K, Kanatzidis MG. Optimization of High Thermoelectric Figure-of-Merit in p-type Ag1-x(Pb1-ySny)mSb1-zTem+2 Mrs Proceedings. 1044. DOI: 10.1557/Proc-1044-U04-08  0.381
2007 Ahn K, Pecharsky VK, Gschneidner KA. Phase relationships, and the structural, magnetic, and thermodynamic properties in the Sm 5 Si x Ge 4-x pseudobinary system Physical Review B. 76: 14415. DOI: 10.1103/Physrevb.76.014415  0.587
2006 Voyer CJ, Ryan DH, Ahn K, Gschneidner KA, Pecharsky VK. Valence and magnetic ordering in the Yb5SixGe4- x pseudobinary system Physical Review B. 73. DOI: 10.1103/Physrevb.73.174422  0.482
2005 Ahn K, Tsokol AO, Mozharivskyj Y, Gschneidner KA, Pecharsky VK. Phase relationships and structural, magnetic, and thermodynamic properties of the Yb5si4-Yb5Ge4 pseudobinary system Physical Review B. 72. DOI: 10.1103/Physrevb.72.054404  0.486
2005 Ahn K, Pecharsky AO, Gschneidner KA, Pecharsky VK. Preparation, heat capacity, magnetic properties, and the magnetocaloric effect of EuO Journal of Applied Physics. 97: 63901. DOI: 10.1063/1.1841463  0.495
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