ຓ ᩍ㸸ᩩ
(2014.10㹼2015.3),࿋ᬡ ຬ
(2015.4㹼2015.12)ඹྠ◊✲◊✲ဨ㸸⸨⍞ಖ
Ꮫ 㝔 ⏕㸸⚟᪩⣖୰ㄹྜྷ⏣⍞ᕼ ᑠᯘᖿᙪ Angga Hermawan Ꮫ 㒊 Ꮫ ⏕㸸እᕝᾏᑠᯇ⏣⣸ኸ
◊✲ᡤ◊✲⏕㸸 Rungchet Atchara, Naruemon Setthaya
≉ ู ◊ ✲ ⏕㸸 Prasitthikun Tuangphorn, Saijai Wanwisa
䝋䝣䝖Ꮫᛂ䛻䜘䜛䝉䝷䝭䝑䜽䝇䛾䝟䝜䝇䝁䝢䝑䜽䠄㝵ᒙⓗ䠅ᙧែไᚚ䛸⎔ቃㄪᶵ⬟䛾㧗ᗘⓎ⌧䛻䛴䛔䛶◊
✲䛧䛶䛚䜚䚸⎔ቃ㈇Ⲵ䛾ᑡ䛺䛔Ỉ䜔䜰䝹䝁䞊䝹➼䜢ᛂ⁐፹䛸䛩䜛䝋䝹䝪䝃䞊䝬䝹ᛂ䛻䜘䜛䝉䝷䝭䝑䜽䝇䛾 䝟䝜䝇䝁䝢䝑䜽ᙧែไᚚ䛸䛭䛾ᕤᏛⓗᛂ⏝䛻㛵䛩䜛◊✲䜢⾜䛳䛶䛔䜛䚹
䠍䠊ΰྜཎᏊ౯䝍䞁䜾䝇䝔䞁⣔ྜ≀䛾ᶵ⬟ᛶฟ㻌
┬㈨※䜔┬䜶䝛䝹䜼䞊䚸ᛌ㐺✵㛫〇➼䛾ほⅬ䛛䜙䚸ྍどග㏱᫂ᛶ䛻ඃ䜜䛯㉥እ⥺㐽ⶸᮦᩱ䛜ồ䜑䜙䜜 䛶䛔䜛䚹䝍䞁䜾䝇䝔䞁䝤䝻䞁䝈ᆺMxWO3 (䡔=0.33) 䛿䚸㐺ᗘ䛺⮬⏤㟁Ꮚᐦᗘ䜢᭷䛧䠈㉥እ⥺㐽ⶸᮦᩱ䞉㏱᫂ᑟ 㟁ᛶᮦᩱ➼䛸䛧䛶䛾ᛂ⏝䛜ᮇᚅ䛥䜜䜛䚹ᡃ䚻䛿䠈䜹䝹䝪䞁㓟䛸䜰䝹䝁䞊䝹䜢ᛂ⁐፹䛸䛩䜛᪂つ䝋䝹䝪䝃䞊䝬 䝹䝥䝻䝉䝇䜢㛤Ⓨ䛧䚸ศᩓᛶ䛻ඃ䜜䛯ΰྜཎᏊ౯䝍䞁䜾䝇䝔䞁䝤䝻䞁䝈MxWO3(M = Cs, K, Na) 䝘䝜⢏Ꮚ䛾
ྜᡂἲ䜢㛤Ⓨ䛩䜛䛸䛸䜒䛻䚸ྍどග㏱᫂ᛶ䛸㉥እ⥺㐽ⶸ⬟䛾ඃ䜜䛯ⷧ⭷䛾ྜᡂ䛻ᡂຌ䛧䚸ኴ㝧ග䛾⇕⥺䜢㐽 ⶸ䛧ᐊෆ ᗘୖ᪼䜢ᢚ䛘䜛䛣䛸䛜䛷䛝䜛䛣䛸䜢ᐇド䛧䛯䚹䜎䛯䚸䝘䝜⢏Ꮚ䛾⢏ᚄไᚚ䛻䜘䜚⒴⣽⬊䛻㑅ᢥⓗ䛻ྲྀ
䜚㎸䜎䛫䚸㉥እ⥺↷ᑕ䛻䜘䜚⒴⣽⬊䛾䜏䜢᪼ 䛥䛫Ṛ⁛䛥䛫䜛⒴䛾 ⇕⒪ἲ䜈䛾⏝䛜ྍ⬟䛷䛒䜛䛣䛸䜢ぢ ฟ䛧䛯䚹䛥䜙䛻䚸䝍䞁䜾䝇䝔䞁䝤䝻䞁䝈䛸䜾䝷䝣䜵䞁(rGO)䛸䛾」ྜ䛻䜘䜛≀⌮Ꮫ≉ᛶ䛾ྥୖ䛻䛴䛔䛶䜒᳨ウ䛧 䛯䚹Ꮫ㑏ඖἲ䛻䜘䜛䜾䝷䝣䜵䞁(rGO)䛿㓟⣲ᐁ⬟ᇶཬ䜃Ḟ㝗䜢ከ䛟᭷䛩䜛䛯䜑䚸ᑟ㟁⋡䛿䚸䜾䝷䝣䜵䞁ᮏ᮶䛾
್䜘䜚ప䛟䛺䜛䛣䛸䛜ከ䛔䚹䜾䝷䝣䜵䞁䛸ΰྜཎᏊ౯䝍䞁䜾䝇䝔䞁䝤䝻䞁䝈 M䡔WO3䛸䜢」ྜ䛧䛯ⷧ⭷䜢ྜᡂ䛧䛯 䛸䛣䜝䚸䝅䝘䞊䝆ຠᯝ䛻䜘䜚䜾䝷䝣䜵䞁䛚䜘䜃䝍䞁䜾䝇䝔䞁䝤䝻䞁䝈༢⊂䛾䜘䜚㟁Ẽᢠ䜢పୗ䠄ᑟ㟁ᛶ䜢ྥ
ୖ䠅䛷䛝䜛䛣䛸䜢ぢฟ䛧䛯䚹
㻞㻚㻌䝘䝜⢏Ꮚ䛾㧗ᗘศᩓཬ䜃㏱᫂ⷧ⭷䛾ㄪ〇㻌
⣸እ⥺㐽ⶸᛶ⬟䜢ᣢ䛴Ca䝗䞊䝥㓟䝉䝸䜴䝮䜔㉥እ⥺㐽ⶸ⬟䜢᭷䛩䜛䝍䞁䜾䝇䝔䞁㓟䝉䝅䜴䝮➼䛾ᶵ⬟ᛶ
ྥୖ䛥䛫䜛䛯䜑䚸㧗䛔ᶵᛶ⬟䜢ಖᣢ䛧䛴䛴ྍどග㏱᫂ᛶ䛻ඃ䜜䛯ⷧ⭷䛚䜘䜃ศᩓᾮ䜢㛤Ⓨ䛩䜛䛣䛸䛜ồ䜑䜙 䜜䛶䛔䜛䚹ᮏ◊✲䛷䛿䚸䝅䝷䞁䜹䝑䝥䝸䞁䜾䛻䜘䜛㓟≀䝘䝜⢏Ꮚ䛾จ㞟ไᚚཬ䜃㏱᫂ⷧ⭷䛾ㄪ〇䛻䛴䛔䛶
⣔⤫ⓗ䛻᳨ウ䛧䚸㓟≀䝘䝜⢏Ꮚ䜢㧗ศᩓ䛥䛫䜛ศᩓ䜔ῧຍ≀䛾✀㢮䚸ῧຍ㔞䛾᭱㐺䜢⾜䛳䛯䚹᭦䛻ྠ
ᵝ䛾ᡭἲ䜢ගゐ፹➼䛾䛾ᶵ⬟ᛶ䝘䝜⢏Ꮚ䜈㐺⏝䛩䜛䛣䛸䜢ᥦ䛧䚸ỗ⏝ᛶศᩓᾮ䛾ㄪ〇ᡭἲ䛾☜❧䜢┠
ᣦ䛧䚸䛭䛾᭷ຠᛶ䛻䛴䛔䛶᳨ド䛧䛯䚹
㻟㻚 䝬䜲䝹䝗䛺 ᗘ᮲௳䛻䛚䛡䜛❅≀䛾ྜᡂ
㔠ᒓ❅≀䛿䚸ᵝ䚻䛺᪂つ䛺ᶵ⬟ᛶ䛜ぢฟ䛥䜜┈䚻ὀ┠䛥䜜䛶䛔䜛䚹ᡃ䚻䛿䚸ᙧែ䛜ไᚚ䛥䜜䛯㔠ᒓ㓟
≀䜢ฟⓎཎᩱ䛸䛧䚸ẚ㍑ⓗ ᗘ䛾ప䛔 䛺ᛂ᮲௳䛷⢏Ꮚᙧែ䜔䝃䜲䝈䛾ไᚚ䛥䜜䛯㔠ᒓ❅≀䛾ྜᡂ ᮲௳䛾᥈⣴䜢⾜䛳䛶䛚䜚䚸䜰䝭䝗➼䜢⏝䛩䜛䛣䛸䛻䜘䛳䛶䚸䝬䜲䝹䝗䛺 ᗘ᮲௳䛷㔠ᒓ❅≀䛾⏕ᡂ䛜ྍ⬟
䛷䛒䜛䛣䛸䜢᳨ド䛧䛯䚹
㻠㻚㻌⎔ቃίගゐ፹ᶵ⬟䛾㧗ᗘ㻌
ඃ䜜䛯⎔ቃίᶵ⬟䜢᭷䛩䜛ගゐ፹䛾㛤Ⓨ䜢┠ᣦ䛧䚸」ྜ䜰䝙䜸䞁䝗䞊䝥༙ᑟయ䛾ྜᡂ䜢⾜䛔䚸䜹䞊䝪䞁 䝗䞊䝥㓟䝏䝍䞁䚸Nd-C 䝁䝗䞊䝥㓟䝏䝍䞁➼䚸ᩘከ䛟䛾ඃ䜜䛯ྍどගᛂ⟅ᛶගゐ፹䛾〇䛻ᡂຌ䛧䛯䚹䜎 䛯䚸ྍどගᛂ⟅ᛶගゐ፹䛸㉥እ⥺䜢ྍどග䛻ኚ䛷䛝䜛䜰䝑䝥䝁䞁䝞䞊䝆䝵䞁⺯ගᮦᩱ䛸䛾」ྜ䜢⾜䛔䚸ኴ 㝧䜶䝛䝹䜼䞊䛾⣙ 50%䜢༨䜑䜛㉥እ⥺䜢᭷ຠ䛻⏝䛷䛝䜛䝣䝹䝇䝨䜽䝖䝹ගᛂ⟅ᆺගゐ፹䝅䝇䝔䝮䛾〇䛻 ᡂຌ䛧䛯䚹䜎䛯䚸ྍどගᛂ⟅ᛶගゐ፹䛸㉥እ⥺㐽ⶸᮦᩱ䛸䛾」ྜ䛻䜘䜚䚸ගゐ፹ᶵ⬟䛸㉥እ㐽ⶸ≉ᛶ䜢ే
䛫ᣢ䛴䜘䛖䛺䝬䝹䝏ᶵ⬟ගゐ፹䛾ྜᡂ䛻ᡂຌ䛧䚸䝇䝬䞊䝖䜴䜱䞁䝗䜴ᮦᩱ䛸䛧䛶⏝䛧䚸⎔ቃίཬ䜃ኟᏘ䛾 ᐊෆ ᗘୖ᪼䜢㜵Ṇ䛷䛝䜛᪂ᶵ⬟ᘓᮦ䜈䛾ᛂ⏝䜢ᥦ䛩䜛䛸䛸䜒䛻䚸䝁䞁䝫䝆䝑䝖ᆺගゐ፹䝅䝇䝔䝮䛾タィᣦ 㔪䛾☜❧䜢┠ᣦ䛧䛯䚹
㻡㻚㻌⁐ᾮ䝥䝻䝉䝇䛻䜘䜛㓄ྥᛶ㓟ள㖄㓟ⷧ⭷䛾సᡂཬ䜃ᶵ⬟ᛶホ౯㻌 ITO ⷧ⭷䛾௦᭰≀㉁䛸䛧䛶䚸䜲䞁䝆䜴䝮䝣䝸䞊䛺㓟ள㖄
䛜ὀ┠䛥䜜䛶䛔䜛䚹ᡃ䚻䛿䚸⎔ቃ䛻ඃ䛧䛔⁐ᾮ䝥䝻䝉䝇䛻䜘 䛳䛶䚸㓟ள㖄ⷧ⭷䛾ㄪ〇䜢⾜䛔䚸㓟ள㖄✀⤖ᬗ䜢ྵ
䜐⁐ᾮ䜢ሬᕸ䛧䛯ᇶᯈ䜢ᛂ⁐ᾮ୰䛻ᾐₕ䛧ຍ⇕䛩䜛䛣䛸 䛷䚸(002) 㠃䛻㓄ྥ䛧䛯ᆒ୍䛺ⷧ⭷䛾ྜᡂ䛻ᡂຌ䛧䛯䚹ྜ
ᡂ䛧䛯ⷧ⭷䛿㧗䛔ྍどග㏱㐣⋡䚸ඃ䜜䛯ᑟ㟁ᛶ䛚䜘䜃ඃ
䜜䛯⣸እ⥺㐽ⶸຠᯝ䜢♧䛧䛯䚹
㻢㻚㻌㓟≀༙ᑟయ䝘䝜⢏Ꮚ䛾䜺䝇䝉䞁䝃䞊≉ᛶ㻌
⏘ᴗᢏ⾡䛾㧗ᗘ䛸ඹ䛻䚸䜺䝇䝉䞁䝃䞊䜈䛾ᮇᚅ䛜㧗䜎䛳䛶䛔䜛䚹ᡃ䚻䛿㓟䝇䝈䜔㓟ள㖄➼䛾㓟≀
༙ᑟయ䛾䜺䝇䝉䞁䝃䞊≉ᛶ䛻䛴䛔䛶ὀ┠䛧䚸ᵝ䚻䛺ᙧែ䛸䝃䜲䝈䜢᭷䛩䜛ᚤ⤖ᬗ䜢ྜᡂ䛧䚸᭦䛻 Pt➼䛾㈗㔠 ᒓ䜢ᢸᣢ䛥䛫䜛䛣䛸䛻䜘䛳䛶䚸䜰䝉䝖䞁ཬ䜃䝯䝍䝜䞊䝹➼䛾䜺䝇䛻ᑐ䛧䚸ඃ䜜䛯䝉䞁䝃䞊ᛂ⟅㏿ᗘ䛸㧗ឤᗘ䜢ᐇ
⌧䛧䛯䚹⢏Ꮚᙧែཬ䜃⤖ᬗ㠃ไᚚ䜢⾜䛔䚸䜺䝇䝉䞁䝃䞊≉ᛶ䛸䛾㛵㐃䛻䛴䛔䛶⣔⤫ⓗ䛺᳨ウ䜢⾜䛳䛶䛔䜛䚹
㻣㻚㻌䝋䝹䝪䝃䞊䝬䝹ᛂ䛻䜘䜛㔠ᒓ㓟≀䛾ᙧែไᚚ䛸ᶵ⬟ᛶホ౯㻌
䝋䝹䝪䝃䞊䝬䝹ᛂ䛻䜘䜚䚸ᙧែ䛾ไᚚ䛥䜜䛯㔠ᒓ㓟≀䛾䝘䝜⢏Ꮚཬ䜃䝬䜲䜽䝻⢏Ꮚ䜢ຠ⋡䜘䛟ྜᡂ䛷䛝 䜛ᡭἲ䜢㛤Ⓨ䛧䚸⌫≧䚸䝻䝑䝗≧䚸ᯈ≧䚸䝘䝜䝇䜽䝸䝳䞊䚸ⰼᘚ≧䛺䛹䝴䝙䞊䜽䛺ᙧែ䜢᭷䛩䜛㔠ᒓ㓟≀⢏Ꮚ 䛾≉␗䛺ᙧែ䛻ᇶ䛪䛟᪂ᶵ⬟䛻䛴䛔䛶᳨ウ䛧䛯䚹≉䛻䚸㓟ள㖄䛻䛴䛔䛶䛿䚸⌫≧䝘䝜⢏Ꮚ䚸ᫍᙧ䝘䝜⢏Ꮚ䚸 ᯈ≧䝭䜽䝻⢏Ꮚ䚸ᯈ≧䝭䜽䝻㞼ẕ/㓟ள㖄䝘䝜⢏Ꮚ」ྜయ䛺䛹䛾ྜᡂἲ䜢☜❧䛧䚸⣸እ⥺㐽ⶸᶵ⬟䚸䝋䝣䝖䝣 䜷䞊䜹䝇ຠᯝཬ䜃ඃ䜜䛯⏝ឤ䜢ే䛫䜒䛴䝬䝹䝏ᶵ⬟⢝ᩱ䜢ᐇ⌧䛧䛯䚹
࠙◊✲άືሗ࿌ࠚ ↓ᶵᮦᩱ〇ࣉࣟࢭࢫ◊✲ศ㔝
㸦2015. 1㹼2015. 12㸧ᩍ ᤵ㸸ᇉⰼ┾ே
ᩍ ᤵ㸸ຍ⸨ⱥᶞ
ຓ ᩍ㸸ᑠᯘு
Ꮫ≉ู◊✲ဨ3'㸸㔠▱្㸦㹼2015.3㸧
ཷ ク ◊ ✲ ဨ㸸Tzu-Yu Liu㸦2015.10㹼2015.11㸧
Ꮫ 㝔 ⏕㸸 ᑚCiro S. Quintans, ᮤᬂ᱓ཎᐶᏘ బ⸨㸪ᒣ⏣ಟᖹடᮧᑦᘯᆏ㒊ᾈᶞ
➉⏣ὒᖹ
Ꮫ 㒊 Ꮫ ⏕㸸㕥ᮌリ⥴㔛ᕤ⸨ె
◊✲ᡤ◊✲⏕㸸 ᑚ㸦2015.2㹼2015.3㸧
ᮏ◊✲ศ㔝䛷䛿䠈⎔ቃ䛻ㄪ䛧䛯↓ᶵᮦᩱྜᡂ䛾Ꮫ䝥䝻䝉䝇䛾㛤Ⓨ䛚䜘䜃᪂つᶵ⬟ᛶᮦᩱ᥈⣴䠈ᮦᩱ
䛾㧗ᶵ⬟䛻㛵䛩䜛◊✲άື䜢⾜䛳䛶䛔䜛䚹2015ᖺ䛾άືෆᐜ䛿䠈௨ୗ䛾䜘䛖䛻ᴫᣓ䛥䜜䜛䚹
㻌㓟䝏䝍䞁ከᙧ䛾⤖ᬗᡂ㛗ไᚚ
ᙜ◊✲ᐊ䛷䛿䛣䜜䜎䛷䛻䠈Ỉ⁐ᛶ䝏䝍䞁㘒య䛾Ỉ⇕ฎ⌮䛻䛚
䛔䛶䠈Į-䝠䝗䝻䜻䝅㓟䜔䜰䝹䝁䞊䝹䜢ῧຍ≀䛸䛧䛶⏝䛔䜛䛣䛸䛷䠈
rutileᆺ㓟䝏䝍䞁⤖ᬗ䛾c㍈᪉ྥ䜈䛾␗᪉ᡂ㛗䛜ಁ㐍䛥䜜䜛䛣
䛸䜢᫂䜙䛛䛻䛧䛶䛔䜛䚹䛣䛾䛣䛸䜢ཷ䛡䠈䜋䛛䛾㓟䝏䝍䞁ከᙧ䠈 䛸䛟䛻ྜᡂ䛜ᅔ㞴䛷䛒䜛䛸䛥䜜䜛brookiteᆺ䜔TiO2(B)䛻ᑐ䛧䛶䛾
⤖ᬗᡂ㛗ไᚚ䜢ヨ䜏䛯䚹TiO2(B)䛾ྜᡂ䛷䛿䠈ῧຍ≀䛾᭷↓䛻
䛛䛛䜟䜙䛪䠈⢏ᚄ䛜10 nm⛬ᗘ䛾⢏Ꮚ䛜ᯒฟ䛧䛯䚹୍᪉䛷䠈brookiteᆺ䛻䛚䛔䛶䛿䠈䜾䝸䝅䞁䜢ῧຍ䛧䛯䛸䛝䛻 ᚤ⢏Ꮚ䛩䜛ഴྥ䛜☜ㄆ䛥䜜䛯䚹ຍ䛘䛶䝢䝁䝸䞁㓟䜢⏝䛔䛯䛸䛝䛻䛿䠈ῧຍ≀䜢ຍ䛘䛶䛔䛺䛔䛸䛝䛸ྠᵝ䛾Წ
≧⢏Ꮚ䛾ᯒฟ䛜ほᐹ䛥䜜䛯䛜䠈ඛ➃䛾ᙧ≧䛻ኚ䛜ぢ䜙䜜䛯䚹௨ୖ䛾䜘䛖䛻ྜᡂ䛜ᅔ㞴䛷䛒䜛䛸䛥䜜䜛㓟
䝏䝍䞁ከᙧ䛻ᑐ䛧䛶䜒䠈⤖ᬗᡂ㛗ไᚚ䛻୍ᐃ䛾⤖ᯝ䛜ᚓ䜙䜜䛯䚹
㻌Nb䝗䞊䝥brookiteᆺ㓟䝏䝍䞁䛾ྜᡂ䛸䛭䛾㟁Ẽఏᑟᛶホ౯
Nb䜔Ta䜢䝗䞊䝥䛧䛯anataseᆺ㓟䝏䝍䞁䛜䠈Sn䝗䞊䝥㓟䜲䞁䝆䜴䝮䠄ITO䠅䛻༉ᩛ䛩䜛㏱᫂ᑟ㟁ᛶ䜢♧
䛩䛣䛸䛜ሗ࿌䛥䜜䛶䛔䜛䚹୍᪉䛷䠈brookite ᆺ㓟䝏䝍䞁䜈䛾 Nb 䜔 Ta 䝗䞊䝥䛚䜘䜃䛭䛾≉ᛶ䛻䛴䛔䛶䛿䠈
brookiteᆺ㓟䝏䝍䞁䛾ྜᡂ䛾ᅔ㞴䛥䛛䜙ヲ⣽䛜ሗ࿌䛥䜜䛶䛔䛺䛔䚹䛭䛣䛷䠈Nb䜢䝗䞊䝥䛧䛯brookiteᆺ㓟
䝏䝍䞁䛾ྜᡂ䛸䛭䛾ホ౯䜢ヨ䜏䛯䚹Ỉ⁐ᛶ䝏䝍䞁䠉䝙䜸䝤㘒య䛾Ỉ⇕ฎ⌮䛻䜘䜚䠈᭱䛷7 mol%䛾Nb䜢䝗䞊
䝥䛧䛯brookiteᆺ㓟䝏䝍䞁䜢ྜᡂ䛩䜛䛣䛸䛜ྍ⬟䛷䛒䛳䛯䚹䜎䛯䠈Nb䛾䝗䞊䝥䛻䜘䜚䠈㓟䝏䝍䞁䛻䜻䝱䝸䜰䛜
䝗䞊䝥䛥䜜䠈䜻䝱䝸䜰⃰ᗘ䛿Nb 䛻ẚ䛧䛶䛝䛟䛺䜛䛣䛸䛜♧၀䛥䜜䛯䚹ຍ䛘䛶䠈ྜᡂ䛧䛯brookiteᆺ㓟䝏䝍 䞁䛜䠈ྠἲ䛷స〇䛧䛯rutileᆺ㓟䝏䝍䞁䛸ྠ➼䛾㟁Ẽఏᑟᛶ䜢♧䛩䛣䛸䜢᫂䜙䛛䛻䛧䛯䚹
㻟㻚㻌䃐-Ca2SiO4䛾Ᏻᐃ䛸䛭䛾Ⓨග≉ᛶ㻌
ᖺ䜎䛷䛻䠈Eu2+䜢㈿ά䛧䛯D’L┦䛾(Ca,Sr)2SiO4䛚䜘䜃Ca2–xSrxSiO4䛜㟷Ⰽගບ㉳䛷㉥ⰍⓎග䛩䜛≉ᚩⓗ
䛺㓟≀⺯ගయ䛷䛒䜛䛣䛸䜢ぢฟ䛧䛶䛝䛯䚹Ca2SiO4䛻䛿D,D’H,D’L,E, J┦䛾5✀㢮䛾⤖ᬗ┦䛜Ꮡᅾ䛩䜛䛜䠈
ྍ㏫┦㌿⛣䛩䜛㧗 ┦䛷䛒䜛D┦䛿ᐊ 䛷ᚓ䜛䛣䛸䛜㞴䛧䛔䛯䜑䠈䛭䛾Ⓨග≉ᛶ䛿ㄪ䜉䜙䜜䛶䛔䛺䛛䛳䛯䚹
ᖺ䠈᭦䛺䜛≉ᛶไᚚ䜢┠ᣦ䛧䛶Ca2SiO4䛻ᑐ䛧䛶K䛸La䜢ඹ⨨䜢᳨ウ䛧䛯䛸䛣䜝䠈㧗 䛛䜙䛾䜽䜶䞁䝏䜢䛧 䛺䛟䛶䜒D┦䛾Ca2–2xKxLaxSiO4䛜ᙧᡂ䛥䜜䜛䛣䛸䜢ぢฟ䛧䛯䚹ඹ⨨㔞䛜ᑠ䛥䛔䛸䛝䛻䛿䠈D┦䛸D’L┦䛾ΰྜ┦
䛷䛒䛳䛯䛜䠈x= 0.3䛾⤌ᡂ䛷┦⣧ᗘ䛾㧗䛔D┦䜢ᚓ䜙䜜䜛䛣䛸䛻ᡂຌ䛧䛯䚹Ca2–2xKxLaxSiO4䛻Ce3+䜢㈿ά䛩䜛 䛸䠈350nm䛷䛾ບ㉳䛻䜘䜚428 nm䛻ᴟ䜢䜒䛴Ⓨග䜢♧䛩䛣䛸䜢᫂䜙䛛䛻䛧䛯䚹
Brookiteᆺ㓟䝏䝍䞁䛾TEM┿
㻠㻚Ca3Y(AlO)3(BO3)4䜢䝩䝇䝖䛸䛩䜛ⓑⰍⓎග⺯ගయ䛾㛤Ⓨ
LED䝏䝑䝥䛸⺯ගయ䛻䜘䜚ᵓᡂ䛥䜜䜛ⓑⰍLED䛻䛚䛔䛶」
ᩘ䛾⺯ගయ䜢⤌䜏㎸䜐䛣䛸䛿䠈⺯ගయ㛫䛷䛾Ⓨග䛾྾
䜔␗䛺䜛 ᗘ≉ᛶ䛻䜘䜛ⓎගⰍኚ䛺䛹䝕䝯䝸䝑䝖䛜₯ᅾ䛧䛶 䛔䜛䚹୍✀㢮䛾⺯ගయ䛻䜘䜚ᨃఝⓑⰍග䜢ᐇ⌧䛩䜛䛣䛸䜢┠
ᣦ䛧䛶䠈䝬䝹䝏㈿ά⺯ගయ䛾㛤Ⓨ䜢᳨ウ䛧䛯䚹䛭䛾⤖ᯝ䠈 Ca3Y(AlO)3(BO3)4䜢䝩䝇䝖䛻⏝䛔䛶 Ce3+, Tb3+, Mn2+䜢ඹ㈿
ά䛩䜛䛣䛸䛷䠈㏆⣸እບ㉳䛻䜘䜛ᨃఝⓑⰍⓎග䜢ᚓ䜛䛣䛸䛻 ᡂຌ䛧䛯䚹ᨃఝⓑⰍⓎග䛿䠈Ce3+䛻䜘䜛㟷䠈Tb3+䛻䜘䜛⥳Ⰽ䠈 Mn2+䛻䜘䜛㉥ⰍⓎග䛻䜘䜚ᙧᡂ䛥䜜䛶䛔䜛䛣䛸䜢✺䛝Ṇ䜑䛯䚹
㻌
㻡㻚㻌Mn㈿ά䝏䝍䞁⣔㓟≀⺯ගయ䛾㛤Ⓨ
ᖺ䠈La2MgTiO6:Mn4+䛚䜘䜃 LaZnTiO6:Mn4+䛜ᐊ 䛻 䛚䛔䛶㉥ࠥ㏆㉥እ㡿ᇦ䛻ᙉ䛔Ⓨග䜢♧䛩䛣䛸䜢Ⓨぢ䛧䛯䚹
ᖺ䛿䠈La2MgTiO6:Mn4+䛾Ⓨග≉ᛶ䜢᭦䛻ヲ䛧䛟ㄪ䜉䜛 䛣䛸䜢┠ᣦ䛧䛶䠈ప Ⓨග ᐃ䛺䜙䜃䛻DFTἲ䛻䜘䜛䝞䞁 䝗ᵓ㐀ィ⟬䜢⾜䛳䛯䚹䛭䛾⤖ᯝ䠈La2MgTiO6:Mn4+䛾ᾘග ᗘ䛜260K䛷䛒䜛䛾䛻ᑐ䛧䛶SrTiO3:Mn4+䛾䛭䜜䛿43K 䛷䛒䜛䛣䛸䛜ศ䛛䛳䛯䚹䝞䞁䝗ᵓ㐀ィ⟬䛛䜙䠈Mn䛾t2g㌶㐨 䛜䠈La2MgTiO6:Mn4+䛷䛿䝞䞁䝗䜼䝱䝑䝥ෆ䛻⨨䛩䜛䛾
䛻ᑐ䛧䛶䠈SrTiO3:Mn4+䛷䛿䠈౯㟁Ꮚᖏ୰䛻ᇙ䜒䜜䛶䛔䜛䛣䛸䛜᫂䜙䛛䛻䛺䛳䛯䚹௨ୖ䛾⤖ᯝ䛛䜙䠈Mn 䛾 t2g㌶ 㐨䛸౯㟁Ꮚᖏ䛜㔜䛺䜙䛺䛔䛣䛸䛜ᙉⓎග䛺Mn4+㈿ά⺯ගయ䜢㛤Ⓨ䛩䜛ୖ䛷䠈㔜せ䛷䛒䜛䛸䛔䛖▱ぢ䜢ᚓ䛯䚹
㻢㻚㻌䝨䝻䝤䝇䜹䜲䝖ᆺ㓟❅≀ගゐ፹䛾䝞䞁䝗䝫䝔䞁䝅䝱䝹ไᚚ㻌
௨๓䠈LaTaON2䛸NaTaO3䛾ᅛ⁐య䠄LNTON䠅䜢ᙧᡂ䛩䜛䛸䠈౯㟁Ꮚᖏ䝫䝔䞁䝅䝱䝹䛜LaTaON2䛻ẚ䜉䛶ṇ
ഃ䛻䝅䝣䝖䛧Ỉ䛾㓟⬟䛜Ⓨ⌧䛩䜛䛣䛸䜢ぢฟ䛧䛯䚹ᖺ䛿䠈Ỉ䛾㓟䛻ᑐ䛩䜛㧗άᛶ䜢┠ᣦ䛧䛶LaTaON2 䛸SrTiO3䛾ᅛ⁐య䠄LSTTON䠅䛾ྜᡂ䜢⾜䛔䠈
䛭䛾䝞䞁䝗䝫䝔䞁䝅䝱䝹䛺䜙䜃䛻ගゐ፹≉ᛶ 䜢 ㄪ ᰝ 䛧 䛯 䚹 䛭 䛾 ⤖ ᯝ 䠈LSTTON 䛷 䛿
LNTON 䛻ẚ䜉䛶䝞䞁䝗䜼䝱䝑䝥䛾ᣑ䛜ᢚ
ไ䛥䜜䛶䛔䜛䛻䜒䛛䛛䜟䜙䛪౯㟁Ꮚᖏ䛜䜘䜚 ṇഃ䛻䝅䝣䝖䛩䜛䛣䛸䠈䛺䜙䜃䛻౯㟁Ꮚᖏ䛾䝅 䝣䝖䛻క䛔㓟⣲⏕ᡂάᛶ䛜ྥୖ䛩䜛䛣䛸䜢✺
䛝Ṇ䜑䛯䚹ᚋ䠈㓟❅≀䛾౯㟁Ꮚᖏ䝫䝔䞁 䝅䝱䝹ไᚚ䜢ά⏝䛧䛶䠈䛥䜙䛻㧗άᛶ䛺㓟❅
≀ගゐ፹䛾ᵓ⠏䛜ᮇᚅ䛥䜜䜛䚹
㻌 La2MgTiO6:Mn4+䛚䜘䜃SrTiO3:Mn4+䛾䝞䞁䝗ᵓ㐀
㻌
LSTTON䛚䜘䜃LNTON䛾ගゐ፹άᛶ䛸Ỉ䛾㓟䛻ᑐ䛩䜛
䝗䝷䜲䝡䞁䜾䝣䜷䞊䝇
㻌 Ca3Y(AlO)3(BO3)4:Ce,Tb,Mn䛾ບ㉳Ⓨග䝇䝨䜽䝖䝹
࠙◊✲άືሗ࿌ࠚ ࣮࣋ࢫ࣓ࢱࣝ◊✲ࢫࢸ࣮ࢩࣙࣥ㻌
䠄2015䠊1䡚2015䠊12䠅㻌ᇶ ᖿ ◊ ✲ ဨ㻌 ᩍ ᤵ䠄ව䠅㻦㻌 ᮧ㻌 ಙஓ 䠄ᇶ┙⣲ᮦ䝥䝻䝉䝑䝅䞁䜾◊✲ศ㔝䠅 㻌 ᩍ ᤵ䠄ව䠅㻦㻌 ᰘ⏣㻌 ᝋ㑻 䠄㔠ᒓ㈨※ᚠ⎔䝅䝇䝔䝮◊✲ศ㔝䠅 㻌 ᩍ ᤵ䠄ව䠅㻦㻌 ᇣୖ㻌 ὒ 䠄⎔ቃ㐺ྜ⣲ᮦ䝥䝻䝉䝇◊✲ศ㔝䠅 㻌 ᩍ ᤵ䠄ව䠅㻦㻌 ᰘ⏣㻌 ᾈᖾ 䠄ᮦᩱศ㞳䝥䝻䝉䝇◊✲ศ㔝䠅 㻌
ᩍᤵ䠄ව䠅㻦㻌 ᳜⏣㻌 䠄ᇶ┙⣲ᮦ䝥䝻䝉䝑䝅䞁䜾◊✲ศ㔝䠅 㻌
ຓ ᩍ䠄ව䠅㻦㻌 ᒸ㻌 ఙὒ 䠄⎔ቃ㐺ྜ⣲ᮦ䝥䝻䝉䝇◊✲ศ㔝䠅 㻌
ຓ ᩍ䠄ව䠅㻦㻌 㣤ሯ㻌 ῟ 䠄㔠ᒓ㈨※ᚠ⎔䝅䝇䝔䝮◊✲ศ㔝䠅 㻌
ຓ ᩍ䠄ව䠅㻦㻌 㔠㻌 ᐉ୰ 䠄ᇶ┙⣲ᮦ䝥䝻䝉䝑䝅䞁䜾◊✲ศ㔝䠅㻌
ຓ ᩍ䠄ව䠅㻦㻌 ຓỌ㻌 ኊᖹ 䠄ᮦᩱศ㞳䝥䝻䝉䝇◊✲ศ㔝䠅㻌
ຓ ᩍ䠄ව䠅㻦㻌 ᕝす㻌 ဏᏊ 䠄ᮦᩱศ㞳䝥䝻䝉䝇◊✲ศ㔝䠅㻌
ᡤෆ༠ຊ◊✲ဨ㻌 ᩍ ᤵ䠄ව䠅㻦㻌 ⚟ᒣ㻌 ༤அ 䠄㧗 ᮦᩱ≀⌮Ꮫ◊✲ศ㔝䠅 㻌 ᩍ ᤵ䠄ව䠅㻦㻌 㕥ᮌ㻌 ⱱ 䠄ᶵ⬟ᮦᩱᚤ⣽ไᚚ◊✲ศ㔝䠅㻌
ᩍ ᤵ䠄ව䠅㻦㻌 ㇂㻌 ༤ྖ 䠄ィ⟬ᮦᩱ⇕ຊᏛ◊✲ศ㔝䠅㻌
ᩍ ᤵ䠄ව䠅㻦㻌 ຍ⣡㻌 ⣧ஓ 䠄ᶵ⬟ᛶ⢊య䝥䝻䝉䝇◊✲ศ㔝䠅㻌
ᩍ ᤵ䠄ව䠅㻦㻌 బ⸨㻌 ಟᙲ 䠄 䜶䝛䝹䜼䞊䝅䝇䝔䝮 ◊✲ศ㔝䠅㻌
ᩍᤵ䠄ව䠅㻦㻌 ୕ᮧ㻌 ⪔ྖ 䠄 ィ⟬ᮦᩱ⇕ຊᏛ◊✲ศ㔝 䠅 㻌
ᩍᤵ䠄ව䠅㻦㻌 ⠛⏣㻌 ᘯ㐀 䠄ᶵ⬟ᮦᩱᚤ⣽ไᚚ◊✲ศ㔝䠅㻌
ᩍᤵ䠄ව䠅㻦㻌 ሯ㻌 ㄔ 䠄䠄㧗 ᮦᩱ≀⌮Ꮫ◊✲ศ㔝䠅㻌
ᩍᤵ䠄ව䠅㻦㻌 ᱒ᓥ㻌 㝧 䠄 䜶䝛䝹䜼䞊䝅䝇䝔䝮 ◊✲ศ㔝䠅㻌
ຓ ᩍ䠄ව䠅㻦㻌 ᡴ㉺㻌 㞞ோ 䠄ィ⟬ᮦᩱ⇕ຊᏛ◊✲ศ㔝䠅㻌
ຓ ᩍ䠄ව䠅㻦㻌 ⸨ᯞ㻌 ಇ 䠄ᶵ⬟ᮦᩱᚤ⣽ไᚚ◊✲ศ㔝䠅㻌
ຓ ᩍ䠄ව䠅㻦㻌 Ᏻ㐩㻌 ṇⰾ 䠄㧗 ᮦᩱ≀⌮Ꮫ◊✲ศ㔝䠅㻌
ຓ ᩍ䠄ව䠅㻦 ▼ཎ ┿࿃ 䠄ᶵ⬟ᛶ⢊య䝥䝻䝉䝇◊✲ศ㔝䠅
ຓ ᩍ䠄ව䠅㻦㻌 ⛅ᒣ㍜ 䠄 䜶䝛䝹䜼䞊䝅䝇䝔䝮 ◊✲ศ㔝䠅 㻌 Ꮫෆ༠ຊ◊✲ဨ㻌 ᩍ ᤵ䠄ව䠅㻦㻌 ⴱす㻌 ᰤ㍤ 䠄⎔ቃ⛉Ꮫ◊✲⛉⎔ቃ⛉Ꮫᑓᨷ䠅㻌
ᩍ ᤵ䠄ව䠅㻦㻌 㛗ᆏ㻌 ᚭஓ 䠄ᕤᏛ◊✲⛉㔠ᒓ䝣䝻䞁䝔䜱䜰ᕤᏛᑓᨷ䠅㻌
ᩍᤵ䠄ව䠅㻦㻌 ୕ᮌ㻌 ㈗༤ 䠄ᕤᏛ◊✲⛉㔠ᒓ䝣䝻䞁䝔䜱䜰ᕤᏛᑓᨷ䠅㻌
ᩍᤵ䠄ව䠅㻦㻌 ᮧୖ㻌 ኴ୍ 䠄⎔ቃ⛉Ꮫ◊✲⛉⎔ቃ⛉Ꮫᑓᨷ䠅 㻌
ᮏ◊✲䝇䝔䞊䝅䝵䞁䛷䛿䠈㕲㗰䠈㖡䛺䛹䛾ᇶ♏㔠ᒓ䠄䝧䞊䝇䝯䝍䝹䠅䛾⢭㘐䞉จᅛ䠈ཬ䜃䠈⎔ቃ䝸䝃䜲䜽䝹䛻㛵 䛩䜛㔜せㄢ㢟䜢ᑐ㇟䛸䛧䠈᪂䛧䛔〇㐀䝥䝻䝉䝇䠈ᮦᩱ≉ᛶ䠈⎔ቃㄪᢏ⾡䜢㛤Ⓨ䛩䜛䛯䜑䛾ᇶ┙ⓗ䛺◊✲䜢
⾜䛳䛶䛔䜛䠊䜎䛯ᅜෆእ䛾Ꮫ䠈◊✲ᶵ㛵䠈ᴗ䛸䛾ᐦ᥋䛺ὶ䞉ඹྠ◊✲䜢᥎㐍䛧䠈ᡃ䛜ᅜ䛾䜏䛺䜙䛪䠈ୡ
⏺䛾ᣐⅬ䛸䛧䛶䛭䛾ᶵ⬟䜢ᯝ䛯䛩䛣䛸䜢┠ᣦ䛧䛶䛔䜛䠊ᖺ䛾◊✲άື䛸䛧䛶䛿䠈௨ୗ䛾䜘䛖䛻ᴫᣓ䛥䜜䜛䠊㻌 㻌