ᮏ◊✲ศ㔝࡛ࡣ㸪⎔ቃㄪࡋࡓ↓ᶵᮦᩱࡢᏛࣉࣟࢭࢫ࠾ࡼࡧ᪂つᶵ⬟ᛶᮦᩱ᥈⣴㛵ࡍࡿ
◊✲άືࢆ⾜ࡗ࡚࠸ࡿࠋ ᖺࡢ◊✲άືࡋ࡚ࡣ㸪௨ୗࡢࡼ࠺ᴫᣓࡉࢀࡿࠋ 㻌
ከඖ⣲ࢆྵ᭷ࡍࡿ᪂つ◲≀⺯ගయࡢྜᡂ
㻌 䛣䜜䜎䛷ሗ࿌䛾䛺䛔䜰䝹䜹䝸ᅵ㢮㔠ᒓ䜢✀㢮௨ୖྠ䛻ྵ䜐 㻱㼡㻞㻗㈿ά 㻹㻞㻿㼕㻿㻠㻦㻌 㻔㻹㻦㻯㼍㻘㻿㼞㻘㻮㼍㻕䛾ྜᡂ䜢ヨ䜏䛯⤖ᯝ䠈ᖺᗘ䛻ሗ࿌䛧 䛯㻦㻱㼡㻞㻗㈿ά 㻯㼍㻮㼍㻿㼕㻿㻠 䛻⥆䛝䠈༢ᩳᬗ⣔䛾᪂つ⺯ගయ 㻱㼡㻞㻗㈿ά 㻯㼍㻿㼞㻿㼕㻿㻠䛾༢┦ྜᡂ䛻ᡂຌ䛧䛯䚹᪂つ⺯ගయ䛿 㻟㻢㻜㼚㼙㻙㻡㻝㻜㼚㼙䛾ᗈ䛔
⠊ᅖ䛷ບ㉳䛥䜜䜛ྍどගᛂ⟅ᆺ䛾᪂つ㯤ⰍⓎග⺯ගయ䛷䛒䛳䛯䚹䛥 䜙䛻䠈㻱㼡㻞㻗㈿ά 㻹㻞㻿㼕㻿㻠䛾⤌ᡂ䜢ኚ䛥䛫䜛䛣䛸䛷䠈ⓎගⰍ䜢㟷Ⰽ䡚ᶳ Ⰽ䛻ㄪᩚ䛷䛝䛯䚹㻌
㻌
᪂つ⤌ᡂࢆ᭷ࡍࡿ◲≀⺯ගయࡢ᥈⣴
Sr ⣔䝏䜸䝅䝸䜿䞊䝖⺯ගయ䛿᪤▱≀㉁䛸䛧䛶Eu2+㈿άSr2SiS4䛜Ꮡᅾ䛩䜛䛜䚸䛭䜜௨እ䛾⤌ᡂ䜢䜒䛴 Sr
⣔䝏䜸䝅䝸䜿䞊䝖䛿ศ䛻ㄪᰝ䛥䜜䛶䛔䛺䛔䚹ᮏ◊✲䛷䛿⁐ᾮἲཬ䜃ᅛ┦ἲ䜢⤌䜏ྜ䜟䛫䛯」ྜᏛⓗᡭἲ
䛻䜘䜚䚸Sr:Si:S 䛾⤌ᡂ䜢㧗ᗘ䛻ไᚚ䛧䚸᪂つ⤌ᡂ䛾Sr ⣔䝏䜸䝅䝸䜿䞊䝖䜢᥈⣴䛧䛯䚹䛭䛾⤖ᯝ䚸䜿䜲⣲䝸䝑䝏ഃ
⤌ᡂ㡿ᇦ䛻Eu2+㈿άSr2SiS4䛾㯤⥳ⰍⓎග䛸䛿␗䛺䜛㟷⥳Ⰽ䛾Ⓨග䜢᭷䛩䜛᪂つSr⣔䝏䜸䝅䝸䜿䞊䝖䛜ྜᡂ 䛷䛝䛯䚹
㻌
ᕼᅵ㢮ඹ㈿άࡼࡿ◲≀⺯ගయࡢⓎග≉ᛶࡢᙳ㡪
㻌ᖺᗘⓎぢࡋࡓ᪂つ㉥Ⰽ◲≀⺯ගయBa1.59Sr0.4ZnS3:0.01Eu2+ࡢⓎග≉ᛶཬࡧ⤖ᬗᵓ㐀ࡘ࠸࡚ࡉ
ࡽ᳨ウࡋࡓࠋⓎගᙉᗘࡣEu2+/Ce3+ඹ㈿άࡼࡾቑࡋࠊBa1.58Sr0.4ZnS3:0.01Eu2+,0.01Ce3+ࡣᕷ㈍ࡉࢀ࡚
࠸ࡿYAGࡢ80 %ࡢⓎගᙉᗘࢆ᭷ࡋ࡚࠸ࡓࠋࡉࡽࠊBaࢧࢺࡢSr⨨⋡ࡀ10%௨ୖࡢࠊ⤖ᬗᵓ 㐀ࡀBa2ZnS3ࢱࣉࡽ Ba2MnS3ࢱࣉ┦㌿⛣ࡍࡿඹⓎගᙉᗘࡣቑࡍࡿࡀศࡗࡓࠋ
㻌
ࢩࣜ࢝ࢥ࣏ࣥࢪࢵࢺࡼࡿ⺯ගయࡢⓎගᙉᗘቑᙉຠᯝ
㻌 ᙜ◊✲ᐊ䛷㛤Ⓨ䛧䛯Ỉ⁐ᛶ䝅䝸䝁䞁ྜ≀䛾ᛂ⏝䜢Ⓨᒎ䛥䛫䜛䛯䜑䛻䠈䝅䝸䜹䛸 㻿㼞 ⣔䝏䜸䜺䝺䞊䝖⺯ග Eu2+㈿ά(Ca,Sr,Ba)2SiS4䛾ⓎගⰍ
(䃚ex=365nm)
య䛸䛾䝁䞁䝫䝆䝑䝖䜢ヨ䜏䛯䚹ྜᡂ䛧䛯⺯ගయ䛿䝅䝸䜹䛸 㻿㼞㻝㻚㻤㻳㼍㻞㻿㻠㻦㻜㻚㻞㻱㼡㻞㻗䛾䝁䞁䝫䝆䝑䝖䜢ᙧᡂ䛧䠈Ⓨගᙉᗘ 䛿 㻿㼞㻝㻚㻤㻳㼍㻞㻿㻠㻦㻜㻚㻞㻱㼡㻞㻗༢⊂䛾⺯ගయ䜘䜚䜒 㻞㻚㻟 ಸ䛾ᙉⓎග䜢᭷䛧䛶䛔䛯䚹ᮏ◊✲䛾⤖ᯝ䛿䠈䝅䝸䜹䝁䞁䝫䝆䝑䝖䜢 ᙧᡂ䛩䜛䛣䛸䛻䜘䜚ᙉⓎග䛾⺯ගయ䜢ྜᡂ䛷䛝䜛ྍ⬟ᛶ䜢♧၀䛧䛶䛔䜛䚹㻌
Ỉ⁐ᛶࢣ⣲ྜ≀ࢆࡗࡓ㘒య㔜ྜ୪ิྜᡂἲ࡛ࡢ<&H7E6L2ࡢ⥳ⰍཬࡧⓑⰍⓎගࡢ᭱㐺
⤌ᡂࡢỴᐃ
㻌 㘒య㔜ྜ୪ิྜᡂἲ䛿㎿㏿≀㉁᥈⣴ἲ䛷䛒䜛䛜䠈Ỉ⁐ᛶཎᩱ䛜ᚲせ䛺䛯䜑䜿䜲⣲⣔䛻䛘䛺䛛䛳䛯䚹 Ỉ⁐ᛶ䜿䜲⣲ྜ≀㻔㼃㻿㻿㻕䛾㛤Ⓨ䛻䜘䛳䛶䜿䜲⣲⣔䜈䛾ᒎ㛤䛜ฟ᮶䜛䜘䛖䛻䛺䛳䛯䚹䛣䜜䜢䛳䛶
㻔㼅㻘㻯㼑㻘㼀㼎㻕㻞㻿㼕㻻㻡䛾⥳Ⰽ䠈ⓑⰍⓎග䛾᭱㐺್䜢䛭䜜䛮䜜㻔㼅㻜㻚㻤㻣㻜㻯㼑㻜㻚㻜㻝㻡㼀㼎㻜㻚㻝㻝㻡㻕㻞㻿㼕㻻㻡䠈㻔㼅㻜㻚㻥㻢㻡㻯㼑㻜㻚㻜㻜㻡㼀㼎㻜㻚㻜㻟㻜㻕㻞㻿㼕㻻㻡䛸ྠ
䛻Ỵᐃ䛩䜛䛜ฟ᮶䛯䚹㼃㻿㻿䛻䜘䛳䛶䜿䜲⣲⣔䛷䛾㎿㏿≀㉁᥈⣴䜈䛾㐨䛜㛤䛛䜜䛯䚹㻌 㻌
Ỉ⁐ᛶࢣ⣲ྜ≀ࢆࡗࡓ㘒య㔜ྜ୪ิྜᡂἲ࡛ࡢ=Q0Q6L2ࡢ⥳ⰍⓎගࡢ᭱㐺⤌ᡂཬࡧ᭱
㐺⇕ฎ⌮ ᗘࡢỴᐃ
㻌 㻔㼆㼚㻘㻹㼚㻕㻞㻿㼕㻻㻠䛿䝥䝷䝈䝬⏬㠃⏝䛾⥳Ⰽ⺯ගయ䛷䛒䜛䚹㼃㻿㻿䜢䛳䛯㘒య㔜ྜ୪ิྜᡂἲ䜢䛳䛶 㻔㼆㼚㻘㻹㼚㻕㻞㻿㼕㻻㻠䛾᭱㐺⤌ᡂ䜢㻔㼆㼚㻜㻚㻥㻤㻹㼚㻜㻚㻜㻞㻕㻞㻿㼕㻻㻠䠈᭱㐺⇕ฎ⌮ ᗘ䜢㻝㻟㻜㻜䉝䛸㎿㏿䛻Ỵᐃฟ᮶䛯䚹䛣䛾䜘䛖䛻᭱㐺
䛧䛯ヨᩱ䛿䠈ᚑ᮶䛾ᅛ┦ᛂἲ䛷ྜᡂ䛧䛯ヨᩱ䛻ẚ䜉䛶㻞ಸ䛾Ⓨගᙉᗘ䜢♧䛧䛯䚹㘒య㔜ྜ୪ิྜᡂἲ䛜 䝉䝷䝭䝑䜽䝇䛾⤌ᡂ䠈ྜᡂ᮲௳Ỵᐃ䛻᭷ຠ䛷䛒䜛䛜䜘䜚☜䛛䛺䜒䛾䛸ᡂ䛳䛯䚹㻌
㻌
㘒య㔜ྜ୪ิྜᡂἲࢆࡗࡓ0J&D6U%D=Q7L=U6L6Q93⣔㓟≀࡛ࡢ(X㑏ඖẕయ ࡢ᥈⣴
㻌 㻱㼡㻞㻗䛿ᙉ䛔Ⓨග䜢♧䛩䛜䠈䜘䜚Ᏻᐃ䛺㻱㼡㻟㻗䜢㑏ඖ䛧䛺䛟䛶䛿䛺䜙䛺䛔䚹䛣䜜䛿ẕయ䛻䜘䛳䛶ಁ㐍䛥䜜䛭䛾
ຠᯝ䛾ᙉ䛔䜒䛾䛿㑏ඖᛶẕయ䛸䜀䜜ᕤᴗⓗ䛻㔜せ䛷䛒䜛䚹䛣䜜䜢㻔㻹㼓㻘㻯㼍㻘㻿㼞㻘㻮㼍㻘㼆㼚㻕㻙㻔㼀㼕㻘㼆㼞㻘㻿㼕㻘㻿㼚㻕㻙㻔㼂㻘㻼㻕⣔
㓟≀䛷㘒య㔜ྜ୪ิྜᡂἲ䛷᥈䛧䛯䚹⤖ᯝ䛸䛧䛶㻹㼓㻙㻿㼚㻙㼂⣔䛷㻝㻜㻜㻜䉝䠈㻿㼞㻙㼆㼞㻙㻼⣔䛷㻝㻠㻜㻜䉝⇕ฎ⌮䛾᮲
௳䛷㑏ඖ䛜㉳䛣䜛䛜Ⓨぢ䛥䜜䛯䚹䛣䛾䜘䛖䛻䠈㘒య㔜ྜ୪ิྜᡂἲ䛷㑏ඖ䛻ᚲ㡲䛺ඖ⣲䛾⤌䜏ྜ䜟䛫䜢㎿
㏿䛻ồ䜑䜛䛜ฟ᮶䛯䚹㻌 㻌
⎔ቃㄪᆺỈ⁐ᾮࣉࣟࢭࢫࡼࡿ࣓ࢯ࣏࣮ࣛࢫࢩࣜ࢝ࡢྜᡂ
㻌 ᮏ◊✲䛷䛿Ỉ⁐ᛶ䝅䝸䝁䞁ྜ≀䜢⏝䛔䛶䛺Ỉ⁐ᾮ䝥䝻䝉䝇䛻䜘䜛䝯䝋䝫 䞊䝷䝇䝅䝸䜹䛾ྜᡂ⾜䛳䛯䚹㠀䜲䜸䞁⏺㠃άᛶ㻔㻼㻝㻞㻟㻕䜢䝔䞁䝥䝺䞊䝖䛸䛧䛶ྜᡂ䛧 䛯⤖ᯝ䠈つ๎ⓗ䛺Ꮝ䜢᭷䛩䜛䝅䝸䜹䛾ྜᡂ䛻ᡂຌ䛧䛯䚹䛥䜙䛻䠈Ỉ⁐ᛶ䝅䝸䝁䞁ྜ
≀䛾䝅䝸䝁䞁䛸᭷ᶵ㓄Ꮚ䛾ྜ䜢ኚ䛘䜛䛣䛸䛻䜘䜚䠈␗䛺䜛ᚤ⣽ᵓ㐀䜢᭷䛩䜛䝯䝋䝫 䞊䝷䝇䝅䝸䜹䜢ྜᡂ䛷䛝䛯䚹㻌
㻌
࣑ࣥ⣔ྜ≀ࢆ㓄Ꮚࡍࡿ᪂つỈ⁐ᛶࢳࢱࣥ㘒యࡢ㛤Ⓨ࠾ࡼࡧࡑࡢᛂ⏝
㛵ࡍࡿ◊✲
㻌 㻱㻰㼀㻭䜢㓄Ꮚ䛸䛩䜛Ỉ⁐ᛶ䝏䝍䞁㘒య䛾Ỉ⇕ฎ⌮䛻䜘䜚䝤䝹䜹䜲䝖䛜༢┦䛷ᚓ䜙 䜜䜛䛣䛸䛛䜙䠈䜰䝭䞁⣔ྜ≀䛻╔┠䛧䠈䛭䜜䜙䜢㓄Ꮚ䛸䛩䜛᪂つỈ⁐ᛶ䝏䝍䞁㘒య䛾 㛤Ⓨ䜢ヨ䜏䛯䚹㻝㻘㻟㻙䝥䝻䝟䞁䝆䜰䝭䞁ᅄ㓑㓟㻔㻼㻰㼀㻭㻕䛺䛹䜢⏝䛔䜛䛣䛸䛷ィ㻤✀㢮䛾᪂つỈ
⁐ᛶ䝏䝍䞁㘒య䛾㛤Ⓨ䛻ᡂຌ䛧䠈䛣䜜䜙㘒యỈ⁐ᾮ䛾Ỉ⇕ฎ⌮䛛䜙䛿ῧຍ≀䛺䛧䛷䜒䝤
䝹䜹䜲䝖ᆺ㓟䝏䝍䞁䛜ᚓ䜙䜜䜔䛩䛔ഴྥ䜢ぢฟ䛧䛯䚹㻌 Ti-PDTAỈ⁐ᾮ䛾እほ㘒య
Ỉ⁐ᛶࢳࢱࣥ㘒యࢆ⏝࠸ࡓ≉␗ᙧែࢆ᭷ࡍࡿ㓟ࢳࢱࣥከᙧࡢỈ⇕ྜᡂ 㻌 Ỉ⁐ᛶ䝏䝍䞁㘒య䜢Ỉ⇕ฎ⌮䛩䜛䛣䛸䛷䠈≉␗䛺ᙧែ䜢᭷䛩䜛䝤䝹
䜹䜲䝖ᆺ㓟䝏䝍䞁䛜ྜᡂྍ⬟䛷䛒䜛䛣䛸䜢ぢฟ䛧䛯䚹㏻ᖖᚓ䜙䜜䜛䝤䝹 䜹䜲䝖ᆺ㓟䝏䝍䞁䛾ᙧែ䛿䠈䜰䝇䝨䜽䝖ẚ䛜㻞䠉㻠⛬ᗘ䛾Წ≧䛷䛒䜛䛾䛻 ᑐ䛧䠈ᮏᡭἲ䜢⏝䛔䜛䛸᭱䛷㻞㻜䜎䛷䜰䝇䝨䜽䝖ẚ䜢ቑຍ䛷䛝䜛䛣䛸䛜ศ䛛 䛳䛯䚹䜎䛯䠈䛭䜜䜙䛜จ㞟䛧䝸䝪䞁≧䛾≉␗䛺ᙧែ䜢᭷䛩䜛⢏Ꮚ䛾ྜᡂ䜒
ྍ⬟䛷䛒䛳䛯䚹㻌 㻌
Ỉ⁐ᾮࣉࣟࢭࢫࢆ⏝࠸ࡓ 7L7D 」ྜ⣔Ỉศゎගゐ፹ࡢ㛤Ⓨ
㻌 䛔䜎䜎䛷Ỉศゎගゐ፹䛸䛧䛶䛾≉ᛶ䛜䜋䛸䜣䛹ሗ࿌䛥䜜䛶䛔䛺䛛䛳䛯 㼀㼕㻙㼀㼍 」ྜ⣔㓟≀䛻╔┠䛧䠈⎔
ቃㄪᆺ䛾Ỉ⁐ᾮ䝥䝻䝉䝇䜢⏝䛔䛯ྜᡂ䛚䜘䜃ගゐ፹≉ᛶホ౯䜢⾜䛳䛯䚹䛭䛾⤖ᯝ䠈䛔䛟䛴䛛䛾 㼀㼕㻙㼀㼍 」ྜ
⣔㓟≀䛜⣸እග↷ᑕୗ䛻䛚䛔䛶Ỉ䜢ศゎ䛩䜛䛣䛸䛜ྍ⬟䛺ගゐ፹䛷䛒䜛䛣䛸䜢ぢฟ䛧䛯䚹䛣䜜䜙 㼀㼕㻙㼀㼍 」ྜ
⣔ගゐ፹䛾ᛂ䜢ಁ㐍䛩䜛䛯䜑䛾ຓゐ፹䛸䛧䛶䛿 㻯㼞㻞㻙㼤㻾㼔㼤㻻㻟䛜᭷ຠ䛷䛒䜛䛣䛸䜢᫂䜙䛛䛻䛧䛯䚹㻌 㻌
Ỉศゎࡢࡓࡵࡢ᪂つගゐ፹ᮦᩱࡢ㛤Ⓨ
㻌 㼀㼍 ⣔」ྜ㓟≀䛿Ỉศゎගゐ፹䛸䛧䛶᭷ᮃ䛷䛒䜛䛜䠈䝖䝸䝹 䝏䝹ᵓ㐀䜢᭷䛩䜛 㻹㼓㼀㼍㻞㻻㻢䛾ගゐ፹άᛶ䛿䜎䛰䜘䛟ㄪ䜉䜙䜜䛶䛔 䛺䛛䛳䛯䚹ᮏ◊✲䛷䛿䠈㻹㼓㼀㼍㻞㻻㻢䜢⁐ᾮἲ䛷䛒䜛㘒య㔜ྜἲ䛻䜘䜛
ྜᡂ䛚䜘䜃䛭䛾ගゐ፹άᛶホ౯䜢᳨ウ䛧䛯䚹䝞䞁䝗䜼䝱䝑䝥䛜 㻠㻚㻠㼑㼂 䛷䛒䜛 㻹㼓㼀㼍㻞㻻㻢䛿䠈⣸እග↷ᑕୗ䛻䛚䛔䛶Ỉ䛛䜙Ỉ⣲䛸㓟
⣲䜢⏕ᡂ䛩䜛ගゐ፹䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯䚹䛭䛾άᛶ䛿䠈㧗άᛶ䛺 㻺㼍㼀㼍㻻㻟ගゐ፹䛻༉ᩛ䛩䜛䛣䛸䜢᫂䜙䛛䛻䛧䛯䚹㻌
㻌
㔠ᒓ⨨ࡼࡿගゐ፹≉ᛶไᚚ
㻌 㧗άᛶ䛺ྍどගᛂ⟅ᛶගゐ፹䛷䛒䜛 㻮㼕㼂㻻㻠䛸䛭䛾㔠ᒓ⨨య䛻䛴䛔䛶㘒య㔜ྜἲ䛻䜘䜛ྜᡂ䜢ヨ䜏 䛯䚹䛭䛾⤖ᯝ䠈άᛶ┦䛷䛒䜛䝅䞊䝷䜲䝖ᵓ㐀䜢᭷䛩䜛 㻮㼕㼂㻻㻠䛚䜘䜃 㻯㼍㼃㻻㻠䛸䛾ᅛ⁐య䛷䛒䜛 㻮㼕㻝㻙㼤㻯㼍㼤㼂㻝㻙㼤㼃㼤㻻㻠
䛾ྜᡂ䛻ᡂຌ䛧䛯䚹⣸እ䞊ྍど྾䝇䝨䜽䝖䝹䜢ㄪ䜉䛯䛸䛣䜝 㻮㼕㻝㻙㼤㻯㼍㼤㼂㻝㻙㼤㼃㼤㻻㻠ᅛ⁐య䛾྾䛜䠈⤌ᡂ䛻䜘䜚 㐃⥆ⓗ䛻ኚ䛧䛯䚹䛣䛾 㻮㼕㻝㻙㼤㻯㼍㼤㼂㻝㻙㼤㼃㼤㻻㻠ᅛ⁐య䛿䠈㖟䜲䜸䞁䜢㓟䛻⏝䛔䛯Ỉ䛾㓟䛻䜘䜛㓟⣲⏕ᡂ
ᛂ䛻ᑐ䛧䛶άᛶ䜢♧䛧䛯䚹㻌 㻌
㟁Ⲵ⿵ൾᆺ❅⣲⨨ගゐ፹ࡢ㛤Ⓨ
㻌 㔠ᒓ㓟❅≀䛿ྍどගᛂ⟅ᆺ䛾ගゐ፹ᮦᩱ䛸䛧䛶ᮇᚅ䛜ᣢ䛯 䜜䛶䛚䜚䠈᪂つ䛺㓟❅≀ගゐ፹䛾㛤Ⓨ䛜ồ䜑䜙䜜䛶䛔䜛䚹䛭䛣䛷䠈 ᙜ◊✲䜾䝹䞊䝥䛷䛿䠈㓟≀䛻ᑐ䛧䛶㧗㓟ᩘ㔠ᒓ䜲䜸䞁䛸❅≀
䜲䜸䞁䜢ඹ⨨䛩䜛㟁Ⲵ⿵ൾᆺ❅⣲⨨䛻䜘䜛᪂つ䛺㓟❅≀䛾
ྜᡂ䜢ヨ䜏䛯䚹㻺㼍㼀㼍㻻㻟䛿┤᥋❅䛥䜜䛺䛔䛾䛻ᑐ䛧䛶㻿㼞⨨䛧䛯 㻺㼍㼀㼍㻻㻟䛿❅䛥䜜䜛䛣䛸䛷᪂䛧䛔྾ᖏ䛜Ⓨ⌧䛩䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹㻌
䝸䝪䞁≧䝤䝹䜹䜲䝖ᆺ㓟䝏䝍䞁
500
1D[6U[7D2[1[ࡢ྾ࢫ࣌ࢡࢺࣝ
300 400 500 600
Absorbance
Wavelength / nm 㻺㻴㻟ฎ⌮ 㻿㼞㻞㻡㻑㻙㻺㼍㼀㼍㻻㻟㻌 㻺㻴㻟ฎ⌮㻌
㻌 㻺㼍㼀㼍㻻㻟㻌
0J7D2ගゐ፹ࡼࡿỈศゎᛂ㻌
0 1 2
0 1 2 3 4
Amounts of products / mmol
TIme / h
MgTa2O6
NaTaO3 H2
O2
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