JP6066121B2 - 新規の色変換体 - Google Patents
新規の色変換体 Download PDFInfo
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- JP6066121B2 JP6066121B2 JP2014509716A JP2014509716A JP6066121B2 JP 6066121 B2 JP6066121 B2 JP 6066121B2 JP 2014509716 A JP2014509716 A JP 2014509716A JP 2014509716 A JP2014509716 A JP 2014509716A JP 6066121 B2 JP6066121 B2 JP 6066121B2
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- color converter
- organic fluorescent
- color
- bis
- barrier layer
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/10—Refractors for light sources comprising photoluminescent material
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Description
R1は直鎖または分枝鎖のC1〜C18−アルキル基、C4〜C8−シクロアルキル基であってハロゲンによってまたは直鎖もしくは分枝鎖のC1〜C18−アルキルによって一置換または多置換され得るもの、またはフェニルまたはナフチルであってハロゲンによってまたは直鎖もしくは分枝鎖のC1〜C18−アルキルによって一置換または多置換され得るものである]。
R1は直鎖または分枝鎖のC1〜C18−アルキル基、C4〜C8−シクロアルキル基であって前記はハロゲンによってまたは直鎖もしくは分枝鎖のC1〜C18−アルキルによって一置換または多置換され得るもの、またはフェニルまたはナフチルであってハロゲンによってまたは直鎖もしくは分枝鎖のC1〜C18−アルキルによって一置換または多置換され得るものである]。
使用材料:
ポリマー1: DIN EN ISO 306によるビカー軟化温度96℃を有するメチルメタクリレートの透明なホモポリマー(Plexiglas(登録商標) 6N Evonik製)。
試料を、16個の市販のRebel(商標)シリーズのGaN−LEDから構成される自己構築(self−constructed)露光装置(Lumileds Lighting製、波長約451nm)で露光した。乳白ガラスの2つの光散乱板を露光装置の前に配置した。各々の試料の位置での輝度は、均質に分布され、且つ約0.08W/cm2であった。
分析のために、試料を露光位置から取り出し、且つC9920−02量子効率測定システム(Hamamatsu製)において分析した。これは、積分球(ウルブリヒト球)内で各々の試料を450〜455nmの光で照射することを含む。ウルブリヒト球内で試料を用いない参照測定と比較することによって、励起光の非吸収部分および試料によって放射される蛍光を、較正されたCCD分光計を用いて測定する。非吸収励起光についての、または放射される蛍光についての強度の積分が、各々の試料の吸収度または蛍光強度または蛍光量子効率をもたらす。
約2.5gのポリマーおよび所望の量の色素を、約5mlの塩化メチレン中で溶解し、且つ、使用されたポリマー量に対して0.5質量%のTiO2をそこに分散させた。生じる溶液/分散液を、箱形のコーティングバーを用いてガラス表面上に被覆した(ウェット膜厚400μm)。溶剤を乾燥除去した後、該膜をガラスから取り外し、50℃で、真空乾燥キャビネット内にて終夜乾燥させた。各々、直径22mmを有する2つの円形の膜片をこの膜から打ち出し、その後、試験試料として用いた。
そのように得られた膜片を、バリア材料1と共に、窒素充填されたグローブボックスに移した。約2時間後、該膜片をバリア材料1の2つのシートの間に配置し、そして指で押した。引き続き、サンドイッチ状に包まれたそのように得られた試験試料を、ガラス板の端部で、光硬化性エポキシ接着剤を用いて封止し、且つグローブボックスから再度取り出した。
所望の量の色素、ポリマーおよびTiO2(以下の表1参照)を、Collin ZSK 25−30D型の二軸押出機に供給し、顆粒へと加工した。Collin Teach line E 20 Tの一軸押出機に、この顆粒を充填した。該顆粒を、スロットタイプのノズルを介して約400μmの厚さを有する膜へと加工した。各々、直径22mmを有する円形のフィルム片をこのフィルムから打ち出し、その後、試験試料として用いた。
手段a)
打ち抜かれた膜片を、バリア材料2(ESCAL(商標)膜)と共に、黄色光条件での窒素充填されたグローブボックス内に移した。約2時間後、光硬化性接着剤を膜片の上側に塗布した。接着剤の側にバリア材料2を置き、且つローラーを使用してプレスした。接着剤を、UV−A光および可視光を用いて硬化させた。同じ手順を膜片の下側で繰り返した。最後に、色変換体を除いて(passing over)上部および下部のバリア材料を、ヒートシーリングプライヤーを用いて封止した。そのように得られた色変換体は、上側と下側との両方にバリア層を有した。
打ち抜かれた膜片を、バリア材料2(ESCAL(商標)膜)と共に、窒素充填されたグローブボックス内に移した。該グローブボックスは、ヒートシール(hetseal)ラミネータを有していた。約2時間後、膜片とバリア材料2(ESCAL(商標)膜、膜片に面するバリア材料のPE側)とを一緒に、150℃でプレスし、且つ、ホットシールラミネータ内で封止した。同じ手順を膜片の下側で繰り返した。
約20gのポリマーおよび所望の量の色素を、約60mlの塩化メチレン中で溶解し、且つ、使用されたポリマー量に対して0.1質量%のTiO2をそこに分散させた(表2参照)。得られる溶液/分散液で、ガラス表面上を被覆した。溶剤を乾燥除去した後、膜をガラスから取り外し、破砕し、50℃、真空乾燥キャビネット内で終夜乾燥させ、研究室用ミル内で粉砕し、そして、得られた粉末を50℃、真空乾燥キャビネット内で終夜乾燥させた。該粉末を200℃、圧力3barで(6分間)ホットプレスし、その後、100barの圧力で(5分)、金属プレスフレームを使用して、各々直径1.5mmを有する円形のポリマー膜片にした。
バリア材料2を使用し、上記の封止工程を繰り返したが、色変換体6および7の代わりに色変換体8および9を使用した。
色変換体6および7についての上記の封止工程を繰り返したが、バリア材料2の代わりにバリア材料3を使用した。
色変換体6および7についての上記の封止工程を繰り返したが、バリア材料2の代わりにバリア材料4を使用した。
色変換体8および9についての上記の封止工程を繰り返したが、バリア材料2の代わりにバリア材料3を使用した。
色変換体8および9についての上記の封止工程を繰り返したが、バリア材料2の代わりにバリア材料4を使用した。
Claims (18)
- 少なくとも1つの有機蛍光着色剤を含む少なくとも1つの層と、低い酸素透過率を有する少なくとも1つのバリア層とを含む色変換体であって、前記少なくとも1つの有機蛍光着色剤を含む少なくとも1つの層が、低い酸素透過率を有する少なくとも1つのバリア層によって全ての側を取り囲まれており、且つ前記少なくとも1つの有機蛍光着色剤が、官能化ナフタレンまたはリレン誘導体から選択される有機蛍光色素である、前記色変換体。
- 前記少なくとも1つのバリア層が、本質的に、低い酸素比透過率を有する少なくとも1つのバリア材料からなる、請求項1に記載の色変換体。
- 前記少なくとも1つのバリア層が、本質的に、ガラス、ガラスとは異なる金属酸化物、および少なくとも1つのポリマーから選択される少なくとも1つのバリア材料からなる、請求項1または2に記載の色変換体。
- 前記バリア材料が、ガラス、石英、金属酸化物、SiO2、窒化チタン、SiO2/金属酸化物多層材料、ポリビニルアルコール、ポリアクリロニトリル、ポリ塩化ビニリデン(PVDC)、液晶ポリマー(LCP)、ポリスチレン−アクリロニトリル(SAN)、ポリブチレンテレタレート(PBT)、ポリブチレンナフタレート(PBN)、ポリエチレンテレフタレート(PET)、ポリエチレンナフタレート(PEN)、ポリビニルブチレート(PVB)、ポリ塩化ビニル(PVC)、ポリアミド、ポリオキシメチレン、ポリイミド、ポリエーテルイミド、エポキシ樹脂、エチレン酢酸ビニル(EVA)から誘導されるポリマー、およびエチレンビニルアルコール(EVOH)から誘導されるポリマーから選択される、請求項1から3までのいずれか1項に記載の色変換体。
- 前記バリア材料がガラスである、請求項4に記載の色変換体。
- 前記少なくとも1つのバリア層が、水蒸気に対する低い透過率を有する、請求項1から5までのいずれか1項に記載の色変換体。
- 前記少なくとも1つの有機蛍光着色剤が、黄色、緑色、赤色、および橙色の蛍光を発する有機蛍光色素から選択される、請求項1から6までのいずれか1項に記載の色変換体。
- 前記少なくとも1つの有機蛍光着色剤が、ナフタレンまたはペリレン誘導体である、請求項1から7までのいずれか1項に記載の色変換体。
- 前記少なくとも1つの有機蛍光色素が、
R1は、直鎖または分枝鎖のC1〜C18−アルキル基、C4〜C8−シクロアルキル基であってハロゲンによってまたは直鎖もしくは分枝鎖のC1〜C18−アルキルによって一置換もしくは多置換され得るもの、またはフェニルまたはナフチルであり、前記フェニルおよびナフチルは、ハロゲンによってまたは直鎖もしくは分枝鎖のC1〜C18−アルキルによって一置換もしくは多置換され得る、
Xは、オルトおよび/またはパラ位における置換基を表し、且つ、直鎖もしくは分枝鎖のC1〜C18−アルキルである、
yは、0〜3の数である]
から選択される、請求項1から8までのいずれか1項に記載の色変換体。 - 前記少なくとも1つの有機蛍光色素が、N,N’−ビス(2,6−ジイソプロピルフェニル)−1,7−ジ(2,6−ジイソプロピルフェノキシ)ペリレン−3,4:9,10−テトラカルボキシイミド、N,N’−ビス(2,6−ジイソプロピルフェニル)−1,6−ジ(2,6−ジイソプロピルフェノキシ)ペリレン−3,4:9,10−テトラカルボキシイミド、3,9−ジシアノペリレン−4,10−ビス(イソブチルカルボキシレート)、3,10−ジシアノペリレン−4,9−ビス(イソブチルカルボキシレート)、3,9−ジシアノペリレン−4,10−ビス(sec−ブチルカルボキシレート)、3,10−ジシアノペリレン−4,9−ビス(sec−ブチルカルボキシレート)、9−シアノ−N−(2,6−ジ(イソプロピル)フェニル)ペリレン−3,4−ジカルボン酸モノイミド、およびそれらの混合物から選択される、請求項1から9までのいずれか1項に記載の色変換体。
- 前記少なくとも1つの有機蛍光色素が、N,N’−ビス(2,6−ジイソプロピルフェニル)−1,7−ジ(2,6−ジイソプロピルフェノキシ)ペリレン−3,4:9,10−テトラカルボキシイミド、N,N’−ビス(2,6−ジイソプロピルフェニル)−1,6−ジ(2,6−ジイソプロピルフェノキシ)ペリレン−3,4:9,10−テトラカルボキシイミドおよびそれらの混合物から選択される、請求項10に記載の色変換体。
- 前記少なくとも1つの有機蛍光色素が、N,N’−ビス(2,6−ジイソプロピルフェニル)−1,6,7,12−テトラフェノキシペリレン−3,4:9,10−テトラカルボキシイミドである、請求項9に記載の色変換体。
- 前記少なくとも1つの有機蛍光着色剤が、本質的にポリスチレンまたはポリカーボネートからなる有機ポリマーのマトリックス中に埋め込まれている、請求項1から12までのいずれか1項に記載の色変換体。
- 膜、板またはシートである、請求項1から13までのいずれか1項に記載の色変換体。
- LEDによって生成される光を変換するための、請求項1から14までのいずれか1項に記載の色変換体の使用。
- 少なくとも1つのLED、および請求項1から14までのいずれか1項に記載の少なくとも1つの色変換体を含む、照明装置。
- LEDおよび色変換体が、リモートフォスファー構造で存在する、請求項16に記載の照明装置。
- 請求項1から14までのいずれか1項に記載の色変換体を含む、蛍光変換太陽電池。
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- 2012-05-09 US US14/115,934 patent/US9711665B2/en active Active
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US9711665B2 (en) | 2017-07-18 |
KR102047789B1 (ko) | 2019-11-22 |
CN103517964B (zh) | 2018-05-18 |
EP2707456B1 (en) | 2018-09-26 |
TWI601315B (zh) | 2017-10-01 |
BR112013028026A2 (pt) | 2017-01-10 |
CN103517964A (zh) | 2014-01-15 |
WO2012152812A1 (en) | 2012-11-15 |
EP2707456A1 (en) | 2014-03-19 |
RU2013154471A (ru) | 2015-06-20 |
KR20140043741A (ko) | 2014-04-10 |
US20140076397A1 (en) | 2014-03-20 |
TW201301578A (zh) | 2013-01-01 |
JP2014519191A (ja) | 2014-08-07 |
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