本研究主要目的在於合成polyfluorene與N-arylnaphthalimide衍
生物的共聚高分子及其在高分子發光二極體(PLED)上的應用。單體
M1~M6是具有不同的推、拉電子基的染料(dyes)，推、拉電子基可
以改變N-arylnaphthalimide衍生物的發光波長。單體M1~M6與2,7-
dibromo-9,9-dioctylfluorene用Yamamoto coupling 的方式共聚合，可以
得到高分子P1~P6。在熱性質方面，P1~P6的熱裂解溫度(T5d)都超過
420℃比純polyfluorene的410℃還要高。在DSC上觀察到P3~P5的玻
璃轉移溫度(Tg)大約在110℃左右，P1、P2、P6沒有偵測到它們的
玻璃轉移溫度。在光激發光方面，可以觀察到能量由polyfluorene
鏈段轉移到染料單體(M1~M6)鏈段，波長由PL λmax在442 nm轉移
到PL λmax在470 nm到507 nm。在元件電激發光分析方面，電激發光
波長最大值(EL λmax)可以由純polyfluorene的430nm轉移到P1~P6的
460nm ~520nm，光色可以由藍光轉移到藍綠光與綠光。本研究的元
件結構為ITO / PEDOT:PSS / PVK / POLYMER / Ca / Ag。其中
PEDOT:PSS是電洞注入層(HIL)，PVK是電洞傳輸層(HTL)。

The goal of this research is to study the synthesis of polyfluorene
and N-arylnaphthalimide derivatives copolymers and their applications in
polymer light emitting diode.Monomers M1~M6 are dyes with different
withdrawing or donating electron groups，these groups can shift the
photoluminescence (PL) wavelengths of N-arylnaphthalimide
derivatives. Monomers M1~M6 copolymerized with 2,7- dibromo
-9,9-dioctylfluorene by Yamamoto coupling to obtain polymers P1~P6.
On the thermal properties, thermal decomposition temperature (T5d) of
P1~P6 are higher than the T5d of pure polyfluorene. Tg of P3~P5 are
around 110℃ which were observed form DSC. We could not find the
Tg of P1、P2 and P6 in DSC analysis. On the photoluminescence (PL)
spectrum analysis ,we found that the energy transfer form the chains of
polyfluorene to the chains of the dyes, PL λmax shift from 442nm to
470nm~507nm. On the electroluminescence (EL) spectrum analysis, EL
λmax can change from 430nm of pure polyfluorene to 460nm~520nm of
P1~P6.The colors can also shift from blue to blue-greenish and green.
The device structure in this research are ITO / PEDOT:PSS / PVK /
POLYMER / Ca / Ag. The PEDOT:PSS is a hole injection layer (HIL) and the PVK is a hole transport layer (HTL).

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