مروری جامع بر عملکرد و خواص پلیمرهای رسانا با تمرکز بر پلی(4،3-اتیلن‌دی‌اکسی‌تیوفن):پلی(استیرن سولفونات) (PEDOT:PSS)

نوع مقاله : تالیفی

نویسندگان

1 پژوهشگاه پلیمر و پتروشیمی ایران

2 پژوهشگاه پلیمر

10.22063/basparesh.2025.35691.1737

چکیده

پلیمرهای رسانا به ­عنوان نسل چهارم مواد پلیمری با خواص الکتریکی برجسته و قابلیت انتقال بار الکتریکی، جایگاه منحصربه ­فردی در پژوهش‌های علمی و کاربردهای صنعتی یافته‌اند. این پلیمرها عموماً رسانندگی کمتری نسبت به فلزات دارند، اما فرایند دوپه کردن موجب افزایش چشمگیر رسانندگی آن‌ها می‌شود. رسانندگی الکتریکی در این پلیمرها عمدتاً ناشی از ساختار مزدوج پیوندهای π در زنجیر پلیمری است که امکان جابه­ جایی الکترون و حامل‌های بار را آسان می‌سازد. در میان انواع مختلف پلیمرهای رسانا، پلی­(4،3-اتیلن‌دی‌اکسی‌تیوفن):پلی(استیرن سولفونات) (PEDOT:PSS) به­ دلیل پراکنش‌پذیری آبی و ایجاد فیلم ­های پایدار و یکنواخت، مقاومت مکانیکی عالی؛ عملکرد برتر و پایداری محیطی درخور توجهی را ارائه می‌کند. این ویژگی ­ها، PEDOT:PSS را به گزینة بهینه‌ای برای کاربردهای نیازمند پایداری الکتریکی بلندمدت و انعطاف­ پذیری مکانیکی تبدیل کرده است. در این مقاله سازوکارهای انتقال بار، روش ­های سنتز و اثر دوپه کردن بر بهبود خواص PEDOT:PSS مرور می‌شود. تحلیل داده­ های ارائه­ شده نشان می‌دهد، فیلم نازک این پلیمر رسانندگی بیشتری نسبت به سایر پلیمرها دارد و قابلیت آن در پایداری رسانندگی دربرابر شرایط محیطی متغیر به اثبات رسیده است. هم ­افزایی خواص الکتریکی برتر، پایداری شیمیایی و انطباق‌پذیری زیاد، PEDOT:PS را به پلیمر رسانای پیشرو و کلیدی در توسعه فناوری‌های نوین الکترونیک و مواد انعطاف ­پذیر تبدیل کرده است.

کلیدواژه‌ها

عنوان مقاله [English]

A Comprehensive Review of the Performance and Properties of Conductive Polymers with a Focus on Poly(3,4-ethylenedioxythiophene):Polystyrene Sulfonate (PEDOT:PSS)

نویسندگان [English]

  • Ali Akbar Yousefi 1
  • Mohamadreza Shams 2
1
2 IPPI
چکیده [English]

Conducting polymers, as the fourth generation of polymeric materials with outstanding electrical properties and charge transport capabilities, have found a unique place in scientific research and industrial applications. These polymers generally have lower conductivity than metals, however the doping process significantly increases their conductive performance. Their electrical conductivity stems primarily from conjugated π-bonding systems within polymer backbones, facilitating efficient charge carrier mobility. Among the various types of conducting polymers, poly(4,3-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) offers excellent mechanical strength, superior performance, and remarkable environmental stability due to its aqueous dispersibility and the formation of stable and uniform films. These properties make PEDOT:PSS an optimal choice for applications requiring long-term electrical stability and mechanical flexibility. In this paper, the charge transport mechanisms, synthesis methods, and the effect of doping on improving the properties of PEDOT:PSS are reviewed. Data analysis of the presented results evidences superior conductivity of PEDOT:PSS even at ultrathin film thicknesses and its ability to maintain electrical stability under diverse environmental stressors. The synergy of superior electrical properties, chemical stability, and high adaptability has made PEDOT:PS a leading conductive polymer and essential for advancing next-generation flexible electronics and electronic materials.

کلیدواژه‌ها [English]

  • conductive polymer
  • poly(3
  • 4-ethylenedioxythiophene):poly(styrene sulfonate)
  • conductivity
  • stability
  • doping

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