ridm@nrct.go.th   ระบบคลังข้อมูลงานวิจัยไทย   รายการโปรดที่คุณเลือกไว้

Performance improvements in polymer nanofiber/fullerene solar cells with external electric field treatment

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Performance improvements in polymer nanofiber/fullerene solar cells with external electric field treatment
นักวิจัย : Solanki, Ankur , Wu, Bo , Salim, Teddy , Yeow, Edwin Kok Lee , Lam, Yeng Ming , Sum, Tze Chien
คำค้น : DRNTU::Engineering::Materials::Organic/Polymer electronics
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Solanki, A., Wu, B., Salim, T., Yeow, E. K. L., Lam, Y. M., & Sum, T. C. (2014). Performance improvements in polymer nanofiber/fullerene solar cells with external electric field treatment. The journal of physical chemistry C, 118(21), 11285-11291. , http://hdl.handle.net/10220/25131 , http://dx.doi.org/10.1021/jp5040097
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : The journal of physical chemistry C
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Organic solar cell (OSC) devices based on predominantly poly(3-hexylthiophene-2,5-diyl) (P3HT) nanofibers (NFs) exhibit inferior device performance compared to that of their conventional nanodomain P3HT:PCBM systems, which is credited to the low interfibrillar mobility between the NFs [Kurniawan, M.; et al. J. Phys. Chem. C2012, 116, 18015]. To improve the charge transport of these devices, external electric field (E-field) treatment of the active layer is performed in a bid to align the random polymer chains between the NFs perpendicular to the electrode. Extensive device testing revealed a 22.7% improvement in power conversion efficiency and higher mobilities (37.5% improvement) for the E-field-treated devices compared to those for the control. Transient absorption spectroscopy shows an improved initial generation of carriers and formation of polarons in the E-field-treated samples over those in the control samples in the femtosecond–nanosecond time scale. However, in the absence of any sweep-out voltage in the E-field-treated films, a higher recombination rate in the nanosecond–microsecond time scale is observed. Concomitant with the improved device efficiencies and higher mobilities measured in the E-field-treated devices and the higher recombination rate over the nanosecond–microsecond time scale in the E-field-treated films, we assert that the E-field treatment improved charge mobility and transport of P3HT-NF:PCBM through improved orientation of the polymer chains in the amorphous P3HT phase coexisting with the NFs.

บรรณานุกรม :
Solanki, Ankur , Wu, Bo , Salim, Teddy , Yeow, Edwin Kok Lee , Lam, Yeng Ming , Sum, Tze Chien . (2557). Performance improvements in polymer nanofiber/fullerene solar cells with external electric field treatment.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Solanki, Ankur , Wu, Bo , Salim, Teddy , Yeow, Edwin Kok Lee , Lam, Yeng Ming , Sum, Tze Chien . 2557. "Performance improvements in polymer nanofiber/fullerene solar cells with external electric field treatment".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Solanki, Ankur , Wu, Bo , Salim, Teddy , Yeow, Edwin Kok Lee , Lam, Yeng Ming , Sum, Tze Chien . "Performance improvements in polymer nanofiber/fullerene solar cells with external electric field treatment."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Solanki, Ankur , Wu, Bo , Salim, Teddy , Yeow, Edwin Kok Lee , Lam, Yeng Ming , Sum, Tze Chien . Performance improvements in polymer nanofiber/fullerene solar cells with external electric field treatment. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.