Optimizing the organic solar cell efficiency: Role of the active layer thickness
[ X ]
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A 2-dodecyl benzotriazole and 9,9-dioctylfluorene containing alternating conjugated polymer, poly((9,9-dioctylfluorene)-2,7-diyl-(4,7-bis(thien-2-yl) 2-dodecyl-benzo[1,2,3]triazole)) (PFTBT), was blended with PCBM (1:1, w/w) and spin coated on ITO substrates using varying rotational speeds to obtain different active layer thicknesses. J–V characteristics of the constructed devices were investigated both in dark and under simulated sunlight (AM 1.5G, 100 mW/cm2). For the determination of hole mobilities the space charge limited current (SCLC) method was used and found as 1.69×10?6 cm2/Vs. In addition, the power conversion efficiency (PCE) of the devices was varied according to active layer thickness and the best power conversion efficiency was recorded as 1.06%. Moreover, incident-photon-to-current-efficiency (IPCE) measurements were carried out and the best efficiency was found to be 51%. Morphology of the active layers was probed using AFM and TEM techniques.
Açıklama
Anahtar Kelimeler
Active Layer Optimization, Organic Solar Cells, Space Charge Limited Current
Kaynak
Solar Energy Materials and Solar Cells
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
113
Sayı
Künye
Apaydın, D. H., Yıldız, D. E., Çırpan, A., Toppare, L. K.(2013). Optimizing the organic solar cell efficiency: role of the active layer thickness. Solar Energy Materials and Solar Cells, 113, 100-105.
