TY - JOUR
T1 - Comparative study of PTB7:PC71BM based polymer solar cells fabricated under different working environments
AU - Datt, Ram
AU - Arya, Sandeep
AU - Bishnoi, Swati
AU - Gupta, Ramashanker
AU - Gupta, Vinay
AU - Khosla, Ajit
N1 - Funding Information:
Author Ram Datt would like to acknowledge the financial support from UGC-SRF. We are thankful to Dr. Ritu Srivastva and Dr. Nita Dilawar for providing AFM imaging and Raman Spectroscopy facilities, respectively. Authors Sandeep Arya and Swati Bishnoi acknowledge INSA-Visiting Scientist fellowship and CSIR-RA (31/1(0494)/2018-EMR-I), respectively. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Publisher Copyright:
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2022/1
Y1 - 2022/1
N2 - In this article, we have evaluated the performance of inverted organic solar cells (OSCs) fabricated under ambient air and inert environment. Here, poly([4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl]{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl}) (PTB7) donor with [6,6]-phenyl C70-butyric acid methyl ester (PC71BM) acceptor were employed as a photoactive layer. The calculated power conversion efficiency (PCE) from current–voltage (J–V) characteristics for a device fabricated under an inert environment is 6.90% as compared to 3.96% for a device fabricated in ambient condition (25 °C, 100 kPa). The results revealed that the device processed in ambient conditions degrades the photovoltaic performance parameters, and the PCE decreased by 42.62% as compared to the devices fabricated in an inert environment. Along with this, we have also discussed in detail, the effect of the working environment on photoactive layers by Raman spectroscopy. The UV–Vis spectroscopy and Atomic Force Microscopy (AFM) techniques are presented to illustrate the optical properties and morphology of the photo-active layer respectively.
AB - In this article, we have evaluated the performance of inverted organic solar cells (OSCs) fabricated under ambient air and inert environment. Here, poly([4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl]{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl}) (PTB7) donor with [6,6]-phenyl C70-butyric acid methyl ester (PC71BM) acceptor were employed as a photoactive layer. The calculated power conversion efficiency (PCE) from current–voltage (J–V) characteristics for a device fabricated under an inert environment is 6.90% as compared to 3.96% for a device fabricated in ambient condition (25 °C, 100 kPa). The results revealed that the device processed in ambient conditions degrades the photovoltaic performance parameters, and the PCE decreased by 42.62% as compared to the devices fabricated in an inert environment. Along with this, we have also discussed in detail, the effect of the working environment on photoactive layers by Raman spectroscopy. The UV–Vis spectroscopy and Atomic Force Microscopy (AFM) techniques are presented to illustrate the optical properties and morphology of the photo-active layer respectively.
UR - http://www.scopus.com/inward/record.url?scp=85075354345&partnerID=8YFLogxK
U2 - 10.1007/s00542-019-04687-7
DO - 10.1007/s00542-019-04687-7
M3 - Article
AN - SCOPUS:85075354345
SN - 0946-7076
VL - 28
SP - 269
EP - 274
JO - Microsystem Technologies
JF - Microsystem Technologies
IS - 1
ER -
