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Effect of Randomly Grown Morphology of ZnO Nanorods in Inverted Organic Solar Cells

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Here, we analyzed the photovoltaic properties of the inverted organic solar cells (IOSCs) by using randomly oriented medium density ZnO nanorods (ZnO-NR) synthesized hydrothermally at low temperature conditions to avoid morphological defects. The IOSC with ZnO-NR (length < 150 nm) of medium density and random orientation showed an improvement of 83% in power conversion efficiency compared to the cell with (length < 20 nm) hydrothermally grown ZnO-NR. The optimized hydrothermal growth conditions for ZnO-NR enhanced the photovoltaic performance indicators by reducing recombination rate evidenced by the photovoltaic data. The qualitative elemental analysis of the ZnO-NR based interface was performed by the EDX, which confirmed that the as-grown ZnO-NR contain the Zn and O elements.

Keywords: Electron Buffer Layer; Hydrothermal; Interface; Inverted Organic Solar Cells; Nanorods; Power Conversion Efficiency; Sustainable Energy; Zinc Oxide

Document Type: Research Article

Affiliations: 1: Center for Coal Technology, University of the Punjab, Lahore, 54590, Pakistan 2: Department of Electronic Engineering, Jeju National University, Jeju, 63243, Republic of Korea 3: School of Architecture, University of Lahore, Lahore, 54000, Pakistan 4: Department of Energy Engineering, University of Engineering and Technology, Taxila, 47050, Pakistan 5: Faculty of Engineering, COMSATS Institute of Information Technology, Lahore, 54000, Pakistan 6: School of Chemical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea

Publication date: July 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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