We study application of Nanowires in photovoltaic and photo-electrochemical devices. Using block-copolymer as template, we fabricate inorganic nanowires by glancing angle deposition and reactive ion etching. Due to large surface-to-volume ratio, nanowires can efficiently absorb light and charge separation distance can be very short allowing significant room to enhance the efficiency of solar cells .
Atikur Rahman, Janice Wynn Guikema, Soo Hyung Lee and Nina Markovic´, Transmission of phase information between electrons and holes in graphene. Phys. Rev. B (Rapid Comm.), 87, 081401(R) (2013).
Atikur Rahman and Milan K. Sanyal. Negative capacitance in Wigner crystal forming polymer nanowires. Appl. Phys. Lett. 94, 242102 (2009).
Atikur Rahman and Milan K. Sanyal, Observation of charge density wave characteristics in conducting polymer nanowires: Possibility of Wigner crystallization. Phys. Rev. B 76, 045110 (2007).
Atikur Rahman and Milan K. Sanyal, Novel switching transition of resistance observed in conducting polymer nanowires. Adv. Mater. 19, 3956 (2007).
A. Rahman, M. K. Sanyal, R. Gangopadhayy, A. De and I. Das, Evidence of a ratchet effect in nanowires of a conducting polymer. Phys. Rev. B 73, 125313 (2006).