Quantum dot decorated aligned carbon nanotube bundles for a performance enhanced photoswitch

Sivaramapanicker Sreejith, Reinack Hansen, Hrishikesh Joshi, R. Govindan Kutty, Zheng Liu, Lianxi Zheng, Jinglei Yang, Yanli Zhao

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Photoactive materials that are triggered by the irradiation of light to generate an electrical response provide an ecofriendly platform to afford efficient power sources and switches. A chemical assembly of well-known elements with aligned carbon nanotube bundles is reported here, which was employed to form an efficient photo-induced charge transfer device. The primary elements of this device are ultra-long multi-walled carbon nanotube (MWCNT) bundles, polyaniline (PANI) thin film coating, and CdSe quantum dots (QDs). Highly ordered and horizontally aligned MWCNT bundles were coated with PANI to enhance charge transfer properties of active QDs in this platform. The obtained device (CdSe-MWCNT@PANI) constructed on a silicon base exhibits highly efficient power conversion capabilities owing to the aligned MWCNT bundle assisted enhanced charge transport pathways generated within the device. The device also shows a short circuit current density (Jsc) of 9.81 mA cm-2 and an open circuit voltage (Voc) of 0.46 V. The power conversion efficiency (PCE) of the device is 5.41%, and the current response is quite stable, highly responsive, and reproducible.

Original languageBritish English
Pages (from-to)8547-8552
Number of pages6
Issue number16
StatePublished - 28 Apr 2016


Dive into the research topics of 'Quantum dot decorated aligned carbon nanotube bundles for a performance enhanced photoswitch'. Together they form a unique fingerprint.

Cite this