Hybrid organic (P3HT & MEH-PPV)-inorganic (CuInGaSe2) nanocomposites : charge transfer & photostability studies

Aneeta Kharkwal; Shailesh N. Sharma; Suresh Chand; A. K. Singh

doi:10.1117/12.927367

15 October 2012 Hybrid organic (P3HT and MEH-PPV)-inorganic (CuInGaSe2) nanocomposites: charge transfer and photostability studies

Aneeta Kharkwal, Shailesh N. Sharma, Suresh Chand, A. K. Singh

Author Affiliations +

Proceedings Volume 8549, 16th International Workshop on Physics of Semiconductor Devices; 85493E (2012) https://doi.org/10.1117/12.927367
Event: 16th International Workshop on Physics of Semiconductor Devices, 2011, Kanpur, India

Abstract

In our work, we demonstrate the use of Copper Indium Gallium Diselenide(CIGSe) nanocrystals as electron acceptor in conducting polymer POLY(3-HEXYLTHIOPHENE)(P3HT) AND POLY(P-PHENYLENE VINYLENE) (PPV). We study the photo-induced charge separation and photostability of CIGSe-conducting polymer nanocomposites for the application of solar cells. CIGSe with P3HT ensures efficient charge transfer process across polymer-CIGSe interface as evident from higher quenching of Photoluminescence(PL) emission and higher value of rates of PL decays(PL/PLi), Stern-Volmer quenching constant K_vs and number of accessible fluorophores( F_a), as compared to MEH-PPV polymer. P3HT polymer owing to its crystalline lamellar structure and ordered morphology impart stability to CIGSe composite. Hence superior morphology and photostability as compared to MEH-PPV:CIGSe nanocomposites. P3HT:CIGSe nanocomposites may be exploited as potential active layer in photovoltaic and photoelectrochemical devices.

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Aneeta Kharkwal, Shailesh N. Sharma, Suresh Chand, and A. K. Singh "Hybrid organic (P3HT and MEH-PPV)-inorganic (CuInGaSe2) nanocomposites: charge transfer and photostability studies", Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85493E (15 October 2012); https://doi.org/10.1117/12.927367

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