Trigonal pyramidal CuInSe2 nanocryastals derived by a new method for photovoltaic applications |
| |
| Authors: | Fengyu ShenWenxiu Que Peng ZhongJin Zhang Xingtian Yin |
| |
| Institution: | Electronic Materials Research Laboratory, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, PR China |
| |
| Abstract: | Copper indium selenide (CuInSe2) nanocrystals with trigonal pyramidal shape are synthesized by a two-step process for photovoltaic applications. Structural, morphological and optical properties of the as-synthesized CuInSe2 nanocrystals are characterized by using powder X-ray diffraction analysis, transmission electron microscopy, X-ray photoelectron spectroscopy and UV-Vis absorption spectroscopy. Results indicate that the monodispersed nanocrystals show a single phase polycrystalline and the size of the trigonal pyramid is in the range of 10-12 nm, and the average composition ratio of the Cu/In/Se is measured to be 1.0:1.2:2.0. It is also investigated that the size and morphology of the CuInSe2 nanocrystals can be tuned through a manipulation of the reaction time. Under an illumination of the simulated AM 1.5, the as-fabricated hybrid solar cell based on the P3HT/CuInSe2 nanocrystals blends exhibits a promising open circuit voltage (Voc) of 0.42 V and its energy conversion efficiency is as 3 times as that of the solar cell fabricated by only the naked P3HT polymer. |
| |
| Keywords: | Copper indium selenide Trigonal pyramid Hybrid solar cell |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
