Hybrid Solar Cells With Polymeric Bulk Heterojunction Layers Containing Inorganic Nanoparticles

Jeong, Jaehoon; Kwak, Eunjoo; Seo, Jooyeok; Kim, Hwajeong; Kim, Youngkyoo

doi:10.1109/jphotov.2016.2553785

Cited by 2 publications

(2 citation statements)

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“…In another words, light is absorbed by the photoactive layer which leads to the formation of excitons and free charge carrier generation at the interface of both semiconductor constituents. Various polymer-QD hybrid solar cells have been fabricated using semiconducting polymers like MEH-PPV [98], P3HT [99], PTB7 [100], PTB7-Th [101] and poly[2,6-(4,4-bis-(2-ethyhexyl)-4H-cyclopenta [2,1-b;3,4-b0]-dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCDTBT) [102,103], and semiconductor nanocrystals such as CdSe, CuInS 2 , CdS, InP [100], ZnO [101], CdSeTe [17] and PbSe [104] or PbS [98]. Photovoltaic characteristics of various QD sensitized polymeric solar cells have been briefly presented in Table 1.…”

Section: Hybrid Qd Based Solar Cellsmentioning

confidence: 99%

“…The overall device performance was best for ternary P3HT:PCBM:CdSe ternary cells after CdSe ligand exchange, showing a PCE of 2.96% compared to 2.85% for OA capped nanoparticles in ternary application and 2.74% for the binary P3HT:PCBM reference. Jeong et al [101] fabricated hybrid ternary solar cells consisting of PTB7-Th, PC 71 BM, and ZnO NP. When only 1wt% ZnO NP was added to the binary BHJ PTB7-Th:PC 71 BM layer, J SC and FF were noticeably improved, and V OC was kept constant.…”

Section: Hybrid Qd Based Solar Cellsmentioning

confidence: 99%

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Recent Developments in Quantum Dots/CNT Co-Sensitized Organic Solar Cells

Soltani¹,

Katbab²,

Ameri³

2017

J Material Sci Eng

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Polymer solar cells (PSCs) are emerging alternative candidates to the standard silicone technology for green and renewable energy generation owing to their flexibility and solution processability. Bulk heterojunction (BHJ) organic solar cells (OSCs) based on conjugated semiconducting polymers as donor (D) and fullerene derivatives as acceptor (A) offer large D/A interfacial area, which overcomes the short exciton diffusion length. Although, recent advances in narrow band gap semiconducting polymers have led to the improvement in power conversion efficiency of organic photovoltaics (OPVs) beyond 10%, inefficient charge separation and low carrier mobility as well as negligible photon harvesting in near-infrared (NIR) and/or infrared (IR) region of the solar spectrum have still remained as bottle neck for ultimate performance of OPVs. Most PSCs only absorb the UV-visible part of the solar spectrum, leading to the low light harvesting efficiency. Hence, solution processed photoactive materials comprising nanostructured semiconducting inorganic quantum dots (QDs) as sensitizer have attracted great attention to improve energy conversion efficiency of the OPVs. This is attributed to the outstanding optoelectronic properties of QDs such as band gap tunability, potential NIR photons harvesting and multi exciton generation (MEG). However, the main shortcoming of inorganic QDs based OSCs is randomly hopping charge transport among discrete QD particles, which can be tackled through hybridization with one dimensional (1D) electrically conductive nanostructured materials such as carbon nanotube (CNT). By this way, CNT particles would behave as support for anchoring the light harvesting semiconductor QDs, leading to the enhancement of the exciton dissociation and charge transport towards the corresponding electrodes. Recently, manufacturing PSCs co-sensitized by QD loaded CNT has been shown as a promising direction to maximize performance of the device. This article reviews the recent developments in enhancement of OPVs" performance by utilization of high efficient light harvesting QDs and/or their hybrid with 1D CNTs.

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