Enhanced charge separation by sieve-layer mediation in high-efficiency inorganic-organic solar cells

Chien Hung Lin*, Surojit Chattopadhyay, Chia Wen Hsu, Meng Hsiu Wu, Wei Chao Chen, Chien Ting Wu, Shao Chin Tseng, Jih Shang Hwang, Jiun Haw Lee, Chun Wei Chen, Cheng Hsuan Chen, Li Chyong Chen, Kuei Hsien Chen

*此作品的通信作者

研究成果: Article同行評審

38 引文 斯高帕斯(Scopus)

摘要

A new component in the inorganic-organic (IN-OR) photovoltaic (PV) cell design was introduced in the form of an electronic sieve layer that can block hole diffusion and enhance charge separation and transport. A ZnPc(Aldrich) solution in toluene was spin coated on top of the sieve layer and annealed for 20 min at 90°C at a pressure of approximately 1×10-2Torr. The p-type AnPc layer is found to provide a uniform absorption over the visible spectrum and has a long absorption length of 80 nm and an exciton diffusion length of 30∓10nm. The oxide sieve layer produced by the surface-current-induced oxidation (SCIO) method gives the best incident photon-to-current collection efficiency (IPCE) in comparison to either thermal annealing (TA) oxide or the LiF. The variation in cell performance is due to the quality and thickness of the sieve with the best cell having the lowest stress and an optimum thickness resulting in hole blocking.

原文English
頁(從 - 到)759-763
頁數5
期刊Advanced Materials
21
發行號7
DOIs
出版狀態Published - 16 2月 2009

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