Wang Chunru

Fullerene derivatives as acceptors for polymer solar cells

Polymer solar cells (PSCs) have drawn broad attention because of their advantages of low cost, light weight, and flexibility. Tremendous progress has been made on polymer solar cells to achieve high power conversion efficiency (PCE), and PCE of PSCs has already reached to 8%. The fullerene derivative is used as the excellent electron acceptor for PSCs, and the development of highly efficient fullerene acceptors has become the hot research field in recent years. In this paper, we reviewed the recent research progress on several types of fullerene derivative acceptors and heir relevant photovoltaic device properties, which could afford some reference for the development of high performance fullerene derivative acceptors.

Progress of fullerene-based interfacialmaterials in polymer solar cells

Polymer solar cells (PSCs) have drawn extensive attention because of their advantages of light weight, low cost and flexibility. Interfacial modification is an effective approach to maximize the efficiency of PSCs. Compared to inorganic metal oxides or polymer electrolytes, fullerene-based interfacial materials show excellent compatibility with active layer due to their proper electron affinity and structural similarity with electron acceptors. Thus, fullerene-based interfacial materials make great contribution to performance enhancement of PSCs. In this review, the device structure and photovoltaic parameters were introduced, and especially, recent progress in fullerene-based interfacial materials was reviewed in detail.

Carbon nanotubes induced by n-diamond in a thermal chemical vapor deposition process

This article addresses carbon nanotubes (CNTs) coating on n-diamond film induced by n-diamond itself in chemical vapor deposition process using ethanol as carbon source. Carbon balls, bamboo-like CNTs and multi-walled CNTs coating on n-diamond film were obtained through CVD process at 850, 900, and 950 ℃, respectively. The products were characterized by scanning electron microscopy, transmission electron microscopy, Raman and X-ray photoelectron spectroscopies. The experimental results indicate that the morphologies of the products induced by n-diamond film are temperature-dependent. Based on the obtained results, a reasonable growth mechanism is proposed.