High-Performance Nanostructured Inorganic−Organic Heterojunction Solar Cells

Abstract

We report all solid-state nanostructured inorganic-organic heterojunction solar cells fabricated by depositing Sb(2)S(3) and poly(3-hexylthiophene) (P3HT) on the surface of a mesoporous TiO(2) layer, where Sb(2)S(3) acts as an absorbing semiconductor and P3HT acts as both a hole conductor and light absorber. These inorganic-organic light harvesters perform remarkably well with a maximum incident-photon-to-current efficiency (IPCE) of 80% and power conversion efficiency of 5.13% under air-mass 1.5 global (AM 1.5G) illumination with the intensity of 100 mW cm(-2). These devices are highly stable under room light in air, even without encapsulation. The present findings offer novel directions for achieving high-efficiency solid-state solar cells by hybridization of inorganic-organic light harvesters and hole transporters.

Electrical performance of conducting polymer (SPAN) grown on GaAs with different substrate orientations

“…Among the family of organic semiconductors, the semiconducting polymers have attracted the most attention for applications in electronic and optoelectronic devices, particularly due to their exceptional electrical properties and easy synthesis [2][3][4]. As a result, this category of polymers has been used in several applications such as organic light emitting diodes (OLEDs) [5,6], solar cells [7,8] As it is well known, the crystallographic orientation of the substrate has a significant effect on incorporation of impurities and defects and consequently on optical and electronic properties of III-V materials [28]. The ideality factor n and barrier height (BH) as well as the electrical characteristics are fundamental parameters of a Schottky barrier diode (SBD) and these give an indication about the quality of the Schottky interface.…”

“…Among the family of organic semiconductors, the semiconducting polymers have attracted the most attention for applications in electronic and optoelectronic devices, particularly due to their exceptional electrical properties and easy synthesis [2][3][4]. As a result, this category of polymers has been used in several applications such as organic light emitting diodes (OLEDs) [5,6], solar cells [7,8], battery electrodes [9,10], photodiodes [11], energy storage [12], transistors [13], gas sensors [14], biosensors [15], radiation sensors [16], anti-corrosive coatings [17,18] and electromagnetic interference shielding [19].…”

The Application of Inorganic Nanomaterials in Dye-Sensitized Solar Cells

“…Hence, the QD-sensitized solar cells (QD-SCs) have attracted more attention. In the past few years, a rapid increase of the conversion efficiency of QD-SCs has been reported, reaching values of around 4-5% at 1 sun (Chang et al, 2010). The efficiency of QD-SC still lags behind those of DSC; however, a further performance improvement for QD-SCs can be anticipated.…”

A comparative study on the electronic and optical properties of Sb-=SUB=-2-=/SUB=-Se-=SUB=-3-=/SUB=- thin film

“…It exhibits good thermoelectric and photovoltaic properties which allow possible applications for thermoelectric, thermophotovoltaic [5][6][7][8], solar cells [9] and so on. From the last decade intensive research has been focused on Sb 2 Se 3 as an alternative promising light absorber materials for organic−inorganic hybrid solar cells fabrication [5,10] due to its narrow band gap, low cost, nontoxic, comparatively earth abundant as well as amorphous phase crystallizes readily with a slight increase in temperature [11]. The melting point of Sb 2 Se 3 is 608…”