Characteristics of crystalline silicon/Si quantum dot/poly(3,4- ethylenedioxythiophene) hybrid solar cells

Giichiro Uchida, Yuting Wang, Daiki Ichida, Hyunwoong Seo, Kunihiro Kamataki, Naho Itagaki, Kazunori Koga, Masaharu Shiratani

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Here, we report the characteristics of a novel organic/inorganic hybrid photovoltaic device using a Si quantum dot (QD) layer synthesized by multihollow discharge plasma chemical vapor deposition. The hybrid device has a p-i-n structure, which consists of a crystalline Si (c-Si) substrate, a Si QD layer, and poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS). We have examined the absorption coefficient and photoconductivity of Si QD layers, and confirmed electricity generation from Si QD layers. We have measured the current-voltage characteristics and incident photon-to-current conversion efficiency (IPCE) of c-Si/Si QD/poly(3,4-ethylenedioxythiophene) (PEDOT) hybrid solar cells. This hybrid device shows an energy conversion efficiency of 2.84%, a short-circuit current of 6.84 mA/cm2, an open-circuit voltage of 0.73 V, and a fill factor of 0.58. A high IPCE value of 82.8% is obtained at a short wavelength of 460 nm.

Original languageEnglish
Article number11NA05
JournalJapanese journal of applied physics
Volume52
Issue number11 PART 2
DOIs
Publication statusPublished - Nov 1 2013

Fingerprint

Semiconductor quantum dots
Solar cells
solar cells
quantum dots
Crystalline materials
Silicon
Conversion efficiency
silicon
Photons
energy conversion efficiency
Photoconductivity
photons
Open circuit voltage
Current voltage characteristics
short circuit currents
sulfonates
electricity
open circuit voltage
Energy conversion
photoconductivity

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Characteristics of crystalline silicon/Si quantum dot/poly(3,4- ethylenedioxythiophene) hybrid solar cells. / Uchida, Giichiro; Wang, Yuting; Ichida, Daiki; Seo, Hyunwoong; Kamataki, Kunihiro; Itagaki, Naho; Koga, Kazunori; Shiratani, Masaharu.

In: Japanese journal of applied physics, Vol. 52, No. 11 PART 2, 11NA05, 01.11.2013.

Research output: Contribution to journalArticle

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AU - Kamataki, Kunihiro

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AU - Koga, Kazunori

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