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- Joseph G. Altonji, Ching-I Huang, Christopher R. Taber
- 2005

We examine whether a voucher program for private schools would lure the best students away from public schools, with negative consequences for those who remain behind. Given both heterogeneity in program types and limited data on entrance into voucher programs, one cannot answer this question directly. Instead, we study what the e¤ect of vouchers would be… (More)

- Ching-I Huang, Chih-Ming Chen
- Chemphyschem : a European journal of chemical…
- 2007

We employ dissipative particle dynamics (DPD) to examine the self-assembly behavior of A(2)-star-(B-alt-C) molecules. We successfully observe various types of hierarchical structure-within-structures, such as A-formed spheres in the matrix formed by B and C alternating layers, hexagonally packed A-formed cylinders in the matrix with B and C segregated… (More)

- Cheng-Kai Chang, Satender Kataria, +19 authors Kuei-Hsien Chen
- ACS nano
- 2013

Band gap opening and engineering is one of the high priority goals in the development of graphene electronics. Here, we report on the opening and scaling of band gap in BN doped graphene (BNG) films grown by low-pressure chemical vapor deposition method. High resolution transmission electron microscopy is employed to resolve the graphene and h-BN domain… (More)

The effect of the thermodynamic selectivity of a solvent on the self-assembly of a styreneisoprene (SI) diblock copolymer with block molecular weights of 1.1 × 104 and 2.1 × 104 g/mol is investigated. We explore the phase behavior from the melt state to dilute solution in solvents that are of varying selectivities for the two blocks. Bis(2-ethylhexyl)… (More)

- Ching-I Huang
- 2007

Cellular phone carriers typically offer complicated nonlinear tariffs. Consumers make a discrete choice among several rate plans. Each plan has a nonlinear price schedule, and price is usually lower for in-network calls. I present an empirical framework to estimate demand under such nonlinear pricing schemes by using parsimonious data and apply the… (More)

- Yi-Kang Lan, Ching-I Huang
- The journal of physical chemistry. B
- 2009

We theoretically analyze the charge-transfer behavior of regioregular poly(3-hexylthiophene) (rr-P3HT) by quantum mechanical (QM) and molecular dynamics (MD) methods. In particular, we clarify the effects associated with the respective contribution from the ordered and disordered regions. In the ordered regions, the typical value of the hole mobility along… (More)

- Yi-Kang Lan, Ching-I Huang
- The journal of physical chemistry. B
- 2008

We use quantum mechanical (QM) methods to interpret the charge transport properties of the self-assembled poly-3-hexylthiophene (P3HT) molecules along the intrachain and interchain directions. Our approach is illustrated by a hopping transport model, in which we examine the variation of the electron-coupling strength (transfer integral) with the torsional… (More)

- Ching-I Huang, Hsin-Kai Fang, Chih-Hao Lin
- Physical review. E, Statistical, nonlinear, and…
- 2008

We employ dissipative particle dynamics (DPD) to examine the effects of composition and interaction parameter on the resulting phase behavior of ABC star copolymers. Here, we assume that the interaction parameters among the three components are equal. When the three components have comparable volume fractions, our DPD results illustrate that the unique… (More)

We analyze the segregation of strongly charged chains of N monomers of size a in the presence of multivalent salts with valence z as a function of the concentration of monomers φ in the solutions. The multivalent ions of opposite charge condense along the monomers and induce monomer attractions that lead to the formation of dense finite size aggregates… (More)

- Chuen-Yo Hsiow, Rathinam Raja, +7 authors Leeyih Wang
- Physical chemistry chemical physics : PCCP
- 2014

The effects of the spatial arrangement of the conjugated side chains of two-dimensional polymers on their optical, electrochemical, molecular-packing, and photovoltaic characteristics were investigated. Accordingly, novel polythiophenes with horizontally (PBTTTV-h) and vertically (PBTTTV-v) grafted terthiophene–vinylene (TTV) conjugated side chains were… (More)